Question

Question 1. All organisms are made of small microscopic units which cannot be seen with the naked eyes, called (a) animals (b) cells (c) tissues (d) organs Answer Question 2. Organisms get energy through (a) food (b) eating (c) sleeping (d) none of these Answer Question 3. Cellular respiration is carried out in the (a) cells (b) organs (c) tissues (d) muscles Answer Question 4. The process of breakdown of food in the cell is known as (a) breakdown process (b) cellular respiration (c) food breakdown (d) none of these Answer Question 5. An example of aerobes is (a) cat (b) dog (c) human being (d) all of these Answer Question 6. When breakdown of glucose occurs with the use of oxygen, it is called (a) anaerobic respiration (b) aerobic respiration (c) regular respiration (d) all of these Answer Question 7. Name the type of respiration which causes muscle cramps. (a) Aerobic respiration (b) Anaerobic respiration (c) Both (a) and (b) (d) None of these Answer Question 8. Name the term which means ‘taking in of air rich in oxygen into the body’. (a) Exhalation (b) Inhalation (c) Breathing (d) Respiration Answer Question 9. Which gas is given out during exhalation? (a) Oxygen (b) Nitrogen (c) Carbon dioxide (d) All of these Answer Question 10. The gills help the fish to (a) take in oxygen from air (b) take in oxygen dissolved in water (c) absorb nutrients present in water (d) release waste substance in water Answer Question 11. Yeast are used to make (a) curd (b) wine and beer (c) bakery items (d) both (b) and (c) Answer Question 12. Earthworms breathe through (a) skin (b) legs (c) trachea (d) nose Answer Question 13. The organ through which fishes breathe is (a) nose (b) gills (c) skin (d) spiracles Answer Question 14. In the cells, oxygen is used to break down glucose into (a) carbon dioxide, water and energy (b) fats (c) alcohol, carbon dioxide and energy (d) lactic acid, water and energy Answer Question 15. Cockroaches breathe by using an organ called (a) nose (b) tracheae (c) both (a) and (b) (d) none of these Answer Question 16. The most common substrate for respiration is (a) fats (b) amino acids (c) glucose (d) sucrose Answer Question 17. Organism which respires in the absences of oxygen is called a/an (a) microbe (b) anaerobe (c) aerobic (d) none of these Answer Question 18. During inspiration or inhalation, in lungs (a) volume decreases, pressure increases (b) volume increases, pressure decreases (c) volume decreases, pressure decreases (d) volume increases, pressure increases Answer Question 19. Insects have a special network of tubes called (a) tracheae (b) gills (c) spiracles (d) lungs Answer Question 20. The major source of oxygen for the aquatic animals is (a) atmosphere (b) water (c) soil (d) none of these Answer Question 21. Primary organ of human respiratory system is (a) lung (b) liver (c) heart (d) pharynx Answer Question 22. When breakdown of glucose occurs in the presence of oxygen, the respiration is called (a) anaerobic (b) microbe (c) aerobic (d) none of these Answer Question 23. The tracheal tubes have openings called (a) trachea (b) gills (c) lungs (d) spiracles Answer Question 24. The process of breakdown of food in the cell with the release of energy is called (a) cellular respiration (b) aerobic respiration (c) anaerobic respiration (d) none of these Answer Question 25. In earthworm, the exchange of gases occurs through (a) lungs (b) moist skin (c) gills (d) trachea Answer Question 26. Plants breathe through tiny pores in the leaves called (a) stomata (b) leaf blade (c) pores (d) trachea Answer Question 27. Which of the following animals breathe through skin as well as through lungs? (a) Fish (b) Earthworm (c) Cockroach (d) Frog Answer​

Answer 1

Explanation:

trachea (b) gills (c) lungs (d) spiracles Answer Question 24. The process of breakdown of food in the cell with the release of energy is called (a) cellular respiration (b) aerobic respiration (c) anaerobic respiration (d) none of these Answer Question 25. In earthworm, the exchange of gases occurs through (a) lungs (b) moist skin (c) gills (d) trachea Answer Question 26. Plants breathe through tiny pores in the leaves called (a) stomata (b) leaf blade (c) pores (d) trachea Answer Question is to