10 Chemical Control and Coordination

B) (a) is true but (b) is false.

Para-22.1
C) Both (a) and (b) are false.
Human Endocrine System D) (a) is false but (b) is true.
Introduction 7. Which of the following gland types is
correctly matched with its examples?
1. The organ system that helps regulate the
[Pg- 332,E]
metabolic activities through secretion of
A) Adrenal gland: exocrine gland
hormones is [Pg- 331,E]
B) Placenta: exocrine gland
A) cardiovascular system
C) Pancreas: endocrine gland only
B) endocrine system
D) Thyroid : endocrine gland
C) nervous system
8. Which of the following statements about
D) digestive system
hormones is/are correct? [Pg- 331,M]
2. The nervous and endocrine systems
I. Hormones are non-nutrient
interact to coordinate the functions of all
chemicals
the body systems and help to maintain
II. Hormones act as intercellular
[Pg- 331,E]
messengers
A) homeostasis
III. Hormones are produced in trace
B) reflex actions
amount
C) fight or flight response
IV. Hormones may be proteins, steroids,
D) stress responses
glycoproteins and bigenic mines
3. Responses of the endocrine system are
A) All B) I, II, III
_______ and _______ than the responses
C) IV D) I, III
of the nervous system. [Pg- 331,E]
A) rapid, long-lasting Paragraph- 22.2
B) rapid, briefer Gland : Endocrine Gland
C) slower, long-lasting
D) slower, briefer 9. Assertion: The nervous system produces
4. Which of the following statements a delayed response that lasts for a longer
correctly differentiate the endocrine and period.
nervous systems? [Pg- 331,M] Reason: Neurotransmitters are released
A) The endocrine system regulates all from postsynaptic neurons. [Pg- 331,H]
types of body cells. A) Both Assertion and Reason are true
B) Nerve fibers innervate all the body cell and Reason is correct explanation of
types. Assertion.
C) Endocrine system acts on specific B) Both Assertion and Reason are true,
muscle cells only. but Reason is not the correct
D) The influence of the nervous system explanation of Assertion.
is much broader. C) Assertion is true, but Reason is false.
5. Both neurotransmitters and hormones D) Assertion is false, but Reason is true.
[Pg- 331,E] 10. Which of the following statements is
A) produce a slower response. false? [Pg- 331,332,M]
B) bind to receptors on or in their target A) Hormones provide chemical
cells. coordination, integration and
C) are transported by interstitial fluid. regulation in the human body
D) produce a rapid response. B) Hormones regulate metabolism,
6. Consider the following statements: growth and development of our
[Pg- 331,M] organs
(a) Exocrine glands are the ductless C) Besides hypothalamus, pituitary,
glands. pineal, thyroid, adrenal, parathyroid,
b) Sweat glands and gastric glands thymus, etc., GIT, heart, kidney, etc
release their secretions directly into also produce hormones.
the blood. D) Hormone can be used again and
Select the correct option. again like biocatalyst
A) Both (a) and (b) are true. Paragraph- 22.2.1
 Hypothalamus B) the anterior pituitary gland and
stimulates secretion of LH and
11. The small part of the brain that is oxytocin.
present below the thalamus and serves C) the anterior pituitary gland and
as the main link between the nervous stimulates secretion of LH and FSH.
and endocrine system is [Pg- 332,E] D) the posterior pituitary gland and
A) pons stimulates secretion of oxytocin and
B) hypothalamus FSH.
C) brain stem 16. Which of the following hypothalamic
D) medulla oblongata hormones is incorrectly matched with its
12. Consider the following events: function? [Pg- 332,E]
[Pg- 332,M] A) TRH: Stimulates secretion of
(A) Production of regulatory hormones thyrotropin
from neurosecretory cells. B) PIH: suppresses the secretion of
(B) Hormones are secreted into the portal prolactin
system. C) GH-RH: stimulates secretion of
(C) Hormones move down the axons to growth hormone
axon endings. D) CRH: stimulates the release of
Arrange them in sequential order and prolactin
select the correct option. 17. How many of the following are correct?
A) A, B, C [Pg- 332,M]
B) A, C, B (i) Somatostatin is released from
C) B, C, A hypothalamus.
D) C, A, B (ii) Hypothalamic hormones reach the
13. The hormones produced by pituitary gland through
hypothalamic nuclei [Pg- 332,E] hypophyseal-hypoportal system.
A) regulate the functions of the anterior (iii) Anterior pituitary is under direct
pituitary. neural regulation of hypothalamus.
