LifeScience
Citylight Complex
NEET EXCRETION
NEET-UG - Biology
Time Allowed: 45 minutes Maximum Marks: 300
1. Vasopressin is related with: [4]
a) Decrease GFR b) Dilution of urine
c) Low blood pressure d) Concentration of urine
2. Uricotelic mode of passing out nitrogenous wastes is found in: [4]
a) Amphibians and Reptiles b) Insects and Amphibians
c) Birds and Annelids d) Reptiles and Birds
3. The portion of nephron which is relatively impermeable to water is: [4]
a) Asscending limb of loop of Henle b) Distal convoluted tubule
c) Collecting tubule d) Proximal convoluted tubule
4. Mechanism of uric acid excretion in a nephron, is [4]
a) Osmosis b) Diffusion
c) Secretion d) Ultrafiltration
5. Aquatic amphibians are ammonotelic in: [4]
a) Both Larvel stage and Adult stage b) All stage
c) Adult stage d) Larval stage
6. Bowman’s capsule and glomerulus together constitute: [4]
a) Malpighian corpuscle b) Nothing
c) A nephron d) Nephric corpuscle
7. Where the conversion of harmful prussic acid into potassium sulphocyanide takes place? [4]
a) Liver b) Bone marrow
c) Spleen d) Lymph glands
8. Which of the following does not favour the formation of large quantities of dilute urine? [4]
a) Atrial-natriuretic factor b) Alcohol
c) Rennin d) Caffeine
9. Cortical nephrons are ________ in number to juxta-medullary nephrons: [4]
a) Equal b) More
c) Depends on species to species d) Less
10. In mammalian kidney, Henle’s loop is present in: [4]
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a) Cortex b) All of these
c) Pelvis d) Medulla
11. Antennal glands are excretory organs of: [4]
a) Moths b) Cray fishes
c) Spiders d) Scorpions
12. In which of the following nitrogenous wastes are excreted in the form of uric acid? [4]
a) Insects and fishes b) Aves and lizard
c) Mammals and reptiles d) Frogs and cartilaginous fishes
13. The term haematuria is used to describe: [4]
a) Blood poisoning b) Blood cancer
c) Internal bleeding d) Blood in urine
14. Which one of the following option gives the correct categorization of six animals according to the type of [4]
nitrogenous wastes (A, B, C) they give out?
A B C
AMMONOTELIC UREOTELIC URICOTELIC
A Frog, Lizards Aquatic Amphibia, Humans Cockroach, Pigeon
B Aquatic Amphibia Frog, Humans Pigeon, Lizards, Cockroach
C Aquatic Amphibia Cockroach, Humans Frog, Pigeon, Lizards
D Pigeon, Humans Aquatic Amphibia, Lizards Cockroach, Frog
a) D b) A
c) B d) C
15. Which of the following is correct? [4]
A. Afferent arteriole is narrower than the efferent
B. Efferent venule is narrower than the vein
C. Efferent arteriole is narrower than the afferent arteriole
D. None of these
a) C b) A
c) B d) D
16. In aquatic organism the waste end product of nitrogen metabolism: [4]
a) Urea b) Allantois
c) Nitrogen d) Ammonia
17. ADH influences water permeability in the: [4]
a) Collecting tubule b) Distal convoluted tubule
c) Proximal convoluted tubule d) All of these
18. The conversion of NH3 into urea occurs in: [4]
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a) Intestine b) Liver
c) Heart d) Kidney
19. Ascending limb of loop of Henle is permeable for: [4]
a) Na+ b) Glucose
c) Water d) NH3
20. The control centres of micturition lies in: [4]
a) CNS b) Brain stem and spinal centres
c) All of these d) Hypothalamus
21. Which one is not correct? [4]
A. Man-Ureotelic
B. Birds-Uricotelic
C. Lizards-Uricotelic
D. Whale-Ammonotelic
a) Only D b) Only A
c) Only B d) Only C
22. The cavity of Bowman’s capsule contain: [4]
a) Blood plasma except blood protein b) Urea, glycogen and water
c) Concentrated blood d) Urea and water
23. A kidney stone is: [4]
a) Blockage by fat b) Deposition of sand in kidney
c) A salt such as oxalate crystal in pelvis d) CaCO3
