Life Process

1. Digestion of food in human starts from which organ of digestive system?

2. The process in which transport of soluble products of photosynthesis occurs in plants is known
as:_________
3. What prevents the back flow of blood inside the heart during contraction?
4. The opening and closing of stomatal pore depends on _________________.
5. The filtration unit of kidneys are called _______________
6. In artificial kidney, which substance passes from the blood to the dialysis fluid?
7. Write the correct path of urine in human body.
8. Which part of nephron allows selective reabsorption of useful substances like glucose, amino acids,
salts and water into blood capillaries?
9. Name the enzyme that initiates digestion.
10. What is meant by emulsification of fat?
11. Mention the functions of the following : bile, pepsin, trypsin, mucus, HCl
12. List the enzymes present in the stomach, small intestine and their function.
13. Movement of material in and out of the body of Amoeba is done by the process of
_______________.
14. Carbohydrates which are not used immediately are stored in the form of _____________.
15. Energy derived from our food is stored in our body in the form of _____________.
16. 6CO2+12H2O ____________________
17.Absorption of light energy is done by _________.
18. What are the raw materials required for photosynthesis?
19. Gaseous exchange takes place through __________.
20. The opening and closing of the pore is a function of _______________.
21. The guard cell swells when water flows into them causing the stomatal pore to ____________.
22. _______________is an essential element used in the synthesis of protein.
23. ________________ is a long tube extending from the mouth to the anus.
24. Our mouth waters when we eat something we like, this is called as ___________ secreted by
_______.
25. _______ is a biological catalyst that helps in breaking the complex substance into simple form.
26. Saliva contains enzyme called ____________, that breaks down ________ to give _______.
27. Name the rhythmic movement that helps in the movement of the food particles through the
alimentary canal.
28. How does the structure of stomach help in the process of digestion?
29. The exit of food from stomach is regulated by a_________.
30. How is the small intestine designed to absorb digested food?
31. What is glycolysis?
32. What happens during fermentation?
33. Name the breakdown process that happens in the presence of oxygen and absence of oxygen.
34. Breakdown of pyruvate using oxygen takes place in the __________.
35. The release of energy in __________ process is greater than ______________-process.
36. The build up of ___________ in the ______________ causes __________due to sudden activities.
37. The energy released during cellular respiration is immediately used to synthesis ________.
38. Why is the breathing rate of aquatic animals greater that terrestrial organisms?
39. What is the function of tiny hairs and mucus present in the nostrils?
40. Mention the function of rings of cartilage.
41. Name the structural and functional unit of lungs.
42. How does the structure of alveoli help in the process of gaseous exchange?
43. What is the role of diaphragm in respiration?
44. Name the pigment that helps in the process of respiration.
45. What is residual volume of air?
46. How does smoking affect our lungs?
47. Write the pathway of flow of air in the respiratory track.
48. Draw the various pathways through which glucose breaks down.
49. Write the pathway through which the food travel in the alimentary canal.
50. What is the function of KOH?
51.Why heart is divided into chambers?
52. Deoxygenated blood from the body comes to the ________ of heart carried by _________.
53. Deoxygenated blood from the ____________pours down to ___________.
54. The valve present in between right atrium and right ventricle is______________.
56. The deoxygenated blood from the right ventricle moves to the __________ through ________.
57. The oxygenated blood from the lungs is carried to the ____________ of heart through ________.
58. The oxygenated blood from the ___________pours down to _________.
59. The valve present in between left atrium and left ventricle is______________.
60. The oxygenated blood from the left ventricle moves to the ________ through __________.
61. Name the valves present at the right ventricle and left ventricle.
62. What is the function of valves?
63. Name the different types of blood vessels.
64. What is double circulation?
65. Draw the pathway through which the blood flows in and out of the heart.
66. Define systemic and pulmonary circulation.
67. Why birds and mammals have four chambered heart?
68. Name the instrument used for measuring the blood pressure.
69. What is systolic pressure and diastolic pressure?
70. _________is the normal blood pressure range in human.
71. Write the difference between arteries, veins and capillaries.
72. Name the vitamin essential for blood clotting.
73. Write the function of platelets.
74. How does blood clotting take place?
75. What is lymph?
76. What is transpiration, transpiration pull and translocation?
77. Name the tissue that helps in carrying the water and minerals.
78. Name the tissue that helps in carrying the photosynthetic products.
79. Soil is the richest source of raw material like _______, _________ and __________
80. Absorption of nutrients from the soil takes place through ______________.
81. Name the xylem tissues that helps in conducting water.
82. The phloem transports __________ and ____ and these substances are stored in ____,______ and
_______.
83. Name the Phloem tissues that helps in carrying food and other substances.
84. Materials like _________ is transferred into phloem using _____________-.
85. Name the structural and functional unit of kidney.
86. Artificial removal of nitrogenous wastes from the human body in the event of kidney
failure is _______________.