B) regulate the functions of the posterior A) 1 B) 2
pituitary. C) 3 D) None of these
C) regulate the functions of both 18. Portal blood vessels connect the ______ to
anterior and posterior pituitary. the ____ [Pg- 332,E]
D) inhibit the secretion of posterior A) Hypothalamus, brain
pituitary hormones. B) Hypothalamus, posterior pituitary
14. Which of the following statements about C) hypothalamus, anterior pituitary
hypothalamic hormones is incorrect? D) Anterior pituitary, posterior pituitary
[Pg- 332,H]
A) Hypothalamic releasing hormones Paragraph- 22.2.2
stimulate the secretion of anterior Pituitary Gland
pituitary hormones.
B) Hypothalamic releasing hormones 19. The pituitary gland is a pea-shaped
stimulate the secretion of posterior gland that lies in the hypophyseal fossa
pituitary hormones. of [Pg- 333,E]
C) Hypothalamic inhibiting hormones A) sella turcica of the glenoid bone
inhibit the secretion of anterior B) sella turcica of the sphenoid bone
pituitary hormones. C) sella turcica of the parietal bone
D) Somatostatin is a hypothalamic D) sella turcica of the frontal bone
inhibitory hormone. 20. The pituitary gland is connected to the
15. GnRH, a hypothalamic hormone, needed hypothalamus by [Pg- 333,E]
in reproduction, acts on [Pg- 332,M] A) infundibulum
A) the posterior pituitary gland and B) bony cavity
stimulates secretion of LH and C) hyaline cartilage
relaxin. D) elastic cartilage
21. Following is the diagrammatic
representation of the pituitary gland and
its connection with the hypothalamus.
 [Pg- 333,E] causes several disorders. Which of the
following disorder is correctly matched
with its respective endocrine gland?
[Pg- 333,M]
A) Gigantism: Hyposecretion of growth
hormone
B) Dwarfism: Hypersecretion of growth
hormone
C) Acromegaly: Hypersecretion of growth
hormone
D) Gigantism: Hypersecretion of
somatostatin
26. Hypersecretion of growth hormone in
adults does not cause a further increase
in height, because [Pg- 333,E]
A) muscle fibers do not grow in size after
birth.
B) growth hormone becomes inactive in
Select the correct option regarding the adults.
same. C) epiphyseal plates close after
A) I: Anterior pituitary that is composed adolescence.
of neural tissues. D) bones lose their sensitivity to growth
B) I: Anterior pituitary that is composed hormone in adults.
of epithelial tissues. 27. A person is diagnosed with
C) II: Posterior pituitary that is hypersecretion of growth hormone due to
composed of epithelial tissues. a pituitary tumor. Select the incorrect
D) II: Posterior pituitary that is statement about his medical condition.
composed of connective tissues. [Pg- 333,M]
22. In adults, adenohypophysis accounts for A) Hypersecretion of growth hormone
75% of the total weight of the gland and would cause hyperglycemia.
consists of [Pg- 333,E] B) There will be a reduced secretion of
A) pars distalis insulin.
B) pars tuberalis and pars intermedia C) Insulin secretion would remain
C) pars nervosa unaffected.
D) pars intermedia D) Hypersecretion of growth hormone
23. Which of the following hormone is results in a diabetogenic effect.
secreted by pars intermedia? [Pg- 333,E] 28. Hypersecretion of prolactin hormone in
A) Prolactin females causes inappropriate lactation
B) Thyroid-stimulating hormone and absence of menstrual cycle. Based
C) Adrenocorticotrophic hormone on the given information, select the pair
D) Melanocyte stimulating hormone of correct statements. [Pg- 333,M]
24. Which of the following statement is (A) Prolactin is required for milk ejection
incorrect about the posterior pituitary? from mammary glands.
[NCERT Exemplar] [Pg- 333,M] (B) The blood level of prolactin is
A) The posterior pituitary lobe is not a increased just before menstruation.
true endocrine gland. (C) During pregnancy, prolactin
B) It serves as a hormone storage region. inhibiting hormone suppresses the
C) The posterior pituitary lobe and release of prolactin.
infundibulum together make (D) Sucking action of newborn inhibits
neurohypophysis. the release of PIH.
D) Oxytocin and vasopressin hormones A) A and B B) B and C
are synthesized in the posterior C) A and C D) B and D
pituitary lobe. 29. Select the option that correctly matches
25. Malfunctioning of endocrine gland the hormone with its source endocrine
deviates the body from homeostasis and
 gland and respective function/target C) increased sensitivity of kidneys for
organs. [Pg- 333,M] ADH
Hormone Endocrine Function/target D) hypersecretion of ADH by the
gland organ posterior pituitary
(A) TSH Anterior All body cells 36. Assertion: TSH stimulates the thyroid
pituitary gland to secrete thyroid hormones.