24. If Henle’s loop were absent from man nephron, which of the following is to be expected? [4]
a) There will be no urine formation b) The urine will be more concentrated
c) The urine will be more dilute d) There will be hardly any change in the
quality and quantity of urine formed
25. We can produce concentrated/dilute urine. This is facilitated by a special mechanism. Identify the mechanism: [4]
a) Reabsorption/ Secretion in DCT b) Reabsorption from PCT
c) Reabsorption from Collecting Duct d) Counter current mechanism in Henle’s
loop/Vasa recta
26. Ornithine cycle is related to: [4]
a) Respiration b) Excretion
c) Nutrition d) Digestion
27. Diuresis is a condition, which is characterized by? [4]
a) Increase in urine volume b) Increased sugar excretion
c) Decrease in ionic balance d) Decrease in urine volume
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28. Renal columns of Bertini are found in the kidney of man for the collection of: [4]
a) None of these b) Urine
c) Water d) Glomerular filtrate
29. Excretion in cockroach takes place by: [4]
a) Malpighian tubules b) Coxal glands
c) Nephridia d) Green gland
30. Mark the correct statement: [4]
A. Vasa recta is lacking in cortical nephrons
B. Maximum number of nephrons in kidney are juxta-medullary type
C. PCT of many nephrons open into collecting tubule
D. All of these
a) B b) C
c) D d) A
31. Excretory product of mammals is: [4]
a) Uric acid b) Urea
c) Ammonia d) TMO
32. Renin is secreted by: [4]
a) Cortex b) Juxtaglomerular apparatus (JGA)
c) Medulla d) Podocytes
33. Match the following: [4]
'A' 'B'
(A) Loop of Henle 1. Carries blood into the kidney
(B) Renal artery 2. Area where a considerable amount of reabsorption takes place
(C) Proximal convoluted tubule 3. Main area of secretion
(D) Glomerulus 4. Filtration of blood
(E) Distal convoluted tubule 5. Plays a role in concentration of urine
The correct pairing sequence is:
a) None of these / A, B, C, D, E b) 1, 5, 3, 4, 2 / A, B, C, D, E
c) 5, 1, 2, 4, 3 / A, B, C, D, E d) 5, 1, 2, 3, 4 /A, B, C, D, E
34. Urea synthesis takes place in: [4]
a) Kidney b) Alimentary canal
c) Urinary bladder d) Liver
35. Which of the following factors is responsible for the formation of concentrated urine? [4]
a) Low levels of antidiuretic hormone. b) Hydrostatic pressure during glomerular
filtration.
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c) Maintaining hyperosmolarity towards inner d) Secretion of erythropoietin by
medullary interstitium in the kidneys. Juxtaglomerular complex.
36. Match the terms given in Column I with their physiological processes given in Column II and choose the correct [4]
answer:
Column I Column II
(A) Proximal convoluted tubule (i) Formation of concentrated urine
(B) Distal convoluted tubule (ii) Filtration of blood
(C) Henle’s loop (iii) Reabsorption of 70-80% of electrolytes
(D) Counter-current mechanism (iv) Ionic balance
(E) Renal corpuscle (v) Maintenance of concentration gradient in medulla
a) (A)-(iii), (B), (C)-(iv), (D)-(v), (E)-(ii) b) (A)-(iii), (B)-(v), (C)-(iii), (D)-(ii), (E)-(i)
c) (A), (B)-(iii), (C)-(ii), (D)-(v), (E)-(iv) d) (A)-(iii), (B)-(iv), (C)-(i), (D)-(v), (E)-(ii)
37. Glomerular capillaries are: [4]
a) Arterial as well as venous b) Purely arterial
c) Purely venous d) Portal only
38. Which of the following is not a part of renal tubule? [4]
a) Collecting tubule b) Bowman’s capsule
c) Glomerulus d) Henle’s loop
39. Match the item given in column - I with those in column - II and select the correct option given below : [4]
Column - 1 Column-II
(I) Glycouria (i) Accumulation of uric acid in joints
(II) Gout (ii) Mass of crystallised salts within the kidney
(III) Renal calculi (iii) Inflammation in glomeruli
(IV) Glomerular nephritis (iv) Presence of glucose in urine