87. Wastes concentrated in the tubules of Bowman’s capsule are called__________
88. In human each kidney has large numbers of filtration units called ___
89. What is the basic reason of urine production?
90. What is the function of ureter?
91. Name the blood vessel that brings oxygenated blood to the kidney.
92. Name the processes that takes place during urine formation.
93. The fluid that collects in the Bowman’s capsule is called as ____________
94. The biological process involved in the removal of the harmful metabolic waste from the body is
called as ________-.
95. Unicellular organism remove the waste by ____________.
96. Mention the function of urinary bladder.
97. List the factors that determines the amount of urine to be produced.
98. What is the function of urethra.
99. Draw the structure of kidney,
100. What are the factors that affect the function of kidney?
101. What is the drawback of dialysis?
102. In a normal adult the initial filtrate in the kidney is about __________.
103. The bladder is under the control of _____________ system.
104. After a vigorous exercise, you may experience cramps in your leg muscles. Why does
this happen?
105. Name the cartilaginous flap which closes the glottis to check the entry of food into it
during swallowing
Control and Coordination
1. Mention the receptors of smell and taste.
2. Difference between tropic and nastic movement.
3. Draw the diagram of Neuron.
4. What are growth regulators?
5. What are auxins?
6. What is TSH? Where is it produced?
7. Name the different regions of the brain and their parts.
8. What are the functions of mid brain?
9. What is cerebellum? Where is it present? What are its functions?
10. What is the importance of medulla oblongata?
11. What are the functions of spinal cord?
12. What is a reflex?
13. What is a synapse?
14. What are the three types of nerves?
15. What are receptors?
16. What are effectors?
17. What is meningitis?
18. What is the central nervous system composed of?
19. How are organs of the central nervous system protected?
20. Write Four major types of plant hormones and their functions
21. Why does the stem of a plant bend to one direction?
22. Give an example of chemotropism?
23. Definition and Function of thigmotropism
24. the Main thinking part of brain
25. Name the part which control blood pressure, salivation and vomiting control.
26. The substance that triggers the fall of mature leaves and fruits from plants is due to __________.
27. The plant hormone which is essential for cell division is _____________-.
28. Which part of brain controls the posture and balance of the body?
29. An automatic response to a stimulus which is not controlled by the brain is called ______.
30. _____ is the is the structural and functional unit of the nervous system.
31. Chemical messengers which control and coordinate in plants and animals are called ________.
32. List the functions of testosterone and oestrogen.
33. Write name of three hormones secreted by the pituitary gland.
34. What happens at the synapse between two neurons?
35. Which hormone is injected to a diabetic patient and why?
36. How does our body respond when adrenaline is secreted into the blood?
37. Where adrenal glands are located?
38. Where thyroid gland is located?
39. Which endocrine gland is called master gland? Why?
40. Why is pancreas a dual gland?
41. Identify the glands and mention hormones produced----------
a. Gland which prepares our body to function at maximum efficiency during anger or danger.
b. gland that helps in growth of bones and muscles.
c. gland that helps in growth of secondary sexual characters in males.
42. Endocrine glands are those which pour their secretions into _________________.
43. The box enclosing the brain is called the _____________.
44. The kind of nerve carrying impulses from the brain to a gland or a muscle is called ______.
45. Dwarfism results due to deficiency of which hormone?
46. Blood sugar level rises due to deficiency of which hormone?
47. Iodine is necessary for the synthesis of which hormone?
48. Name the endocrine gland associated with kidneys?
49. Which gland secretes digestive enzymes as well as hormones?
50. Which of the endocrine glands is unpaired?
How do Organisms Reproduce?
1. In unicellular organisms _______ or ________leads to the creation of new individuals.
2. Amoeba reproduces by the process called _________.
3. Name the organism that causes Malaria.
4. What is fragmentation?
5. Name the type of reproduction in which the organism is cut into many pieces that grows into
separate individual.
6. Name the type of reproduction by which Hydra and Yeast reproduces.
7. Name the different methods of vegetative propagation.
8. Write two advantages of vegetative propagation.
9. The small group of cells formed in the process tissue culture is _________.
10. In the process of grafting the lower portion of the plant is called as ______ and the upper portion
is called as ___.