(B) ACTH Posterior Stimulates secretion Reason: The hormones of anterior
pituitary of glucocorticoids
pituitary that regulate the secretions of
from the adrenal
cortex
other endocrine glands are called tropic
(C) LH Anterior Triggers secretion of hormones. [Pg- 334,H]
pituitary androgens in males A) Both Assertion and Reason are true
(D) FSH Posterior Stimulates the and Reason is correct explanation of
pituitary growth of ovaria Assertion.
follicles B) Both Assertion and Reason are true,
but Reason is not the correct
30. Which of the following set of hormones explanation of Assertion.
are called gonadotropins? [Pg- 333,E] C) Assertion is true, but Reason is false.
A) GH and LH B) LH and FSH D) Assertion is false, but Reason is true.
C) LH and ACTH D) FSH and TSH 37. Assertion: Hyposecretion of growth
31. The target cells/structures of FSH and hormone causes stunted growth in
LH in human males are [Pg- 333,E] infants.
A) interstitial cells and sertoli cells Reason: Epiphyseal plates are closed
respectively. after the childbirth. [Pg- 334,H]
B) sertoli cells and interstitial cells A) Both Assertion and Reason are true
respectively. and Reason is correct explanation of
C) interstitial cells only. Assertion.
D) sertoli cells only. B) Both Assertion and Reason are true,
32. LH is required for fertility in females but Reason is not the correct
because [Pg- 333,334,M] explanation of Assertion.
A) it maintains corpus luteum. C) Assertion is true, but Reason is false.
B) it induces ovulation. D) Assertion is false, but Reason is true.
C) it stimulates the release of FSH from 38. Assertion: Hypersecretion of GH during
corpus luteum. childhood causes acromegaly.
D) both (a) and (b). Reason: The growth hormone regulates
33. Which of the following hormone is the fluid-electrolyte balance of the body.
incorrectly matched with its target [Pg- 334,H]
organ/cells? [Pg- 334,E] A) Both Assertion and Reason are true
A) MSH: melanocytes and Reason is correct explanation of
B) Oxytocin: Smooth muscles Assertion.
C) Vasopressin: distal tubules of kidneys B) Both Assertion and Reason are true,
D) ADH: Glomerulus but Reason is not the correct
34. Diuresis refers to [Pg- 334,E] explanation of Assertion.
A) loss of water through urine C) Assertion is true, but Reason is false.
B) reduced loss of water through urine D) Assertion is false, but Reason is true.
C) process of urine formation in 39. Assertion: ADH secretion is stimulated
nephrons under the conditions of dehydration.
D) contraction of muscles of the urinary Reason: ADH prevents water loss from
bladder the body by decreasing the urine volume.
35. Diabetes insipidus is caused by [Pg- 334,H]
[Pg- 334,E] A) Both Assertion and Reason are true
A) hyposecretion of insulin by the and Reason is correct explanation of
pancreas Assertion.
B) hyposecretion of ADH by the posterior B) Both Assertion and Reason are true,
pituitary but Reason is not the correct
explanation of Assertion.
 C) Assertion is true, but Reason is false. C) T4 has a shorter half-life.
D) Assertion is false, but Reason is true. D) follicular cells cannot synthesize T3.
45. Thyroid hormones are required for
Paragraph- 22.2.3
normal growth and development of
Pineal Gland humans because [Pg- 335,M]
40. Which of the following set of functions is A) thyroid hormones increase the basal
not regulated by the hormone of the metabolic rate in most body tissues.
pineal gland? [NCERT Exemplar] B) thyroid hormones are regulated by
[Pg- 334,M] negative feedback systems.
A) Diurnal rhythm and body C) thyroid hormones contain iodine
temperature atoms.
B) Metabolism and pigmentation D) thyroid hormones stimulate glycogen
C) Growth of bones and defense formation.
capability 46. A group of tadpoles with no thyroxin
D) Diurnal rhythm and defense hormone production exhibited disrupted
capability metamorphosis. Which of the following
41. Which of the following hormone exhibits statement correctly describes the role of
an anti-gonadotropic effect in humans? thyroid hormones in metamorphosis.
[Pg- 334,E] [Pg- 335,M]
A) ADH B) Thyroxin A) Thyroid hormones lower the blood
C) Melatonin D) ACTH calcium levels.
B) Thyroid hormones increase blood
Paragraph- 22.2.4 calcium levels.
Thyroid Gland C) Thyroid hormones lower the blood
phosphate levels.
42. Following is the diagrammatic view of the
D) Thyroxin stimulates protein
position of endocrine glands.
synthesis.
47. Which of the following disorders of the
endocrine system is incorrectly matched
with its description? [Pg- 335,M]
A) Hypothyroidism: Iodine deficiency
B) Goitre: Enlarged thyroid gland
C) Hyperthyroidism: Cretinism
D) Exopthalmic goitre: Hyperthyroidism
48. Which of the given statement correctly
differentiates Myxedema from Graves’
Select the option that correctly labels the disease? [Pg- 335,M]
glands and their respective hormones. A) Hypothyroidism in adult ages causes
[Pg- 334,E] Graves’ disease.
