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Plant root cells also need oxygen to generate energy. So roots take up air from:
Question

Plant root cells also need oxygen to generate energy. So roots take up air from:

A.

air space between soil particles

B.

cytoplasm

C.

stomata

D.

water

Correct option is A

The correct answer is: (A) air space between soil particles

  • Plant roots take up oxygen from the air spaces between soil particles.
  • These air spaces contain oxygen that is necessary for cellular respiration in the root cells, enabling them to generate energy.
  • The oxygen from the soil air is absorbed through tiny pores in the root called root hairs.

Other option Explanation:

  • Cytoplasm: Oxygen is used within the cytoplasm, but not absorbed from it.
  • Stomata: Found on leaves, not roots, and responsible for gas exchange in aerial parts.
  • Water: Water provides nutrients but not the primary source of oxygen for root respiration.

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