AP 7th Science Mock Test 2021 For Chapter – 11 : “ Respiration In Organisms ” Online Practice Test

1. The process of breathing in air is called ________ .
2. The process of breathing out air is called ________ .
3. This is released out along with carbon dioxide during respiration :
4. Find out the respiratory organ
5. These  help in exchange of gases in plants.
6. The respiratory organ in earth worm is
7. When frog is in burrows it respires with ______
8. Lenticels are present on the surface of ________ .
9. The scientist who did experiments with burning candle and mint sprig
10. Von Helmont discovered
11. What would happen if fish is kept out of water ?
12. It is trachea for cockroach. Then what is it for birds ?
13. Oxygen was discovered by
14. Oxygen was named by
15. Both plants and animals use _____ during respiration
16. These are used to test that the plants release carbon dioxide during respiration
17. What changes are observed in the lime water with which flowers or birds contacted ?
18. This is frequently used in the laboratory for testing the gases
19. Fixed air name is given by _______ .
20. i) What colour is seen in the boiling tube with lime water after blowing the air into it ?
ii) What would be the reason for that ?
21. What is essential for earth worm to breath oxygen through skin continuously ?
22. The following organs and lenticles help in exchanges of gases in plants
23. Fixed gas
24. Von Helmont conducted an experiment on
25. Oxygen
26. The given diagram reveals ..........
27. Name the part marked with '?'
28. Respiratory organs of the fish
29. Name the part marked with '?' that develop in tadpole larva of frog
30. Find out the respiratory organ of the given organism
31. Lime water turns into milky white by
32. Respiratory organs
33. What does the picture show ?
34. Match the following

A                                                B

1) Fish                      (       )       a) Skin
2) Frog                     (       )       b) Gills
3) Cockroach          (       )        c) Trachea
35. The process by which air goes in out of our body is called  _________ .
36. The number of times we breathe in and out air in _______ time is called respiration rate .
37. The air we breathe in fills our ________ .
38. The first step towards trying to find out what air contained was carried out by
39. The air we breathe in contains _________
40. What are the respiratory organs of mammals ?
41. Lungs are the respiratory organs in
42. Find out the respiratory organs in reptiles ?
43. Find out the respiratory organs in amphibians ?
44. Find out the respiratory organs in crabs ?
45. Which of the following are the respiratory organs in tadpole larva ?
46. Which of the following are the respiratory organs in fishes ?
47. Trachea are the respiratory organs in _______
48. Skin is the respiratory organ in _______
49. Skin is the respiratory organ in _______
50. Skin is the respiratory organ in _______
51. The openings which allow _______ into the insect body are called spiracles .
52. The gas released in expiration is _______
53. The gas inhaled in inspiration is ________
54. Amount of Oxygen present in inhaled air _______(in ml).
55. Amount of Oxygen present in exhaled air _______(in ml).
56. Amount of Carbon dioxide present in exhaled air _______(in ml).
57. Amount of Carbon dioxide present in inhaled air _______(in ml).
58. Amount of Nitrogen + other gases present in inhaled air _______(in ml).
59. Amount of Nitrogen + other gases present in exhaled air _______(in ml).
60. How much oxygen retained in our body after exhalation ?
61. The percentage of carbon dioxide is _______ in exhaled air than inhaled air .
62. Which gas we inhale more in inhaled air ?
63. The process which involves the exchange of gases is called _________ .
64. The organs which does not involves the exchange of gases is called _________ .
65. During inspiration air enters into lungs due to ________ .
66. Roots respire through
67. Which of the following animals breathe through their skin and lungs ?
68. What happens to lime water , when we exhale air into it ?
69. Almost plants respire through _________ .
70. The respiratory organ that is spiracle is present in _________ .
71. Find the odd one out ?
72. Frog undergoes deep burrow and sleep ______ a year.
73. What is the aim of this experiment ?
74. What are the equipment needed for the experiment of proving carbon dioxide is releasing during respiration ?
75. Aerator used in aquarium supplies ______

 

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