Multiple choice

Which of the following is required by plants for the active uptake of minerals?

  1. Respiration

  2. Expenditure of energy

  3. Root metabolism

  4. Photophosphorylation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Active uptake of minerals against their concentration gradient requires energy expenditure, typically in the form of ATP. This is fundamental to active transport mechanisms. While respiration produces this energy and root metabolism supports the process, the direct requirement for mineral uptake is the energy itself. Photophosphorylation occurs in chloroplasts for photosynthesis, not mineral absorption.

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