a) (I)-(i), (II)-(ii), (III)-(iii), (IV)-(iv) b) (I)-(iv), (II)-(i), (III)-(ii), (IV)-(iii)
c) (I)-(ii), (II)-(iii), (III)-(i), (IV)-(iv) d) (I)-(iii), (II)-(ii), (III)-(iv), (IV)-(i)
40. Select option which correctly identifies given figure and gives their characteristics and /or functions? [4]
a) All of the these b) Malpighian corpuscle-Ultra filtration
c) Malpighian body-Filtration of blood d) Renal corpuscle-Glomerular filtration
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41. In Prawn, excretion is carried out by: [4]
a) Malpighian tubules b) Protonephridia
c) Green glands d) Flame cells
42. Absorption of Na+ and K+ ions does not occur in: [4]
a) Distal convoluted tubul b) Loop of Henle
c) Bowman's capsule d) Proximal convoluted tubule
43. The basic functional unit of the human kidney is: [4]
a) Henle’s loop b) Nephron
c) Glomerulu d) Renal tubules
44. Loop of Hehle is primarily meant for absorption of: [4]
a) Urea b) Glucose
c) Water d) Potassium
45. In which one of the following organism its excretory organs are correctly stated? [4]
a) Earthworm - Pharyngeal, integumentary and b) Humans - Kidneys, sebaceous glands and
septal nephridia tear glands
c) Frog - Kidney, skin and buccal epithelium d) Cockroach - Malpighian tubules and enteric
caeca
46. Match the items of column I with those of column II: [4]
Column I Column II
(A) Ammonotelism (i) Birds
(B) Bowman’s capsule (ii) Water reabsorption
(C) Micturition (iii) Bony fish
(D) Uricotelism (iv) Urinary bladder
(E) ADH (v) Renal tubule
a) (A)-(iii), (B)-(v), (C)-(iv), (D)-(i), (E)-(ii) b) (A)-(i), (B)-(v), (C)-(ii), (D)-(iii), (E)-(iv)
c) (A)-(iii), (B)-(v), (C)-(ii), (D)-(i), (E)-(iv) d) (A)-(v), (B)-(iii), (C)-(ii), (D)-(i), (E)-(iv)
47. The projections of renal pelvis are called: [4]
a) Calyces b) Hiluses
c) Renal columns d) Medullary pyramids
48. The maximum amount of electrolytes and water (70 - 80 percent) from the glomerular filtrate is reabsorbed in [4]
which part of the nephron?
a) Proximal convoluted tubule b) Descending limb of loop of Henle
c) Ascending limb of loop of Henle d) Distal convoluted tubule
49. The following substances are the excretory products in animals. Choose the least toxic form among them: [4]
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a) Carbon dioxide b) Ammonia
c) Urea d) Uric acid
50. Which of the following would help in prevention of diuresis? [4]
a) Decrease in secretion of renin by JG cells b) More water reabsorption due to
undersecretion of ADH
c) Reabsorption of Na+ and water from renal d) Atrial natriuretic factor causes
tubules due to aldosterone vasoconstriction
51. Juxtaglomerular apparatus is formed by cellular modification in the: [4]
a) Efferent arteriole and PCT b) Afferent arteriole and PCT
c) Afferent arteriole and DCT d) Efferent arteriole and DCT
52. Human urine as compared to human blood is normally: [4]
a) Hypotonic b) Isotonic
c) All of these d) Hypertonic
53. Trimethylamine is the excretory product in: [4]
a) Molluscs b) Freshwater fishes
c) Amphibious d) Marine teleost
54. Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies [4]
them and gives their characteristics and/or functions :
a) B-Pelvis-broad funnel shaped space inner to b) A-Adrenal gland-located at the anterior part
hilum, directly connected to loops of Henle of kidney. Secrete Catecholamines which
stimulate glycogen breakdown
c) C-Medulla - inner zone of kidney and d) D-Cortex - outer part of kidney and do not
contains complete nephrons contain any part of nephrons
55. Glomerular hydrostatic pressure is present in: [4]
a) Glomerulus of uriniferous tubule b) Malpighian tubule
c) Tubule of kidney d) Bowman’s capsule
56. Which type of kidneys are found in amphibian? [4]