A) I - Thyroid gland - Thyroxine and TSH B) Graves’ disease is more common
B) II - Parathyroid gland - PTH among males than females.
C) II - Thyroid gland - Thyroxine and C) Myxedema causes swelling in facial
calcitonin tissues due to the accumulation of
D) I - Parathyroid gland - PTH and interstitial fluid.
calcitonin D) Myxedema is an auto-immune
43. The thyroid gland is composed of disorder.
[Pg- 334,E] 49. Graves’ disease is caused due to [NEET–
A) stromal tissues only 2016] [Pg- 335,E]
B) follicles only A) hyposecretion of the thyroid gland
C) stromal tissues and follicles B) hypersecretion of the thyroid gland
D) isthmus C) hyposecretion of the adrenal gland
44. Most of the T4 is converted into T3 in the D) hypersecretion of the adrenal gland
target tissues because [Pg- 334,E] 50. Assertion: Thyroid hormones regulate
A) T4 is more active. oxygen consumption and basal
B) T3 is more active. metabolic rate of the body cells.
 Reason: Thyroid hormones reduce the B) thymus gland
number of active mitochondria in body C) parathyroid gland
cells. [Pg- 335,H] D) pineal gland
A) Both Assertion and Reason are true 56. Which of the following endocrine gland is
and Reason is correct explanation of responsible for reduced immune
Assertion. responses in old ages? [Pg- 335,E]
B) Both Assertion and Reason are true, A) Thyroid gland B) Pineal gland
but Reason is not the correct C) Thymus gland D) Pituitary gland
explanation of Assertion.
Paragraph- 22.2.7
C) Assertion is true, but Reason is false.
D) Assertion is false, but Reason is true. Adrenal Gland
Paragraph- 22.2.5 57. Adrenal cortex and adrenal medulla
differ from each other in terms of
Parathyroid Gland
[Pg- 336,E]
51. The physiological role of parathyroid A) histology B) function
gland does not include [Pg- 335,E] C) origin D) all of these
A) increased activity of osteoclasts 58. The endocrine gland present at the top of
B) bone resorption kidneys and involved in the fluid-
C) reduced loss of Ca2+ and Mg2+ ions electrolyte balance of the body is
into urine [Pg- 336,M]
D) reduced loss of HPO42− into the urine A) adrenal gland
52. Which of the following hormones can B) pineal gland
play a significant role in osteoporosis? C) parathyroid gland
[NEET–2016] [Pg- 335,M] D) pancreas
A) Aldosterone and Prolactin 59. Which of the following categories of
B) Progesterone and Aldosterone hormones is correctly matched with its
C) Estrogen and Parathyroid hormone examples? [NCERT Exemplar]
D) Parathyroid hormone and Prolactin [Pg- 336,E]
53. Which of the following pairs of hormones A) Catecholamines: adrenaline and
have antagonistic effects? [Pg- 335,E] noradrenaline
A) T3 and T4 B) Emergency hormones: adrenaline
B) ACTH and glucocorticoids and insulin
C) PTH and TCT (thyrocalcitonin) C) Glucocorticoids: aldosterone
D) T3 and TSH D) Mineralocorticoids: cortisol
54. Assertion: Calcitonin and PTH exhibit an 60. Consider the following statements:
antagonistic effect on blood levels of [Pg- 336,H]
calcium ions. (a) Some chemicals act as both
Reason: Insulin and glucagon exhibit neurotransmitters and hormones.
antagonistic effects on the blood levels of (b) Norepinephrine is released as a
glucose. [Pg- 335,H] neurotransmitter by sympathetic
A) Both Assertion and Reason are true division.
and Reason is correct explanation of (c) Norepinephrine is released as a
Assertion. hormone by the thyroid gland.
B) Both Assertion and Reason are true, (d) Norepinephrine is released as a
but Reason is not the correct hormone by the parathyroid gland.
explanation of Assertion. Which of the two statements are correct?
C) Assertion is true, but Reason is false. A) a and b B) a and c
D) Assertion is false, but Reason is true. C) b and c D) c and d
61. Secretion of hormones from adrenal
Paragraph- 22.2.6
medulla is controlled by [Pg- 336,E]
Thymus Gland A) parasympathetic nervous system
55. The endocrine gland that functions as a B) pituitary gland
component of the lymphatic system is C) sympathetic nervous system
[NCERT Exemplar] [Pg- 335,E] D) peripheral nervous system
A) thyroid gland
62. The fight or flight response generated by D) Assertion is false, but Reason is true.
the release of hormones by adrenal
Paragraph- 22.2.8
medulla includes [Pg- 336,M]
A) dilation of pupils and increased heart Pancreas
rate and blood pressure. 68. Which of the following pairs of endocrine
B) glycogenolysis and lipid synthesis. glands are composite glands?