11. The thread like structure that develops on the bread is called as _________.
12. The blob like structure present on the hyphae is called as __________.
13. The tiny structures present inside the blob like structure is called as _______________.
14. Give one example for the following mode of reproduction :
a. fission b. fragmentation c. regeneration d. budding e. spore formation
15. The creation of two new cells from one involves ________________.
16. __________ is useful for ensuring the survival of the species.
17. The reproductive part of the plant is the ___________.
18. Why are the flower bright coloured?
19. Name the different parts of the flower.
20. _______ and ________ are the reproductive parts of the flower which contains the germ cells.
21.______________and _________ have unisexual flowers.
22. What is bisexual and unisexual flower?
23. ___________is the male reproductive part of the flower that produces _________ that are
yellowish in colour.
24. ______ is the female reproductive part of the flower.
25. Name the parts of the ovary.
26 The fusion of the germ cells gives us the ___________.
27. Why is the stigma sticky in nature?
28. What is self pollination ?
29. What is cross pollination?
30. Name few pollinating agents.
31. _____________is a tubular structure that grows from the pollen grain and travels through the style
to reach the ovary.
32. After fertilization the zygote divides several times to form the _______________.
33. The tough coat developed by the ovary is converted into ______.
34. The ovary grows rapidly and ripens to form ____________.
35.What is germination?
36. What is puberty?
37. What is menopause and menarch?
38. Name the parts of the male reproductive system.
39. Name the parts of the female reproductive system.
40 . The formation of sperm takes place in the ___________.
41. The formation of ovum takes place in the _______--.
42. Why is the testis placed outside the body?
43. Name the hormone produces by the testis.
44. Sperm is carried by the _____.
45. Name the glands present along the path of the vas deference.
46. What is semen?
47.Write the function of prostate gland and seminal vesicle.
48. Name the hormone produced by the ovary.
49. The egg is carried from the ovary to the womb through a thin ____________ or _________.
50. The two oviducts unite into an elastic bag-like structure known as the _________.
51. ______________ is the site of fertilisation.
52. The uterus opens into the _______ through the _________
53. The sperms enter through the ______________ passage during sexual intercourse.
54. The embryo is ________ in the lining of the uterus where they continue to grow and develop
organs to become ____.
55. The embryo gets nutrition from the mother’s blood with the help of a special tissue called______.
56. Mention the changes that takes place in the uterus.
57. Mention the function of placenta.
58. What is gestation period?
59. What are the materials that pass through the placenta from the mother to the foetus?
60. What happens to the egg if it is not fertilised?
61. Name two bacterial and viral disease.
62. Write the advantages of barrier method.
63. What is the disadvantage of surgical method of contraception?
64. What are the side effects of taking oral pills?
65. What are the side effects of using Copper -T?
66. Define fertilization
67. Write the full form of IUCD and AIDS,
68. What is syngamy?
69. What is ovulation?
70. How will an organism be benefitted if it reproduces through spores?
71. What are the secondary sexual characteristics seen in males?
72. What are the changes seen in females at the time of puberty?
73. How does reproduction help in providing stability to population of species?
74. What could be the reasons for adopting contraceptive methods?
75. What is parturition?
76. What is plumule and radicle?
77. How do the oral pills function as contraceptives?

Heredity
1. What is heredity?
2. Name the plant on which Mendel performed his experiments?
3. Define variation?
4. Define a gene?
5. Write the expanded form of DNA?
6. A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants
because_____________.
7. If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant, (rr
YY) the seeds produced in F1 generation are ________________.
8. The maleness of a child is determined by___________.
9. A zygote which has an X-chromosome inherited from the father will develop into a ________.
10. In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short
plants in F2 is _____________.

Our Environment
1. What percentage of sunlight is captured by plants to convert it into food energy?
2. Flow of energy in an ecosystem is always
3. Depletion of ozone layer is mainly due to
4. First order consumers are:
5. Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic
level is known as______.
6. Only ____ % of the energy can be transferred from one trophic level to the next trophic level.
7. The UV radiation from the sun is likely to cause _____________ in human.
8. What is the role of bacteria and fungi in an ecosystem?
9. What are trophic levels?
10. Mention some sources of CFC‘s.
11. What would happen if there are no decomposers on earth?
12. How is ozone formed in the upper atmosphere?
13. What is a food chain?
14. What is food web?
15. Define biomagnifications.
16. What is 10% Law?
17. Which compounds are responsible for the depletion of ozone layer?
18. Expand UNEP
19. Name two aquatic ecosystems.
20. Name two terrestial ecosystems