Question

Assertion: Most minerals must enter the root by the active absorption into the cytoplasm of epidermal cells.

Reason : This transportation needs energy in the form of ATP. Some ions also move into the epidermal cells passively.

• A. If both assertion and reason are true and reason is correct explanation of assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false.
• D. If both assertion and reason are false.
  

Answer 1

The correct option is A If both assertion and reason are true and reason is correct explanation of assertion.

Active transport is a process that is required to move molecules against a concentration gradient. The process requires energy. For plants to take up mineral ions, ions are moved into root hairs, where they are in a higher concentration than in the dilute solutions in the soil. Some ions also move into the epidermal cells passively.

Therefore, both assertion and reason are true and reason is correct explanation of assertion