C) increased muscular movement of the [Pg- 337,E]
gastrointestinal tract. A) Pancreas and thymus gland
D) reduced blood glucose levels. B) Adrenal glands and thymus gland
63. Which of the following hormones of the C) Pancreas and adrenal gland
adrenal cortex are correctly matched D) Adrenal gland and pineal gland
with their source? [Pg- 337,E] 69. The cells that make about 70% of the
A) Mineralocorticoids - Zona fasciculata cells of the pancreatic islets serve to
cells secrete [Pg- 337,E]
B) Glucocorticoids - Zona glomerulosa A) insulin
cells B) glucagon
C) Androgens - Zona glomerulosa cells C) somatostatin
D) Glucocorticoids - Zona fasciculata D) pancreatic polypeptide
cells 70. Alpha and delta cells of pancreatic
64. Glucocorticoids are involved in islands are the source of [Pg- 337,E]
[Pg- 337,E] A) glucagon and insulin respectively
A) fluid electrolyte balance B) somatostatin and glucagon
B) carbohydrate metabolism respectively
C) water reabsorption from kidneys C) glucagon and somatostatin
D) regulation of blood glucose levels respectively
65. Which of the following sets of D) insulin and glucagon respectively
physiological functions correctly 71. Which of the following hormones is
describes the role of cortisol in the correctly matched with its
human body? [NCERT Exemplar] description/effects? [Pg- 338,E]
[Pg- 337,M] A) Hyperglycemic hormone: Glucagon
A) Anti-inflammatory response and B) Hypoglycemia: Glucagon
suppression of the immune response C) Hypercalcemic hormone: Calcitonin
B) Breakdown of RBCs in spleen D) Addison’s disease: Catecholamines.
C) Upregulation of uptake of amino 72. Which of the given statements correctly
acids differentiates glycogenolysis from
D) Reabsorption of Na+ from kidneys glycogenesis? [Pg- 338,M]
66. Target organ/structure of aldosterone is A) Glycogenolysis is the formation of
[NCERT Exemplar] [Pg- 337,E] glycogen from glucose and is triggered
A) renal calyces by glucagon.
B) renal tubules B) Glycogenolysis is a breakdown of
C) glomerulus glycogen into glucose and is triggered
D) Bowman’s capsule by insulin.
67. Assertion: Adrenal medullary hormones C) Glycogenesis is the conversion of
regulate the fluid-electrolyte balance of glucose into glycogen and is
the body. stimulated by insulin.
Reason: Aldosterone is a glucocorticoid D) Glycogenesis is the formation of
that raises blood sodium levels. glucose from non-carbohydrate
[Pg- 337,H] substrates.
A) Both Assertion and Reason are true 73. Diabetes mellitus is a disorder of
and Reason is correct explanation of carbohydrate metabolism and is
Assertion. characterised by [Pg- 338,E]
B) Both Assertion and Reason are true, A) polyuria B) polydipsia
but Reason is not the correct C) polyphagia D) all of these
explanation of Assertion. 74. The water-soluble fuels that are normally
C) Assertion is true, but Reason is false. exported by the liver but overproduced
 during fasting or diabetes mellitus when B) Testosterone suppresses the
not treated are known as [Pg- 338,E] secretion of LH and GnRH by the
A) fatty acids B) glucose positive feedback mechanism.
C) ketone bodies D) amino acids C) FSH and testosterone stimulate the
75. Match the following hormones with the sustentacular cells to stimulate the
respective disease. [NEET–2019] secretion of the androgen-binding
[Pg- 333-338,M] protein.
Column-I Column-II D) Testosterone stimulates the process
(a) Insulin (1) Addison’s disease of spermiogenesis.
(b) Thyroxin (2) Diabetes Insipidus 80. The function of inhibin hormone is to
(c) Corticoids (3) Acromegaly [Pg- 338,E]
(d) Growth (4) Goitre A) inhibit the FSH secretion
hormone B) inhibit the testosterone secretion
(5) Diabetes mellitus
C) inhibit spermiogenesis
Select the correct option. D) stimulate spermatogenesis
(a) (b) (c) (d)
81. Which of the given sets of organs
(A) 5 1 2 3
represent the male accessory sex organs?
(B) 2 4 3 1
[Pg- 338,E]
(C) 5 4 1 3
(D) 2 4 1 3
A) Epididymis and testes
B) Vas deferens and testes
Paragraph- 22.2.9 C) Seminal vesicles and prostate gland
D) Urethra and oviduct
Testes 82. The hormone responsible for the descent
76. The ________ are the oval glands present of testes into the scrotum is [Pg- 338,E]
in the scrotum and serve to secrete the A) FSH B) LH
hormones. [Pg- 338,E] C) testosterone D) inhibin
A) ovaries and androgen 83. The function of testosterone in human
B) testes and testosterone males is/are [Pg- 338,E]
C) pineal gland and melatonin A) development of male secondary
D) adrenal gland and cortisol sexual characters
77. Which of the following is not a function B) male sexual behaviour
of testes? [Pg- 338,E] C) stimulation of protein breakdown
A) Spermatogenesis D) both (A) and (B)
B) Sperm production 84. Assertion: In human males, LH is
C) Testosterone secretion required for sperm production.
