Q.

What is the process by which plants exchange respiratory gases in their cells?

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a

Exhalation

b

Osmosis

c

Glycolysis

d

Diffusion

answer is B.

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Detailed Solution

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  • Diffusion is defined as the movement of individual molecules of a substance through a semipermeable barrier from an area of higher concentration to an area of lower concentration.
  • Plant roots are crucial for the exchange of breathing gases. 
  • The oxygen in the soil diffuses into the root hairs. 
  • Then it moves on to the plant's other cells. 
  • The root cells release carbon dioxide, which later diffuses into the soil. Therefore, the respiration of plants involves the roots. 
  • The diffusion process helps the exchange of respiratory gases in the cells of plants occur. 
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