a) Metanephric b) Holonephric
c) Pronepbric d) Mesonephric
57. The yellow colour of urine of vertebrates is due to: [4]
a) None of these b) Urochrome
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c) Chromatophores d) Cholesterol
58. Which of the following accessory excretory structure eliminates NaCl, lactic acid, and urea? [4]
a) Sebaceous gland b) Liver
c) Sweat gland d) Kidney
59. Which one of the following statements is incorrect? [4]
A. Birds and land snails are uricotelic animals
B. Mammals and frogs are ureotelic animals
C. Aquatic amphibians and aquatic insects are ammonotelic animals
D. Birds and reptiles are ureotelic
a) Only B b) Only C
c) Only A d) Only D
60. Occurrence of excess urea in blood due to kidney failure is: [4]
a) Urochrome b) Ureotelism
c) Uraemia d) Uricotelism
61. Presence of glucose in urine is called: [4]
a) Galactosemia b) Diabetes insipidus
c) Diabetes mellitus d) None of these
62. Protonephridia are present in: [4]
a) Rotifers b) All of these
c) Planaria d) Amphioxus
63. The reabsorption of water in the kidneys is under the control of a hormone: [4]
a) ADH b) ACTH
c) LH d) STH
64. The retroperitoneal kidney is: [4]
a) Kidney covered by peritoneum on dorsal b) Kidney covered by peritoneum on ventral
side side
c) Kidney uncovered by peritoneum on ventral d) Kidneys of fish
65. Urine output is reduced by: [4]
a) ACTH b) LH
c) Vasopressin d) Rennin
66. The glomerular filtrate contains: [4]
a) Plasma minus proteins b) Plasma minus cells and proteins
c) Blood minus proteins d) Blood minus cells and proteins
67. Kidneys are not the only organs of excretion; their work is supplemented by: [4]
a) Intestine b) Liver
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c) Skin d) Lungs
68. Which one of the following characteristics is common both in humans and adult frogs? [4]
a) Internal fertilization b) Nucleated RBCs
c) Four- chambered heart d) Ureotelic mode of excretion
69. In the kidney, glucose is mainly reabsorbed in: [4]
a) Distal convoluted tubules b) Proximal convoluted tubules
c) Loop of Henle d) Bowman’s capsule
70. Arrange processes of formation of urine in the kidney: [4]
a) Reabsorption, filtration and secretion b) Secretion, absorption and filtration
c) Filtration, secretion and reabsorption d) Glomerular filtration, reabsorption, and
tubular secretion
71. The two kidneys in human lie: [4]
a) Left kidney at a higher level than the right b) Right kidney at a higher level than the left
one one
c) At the level of ovaries d) At the same level
72. Malfunctioning of kidneys can lead to accumulation of urea in blood, a condition called, ________ which is [4]
highly harmful and may lead to kidney failure.
a) Glycosuria b) None of these
c) Ketonuria d) Uremia
73. Kidneys of man are present on either side of vertebral column at the level of: [4]
a) 10th thoracic to 3rd lumbar vertebrae b) 12th thoracic to 3rd lumbar vertebrae
c) 10th thoracic to 5th lumbar vertebrae d) 12th thoracic to 5th lumbar vertebrae
74. Indicate whether the following statements are true or false: [4]
i. Micturition is carried out by a reflex.
ii. ADH helps in water elimination, making the urine hypotonic.
iii. Protein-free fluid is filtered from blood plasma into the Bowman’s capsule.
iv. Henle’s loop plays an important role in concentrating the urine.
v. Glucose is actively reabsorbed in the proximal convoluted tubule.
a) (i)-F, (ii)-F, (iii)-T, (iv)-F and (v)-T b) (i)-T, (ii)-F, (iii)-T, (iv)-T and (v)-T
c) (i)-F, (ii)-F, (iii)-T, (iv)-T and (v)-T d) (i)-T, (ii)-F, (iii)-F, (iv)-T and (v)-F
75. Excretory product of mosquito is: [4]
a) Ammonia b) Uric acid
c) All of these d) Urea
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