29. Which are narrower than others?
(A) Trachea (B) Bronchi (C) Bronchioles (D) Alveolar duct
29. Which are narrower than others? Read More »
28. Which one is not morphological property of lungs.
(A) Spongy (B) Hard (C) Pinkish (D) Soft
28. Which one is not morphological property of lungs. Read More »
27. The concentration of O2 in exhaled air is.
(A) 10% (B) 16% (C) 21% (D) 210%
27. The concentration of O2 in exhaled air is. Read More »
26. The concentration of CO2 in Exhaled air is.
(A) 1% (B) 2% (C) 3% (D) 4%
26. The concentration of CO2 in Exhaled air is. Read More »
25. Which of the gases is abundant in air?
(A) O2 (B) CO2 (C) N2 (D) AOT
25. Which of the gases is abundant in air? Read More »
24. Plants are different from Animals with regard to respiration in:
(A) They release CO2 (B) They gain their own O(C) They have mitochondria (D) Aerobic respiration occurs
24. Plants are different from Animals with regard to respiration in: Read More »
23. Which one is not the property of respiration?
(A) Catabolic process (B) Occur in all living cells (C) Light energy is required when it occur during day time (D) Chlorophyll is not required
23. Which one is not the property of respiration? Read More »
22. Which one is false about guard cells?
(A) Their inner wall is thicker (B) Their out wall is thinner (C) During opening of stomata they turgid (D) During closing they turgid
22. Which one is false about guard cells? Read More »
21. The right Mechanism during respiration is.
(A) CO2 in O2 out (B) CO2 in CO2 out (C) O2 in O2 out (D) O2 in CO2 out
21. The right Mechanism during respiration is. Read More »
20. Which one gas is not required during respiration?
(A) CO2 (B) CH4 (C) N2 (D) A
20. Which one gas is not required during respiration? Read More »