D) All of these Reason: FSH and testosterone stimulate
78. Which of the following structures/cells of interstitial cells to secrete androgen
testes is incorrectly matched with its binding protein. [Pg- 338,H]
functions? [NCERT Exemplar] A) Both Assertion and Reason are true
[Pg- 338,E] and Reason is correct explanation of
A) Seminiferous tubules - Assertion.
Spermatogenesis B) Both Assertion and Reason are true,
B) Sustentacular cells - Secretion of FSH but Reason is not the correct
C) Interstitial cells - Secretion of explanation of Assertion.
testosterone C) Assertion is true, but Reason is false.
D) Sertoli cells - Nourishment of D) Assertion is false, but Reason is true.
developing spermatogenic cells Paragraph-22.2.10
79. Testes serve as an endocrine gland.
Ovary
Which of the given statement about
testicular hormones is correct? 85. Androgens are responsible for libido in
[Pg- 338,M] both human males and females. The
A) LH from the posterior pituitary source of androgens in human females is
stimulates interstitial cells to secrete [Pg- 336,E]
testosterone. A) ovaries B) oviducts
C) corpus luteum D) adrenal cortex
86. Which of the following set of hormones is A) Testis and ovary function as a
known as female sex hormones? primary sex organ as well as
[Pg- 338,E] endocrine gland
A) FSH and LH B) Ovaries are located in thoracic cavity
B) Estrogen and progesterone of females
C) FSH and estrogen C) Ovary produces ovum, 2 groups of
D) LH and estrogen steroid hormones (estrogen and
87. Match the following structures in progesterone)
Column-I with the correct description in D) Ovary is composed of ovarian follicles
Column-II. [Pg- 338,339,M] and stromal tissue
Column-I Column-II 93. Which of the following hormone is
(a) Ovarian follicles (1) progesterone synergistic to human growth hormone?
(b) Corpus luteum (2) LH [Pg- 338,E]
(c) Graafian follicle (3) prolactin A) Estrogen
(d) Mammary glands (4) estrogen B) Progesterone
Select the correct option. C) Inhibin
(a) (b) (c) (d) D) Androgen binding protein
(A) 4 3 2 1 94. After ovulation, the ruptured follicle is
(B) 4 1 2 3 converted into- [Pg- 338,E]
(C) 3 4 2 1
A) Graafian follicle
(D) 3 1 4 2
B) Corpus callosum
C) FSH
88. A temporary endocrine gland in the
D) LH
human body is [NEET–2017] [Pg- 338,E]
95. The hormone responsible to prepare and
A) pineal gland
maintain endometrium for implantation
B) corpus cardiacum
of a fertilized ovum is: [Pg- 339,E]
C) corpus luteum
A) FSH B) LH
D) corpus allatum
C) Progesterone D) Inhibin
89. Which of the following statement is
96. Assertion: Corpus luteum is a temporary
incorrect about the effects and regulation
endocrine gland.
of female sex hormones?
Reason: Corpus luteum secretes female
[Pg- 338,339,M]
sex hormones. [Pg- 338,E]
A) Ovarian and uterine cycles are under
A) Both Assertion and Reason are true
the regulation of Gonadotropin-
and Reason is correct explanation of
releasing hormone.
Assertion.
B) In females, FSH triggers the
B) Both Assertion and Reason are true,
development of follicles.
but Reason is not the correct
C) Ovarian follicles secrete estrogen
explanation of Assertion.
under influence of FSH and LH.
C) Assertion is true, but Reason is false.
D) Estrogen from ovarian follicles is
D) Assertion is false, but Reason is true.
converted into progesterone.
90. Which of the following hormones Paragraph- 22.3
regulates the formation of corpus luteum Hormones of Heart, Kidney and
and stimulates it to release hormones? Gastrointestinal Tract
[Pg- 338,E]
A) FSH B) LH 97. Atrial natriuretic hormone I factor (ANF)
C) Estrogen D) Androgens secreted by atrial wall of our heart has
91. Which of the following hormones is exactly the opposite function of this
secreted by corpus luteum? [NCERT hormone secreted by zona glomerulosa –
Exemplar] [Pg- 338,E] [Pg- 339,E]
A) Estrogens B) Progesterone A) ADH B) Aldosterone
C) Relaxin D) LH C) Androgen D) Calcitonin
92. Which of the following statements is 98. Match the hormones in Column-I with
incorrect? [Pg- 338,M] their functions in Column-II. [Pg- 339,M]
Column-I Column-II
(a) Progesterone (1) Inhibits uterine B) Melatonin - pineal gland, regulates
contraction the normal rhythm of the sleep-wake
(b) Atrial natriuretic (2) Formation of RBCs cycle.
factor C) Progesterone - corpus luteum,
(c) Erythropoietin (3) Formation of stimulation of growth and activities of
alveoli in
female secondary sex organs.
mammary glands
D) Atrial natriuretic factor - ventricular
(d) Relaxin (4) Lowers blood
pressure wall, increases the blood pressure.
