Question

describe the process of breathing and respiration in :-
(i) cockroaches
(ii) stems of plants .​

Answer 1

Answer:

In cockroach, respiration occurs through spiracles – a small opening on the sides of its body. ... When oxygen-rich air enters into the body of the cockroach via spiracles into the tracheal tubes, it diffuses into various tissues and cells of the body.

Respiration In Stems

The air in case of stem diffuses into the stomata and moves through different parts of the cell to respire. During this stage, the carbon dioxide liberated is also diffused through the stomata. Lenticels are known to perform gaseous exchange in woody or higher plants.

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Answer 2

Answer:

i)Cockroaches- In cockroach, respiration occurs through spiracles – a small opening on the sides of its body. ... When oxygen-rich air enters into the body of the cockroach via spiracles into the tracheal tubes, it diffuses into various tissues and cells of the body. Here, oxygen is used up to liberate energy.

ii)Stems of plants- The air in case of stem diffuses into the stomata and moves through different parts of the cell to respire. During this stage, the carbon dioxide liberated is also diffused through the stomata.

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