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Question

Active uptake of minerals by root mainly depends on the-


A

Light

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B

Availability of carbon dioxide

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C

Availability of oxygen

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D

Temperature

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Solution

The correct option is C

Availability of oxygen


The correct option is C.

Explanation of the correct option:

Option C:

  1. Absorption that occurs against a concentration gradient is referred to as active absorption. Any material, such as a solution or solvent, must be transferred against the gradient of concentration with the use of energy.
  2. Through cellular respiration, the roots acquire their energy.
  3. Because the root cells are actively involved in the process, active absorption can be explained as the absorption of water by roots using adenosine triphosphate, which is created by the root.
  4. A form of plant tissue known as permanent tissue has finished growing and differentiating. The action of the roots themselves, including their metabolic energy, is required for active root absorption of nutrients. The aerobic respiration mechanism is used to extract energy, and oxygen is crucial for plants to ingest nutrients.

Explanation of the incorrect options:

Option A:

  1. Active uptake of minerals by root does not depend on the light availability

Option B:

  1. Active uptake of minerals by root does not depend on the availability of carbon dioxide

Option D:

  1. Active uptake of minerals by root does not depend on the temperature.

Final answer: Active uptake of minerals by root mainly depends on the availability of oxygen.


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