Select the correct option. 103. Assertion: Hormones are also secreted by
(a) (b) (c) (d) tissues that are not the endocrine
(A) 4 3 2 1 glands.
(B) 4 1 2 3 Reason: Kidneys secrete the hormone
(C) 3 4 2 1 atrial natriuretic factor. [Pg- 339,H]
(D) 2 1 4 3 A) Both Assertion and Reason are true
and Reason is correct explanation of
99. ANF- [Pg- 339,E] Assertion.
A) Decrease B.P. B) Both Assertion and Reason are true,
B) Causes vasodilation but Reason is not the correct
C) Is secreted when B.P. increases explanation of Assertion.
D) All C) Assertion is true, but Reason is false.
100. Gastrin, secretin, cholecystokinin (CCK) D) Assertion is false, but Reason is true.
and gastric inhibitory peptide (GIP) are 4 104. Assertion: Duodenum serves endocrine
major peptide hormone secreted by- function and secretes secretin hormone.
[Pg- 339,E] Reason: Gastrin hormone from the
A) Only stomach mucosa of the stomach stimulates the
B) Only small intestine secretion of gastric glands. [Pg- 339,H]
C) Gastro-intestinal tract A) Both Assertion and Reason are true
D) Only pancreas and Reason is correct explanation of
101. Which of the following hormones of the Assertion.
gastrointestinal tract is wrongly matched B) Both Assertion and Reason are true,
with its function? [Pg- 339,M] but Reason is not the correct
Column-I Column-II explanation of Assertion.
(a) Gastrin (1) Inhibition of gastric C) Assertion is true, but Reason is false.
secretions
D) Assertion is false, but Reason is true.
(b) Gastric inhibitory (2) Stimulates
peptide (GIP) secretion of Paragraph- 22.4
pancreatic juice Mechanism of Hormone Action
and bile juice
(c) Secretin (3) Secretion of gastric 105. Match the Column I with Column II.
juice [Pg- 340,M]
(d) Cholecystokinin (4) Stimulates Column I Column II
secretion of A. Peptide, I. Epinephrine,
pancreatic juice polypeptide protein nor-epinephrine
Select the correct option. hormones
(a) (b) (c) (d) B. Steroid II. T3 and T4
(A) 3 1 4 2 (thyroid
(B) 2 1 4 3 hormones)
(C) 3 4 2 1 C. lodothyronines III. Cortisol,
(D) 2 3 4 1 testosterone,
estradiol,
102. Identify the hormone with its correct progesterone
matching of source and function. D. Amino acid IV. Pituitary
[Pg- 339,E] derivatives hormones,
A) Oxytocin - posterior pituitary, growth, pancreatic
and maintenance of mammary hormones,
glands. hypothalamic
hormones
 [Pg- 340,E]
A) A-I , B - II, C - III , D - IV A) amino acid B) carbohydrate
B) A- IV, B - III, C - II , D - I C) steroid D) nucleic acid
C) A- IV, B – III , C - I, D - II 114. Which of the given hormones is
D) A- I, B - II, C - IV, D - III incorrectly matched with its source
106. Steroid hormones initiate the production amino acid? [Pg- 340,M]
of target cell substances in which A) Serotonin: Tryptophan
manner? [Pg- 340,E] B) Histamine: Histidine
A) They initiate second messenger C) Epinephrine: Tyrosine
activity D) Melatonin: Alanine
B) They bind with membrane protein 115. The amino acid tryptophan is the
C) They initiate DNA transcription precursor for the synthesis of
D) They activate enzyme pathways [Pg- 340,M]
107. Why do some hormones (first messenger) A) estrogen and progesterone
need to trigger a "second messenger" to B) cortisol and cortisone
activate a target cell? [Pg- 340,M] C) melatonin and serotonin
A) The first messenger needs activation D) thyroxin and triiodothyronine
of ATP 116. Which of the following statement
B) The first messenger cannot cross a correctly differentiate the transport of
plasma membrane water-soluble and lipid soluble
C) There are no specific cell surface hormones in blood? [Pg- 340,M]
receptors for first messenger A) Most of the lipid-soluble hormones
D) The first messenger is not a water- are bound to transport proteins.
soluble molecule B) Most of the water-soluble hormones
108. Which of the following category of are bound to transport proteins.
hormones is incorrectly matched with its C) Transport proteins enhance the rate
examples? [Pg- 340,E] of hormone loss in urine
A) Protein hormone: Insulin D) Transport proteins are synthesized in
B) Steroids: Cortisol muscles.
