Question

class 7

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Answer 1

Explanation:

1 The respiratory organ of cockroach is referred to as tracheae. The trachea is a dense array of a network of air tubes found in the internal system. ... 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.

2

The process of respiration in plants involves using the sugars produced during photosynthesis plus oxygen to produce energy for plant growth. ... Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called "aerobic respiration".

3. The main difference between photosynthesis and cellular respiration is that photosynthesis is an anabolic process, where the synthesis of organic compounds occurs, storing energy whereas cellular respiration is a catabolic process, where the stored organic compounds are utilized, producing energy.

4. Breathing involves inhale of oxygen from the atmosphere into the lungs and exhale of carbon dioxide from the lungs into the atmosphere ; whereas cellular respiration involves breakdown of glucose into carbon dioxide and water in living cells, releasing energy.