| (i) In insects, circulating body fluids serve to distribute oxygen to tissues. |
| (ii) Yeasts respire aerobically, therefore, they are used to make wine and beer. |
| (iii) Bronchitis is the inflammation of bronchi which may be caused on exposure to air pollutants. |
| (iv) In a healthy person, maximum capacity of lungs for inhaled air is 1500 mL. |
| (v) Sneezing expels the foreign particles from the inhaled air. |
A) Statements (i), (ii) and (iv) are incorrect, while statements (iii) and (v) are correct.
B) Statements (i), (ii) and (iii) are incorrect, while statements (iv) and (v) are correct.
C) Statement (ii) is incorrect, while statements (i), (iii), (iv) and (v) are correct.
D) Statements (ii) and (v) are incorrect, while statements (i), (iii) and (iv) are correct.
Correct Answer: A
Solution :
Insects have openings called spiracles on their bodies. Oxygen enters through these openings and reaches all tissues of the body through respiratory tubes called tracheae. Yeast is a unicellular organism that respires anaerobically to yield alcohol. Yeast is, therefore, used to make beer and wine. Capacity of human lungs for inhaled air in a healthy person is 4500 - 6000 mL.
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