C) Iodothyronines: Thyroid hormones 117. Receptors for protein hormones are
D) Amino-acid derivatives: Oxytocin mostly present at/in [NCERT Exemplar]
109. Which of the following categories of the [Pg- 339,E]
hormones is water-insoluble? A) nucleus B) nuclear envelop
[Pg- 340,E] C) cell surface D) cytoplasm
A) Eicosanoids 118. Which of the given statement is correct
B) Peptide hormones about the mechanism of water soluble
C) Amines hormones? [Pg- 339,340,M]
D) Steroid hormones A) Hormones bind to their cytoplasmic
110. Which of the given hormones is/are receptors present in the target cells.
second messengers? [Pg- 340,E] B) The hormone-receptor complex alters
A) cAMP B) IP3 the gene expression.
C) Ca+2 D) All C) Hormones serve as the first
111. Which of the following hormones does messenger and cause the production
not act by a second messenger system? of a second messenger.
[Pg- 340,E] D) The newly formed proteins produce a
A) Glucagon B) Epinephrine physiological response.
C) FSH D) Testosterone 119. Which of the following molecules serve as
112. Which of the given sets of endocrine the second messenger in the mechanism
gland secrete/ release only water-soluble of action of a protein hormone?
hormones? [Pg- 340,E] [Pg- 340,E]
A) Pancreas and thyroid gland A) T3 B) cAMP
B) Parathyroid gland and pineal gland C) T4 D) protein kinases
C) Adrenal gland and thyroid gland 120. Following is the diagrammatic
D) Parathyroid gland and pancreas representation of the mechanism of
113. Epinephrine is _________ derivative. action of a protein hormone. Which of the
 given options correctly describes the D) II-Second messenger, IV-mRNA
labeled events? [Pg- 340,E] 122. Assertion: Aldosterone can diffuse freely
through the lipid bilayer.
Reason: Steroid hormones are lipid-
soluble. [Pg- 340,H]
A) Both Assertion and Reason are true
and Reason is correct explanation of
Assertion.
B) Both Assertion and Reason are true,
but Reason is not the correct
explanation of Assertion.
C) Assertion is true, but Reason is false.
D) Assertion is false, but Reason is true.
123. Assertion: Receptors for steroid
A) I-hormone receptor hormones are present at the cell surface.
B) II-hormone Reason: Receptors for protein hormones
C) III-second messenger are present in the nucleus.
D) IV-physiological response [Pg- 339,340,H]
121. Following is the diagrammatic A) Both Assertion and Reason are true
representation of the mechanism of and Reason is correct explanation of
action of a steroid hormone. Which of the Assertion.
given options correctly describes the B) Both Assertion and Reason are true,
labeled events? [Pg- 341,E] but Reason is not the correct
explanation of Assertion.
C) Assertion is true, but Reason is false.
D) Assertion is false, but Reason is true.
124. Assertion: cAMP serves as the second
messenger for protein hormones.
Reason: Insulin is a protein hormone.
[Pg- 340,H]
A) Both Assertion and Reason are true
and Reason is correct explanation of
Assertion.
B) Both Assertion and Reason are true,
but Reason is not the correct
A) I-Hormone, II-second messenger explanation of Assertion.
B) I-Hormone, III-nucleus C) Assertion is true, but Reason is false.
C) II-Hormone-receptor complex, IV- D) Assertion is false, but Reason is true.
DNA
 Answer Key
CHEMICAL CONTROL AND COORDINATION

Q 1 2 3 4 5 6 7 8 9 10
Ans B A C A B C D A D D
Q 11 12 13 14 15 16 17 18 19 20
Ans B B A B C D B C B A
Q 21 22 23 24 25 26 27 28 29 30
Ans A A D D C C C D C B
Q 31 32 33 34 35 36 37 38 39 40
Ans B D D A B A C D A C
Q 41 42 43 44 45 46 47 48 49 50
Ans C B C B A D C C B C
Q 51 52 53 54 55 56 57 58 59 60
Ans D C C B B C D A A A
Q 61 62 63 64 65 66 67 68 69 70
Ans C A B B A B D C A C
Q 71 72 73 74 75 76 77 78 79 80
Ans A C D C C B D B C A
Q 81 82 83 84 85 86 87 88 89 90
Ans C C D C D B B C D B
Q 91 92 93 94 95 96 97 98 99 100
Ans B B A C C A B C D C
Q 101 102 103 104 105 106 107 108 109 110
Ans A B C D B C B D D D
Q 111 112 113 114 115 116 117 118 119 120
Ans D B A D C A C C B C
Q 121 122 123 124
Ans B A D B