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Assertion (A) Most mineral must enter th...

Assertion (A) Most mineral must enter the root by the active absorption into the cytoplasm of epidermal cells.
Reason (R ) 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 and false.

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion (A)**: - The assertion states that "Most minerals must enter the root by the active absorption into the cytoplasm of epidermal cells." - This means that the majority of minerals are taken up by the roots through a process that requires energy. 2. **Analyzing the Process of Absorption**: - Active absorption is a process where substances are moved against their concentration gradient. This requires energy, typically in the form of ATP. - Roots absorb water and minerals from the soil, and this process is crucial for plant nutrition. 3. **Evaluating the Reason (R)**: - The reason states, "This transportation needs energy in the form of ATP. Some ions also move into the epidermal cells passively." - This indicates that while most minerals require energy for absorption, there are some ions that can enter the cells without the need for energy (passively). 4. **Conclusion**: - Both the assertion and the reason are true statements. - The reason provided correctly explains why the assertion is true: active transport requires ATP, and it is also true that some ions can enter passively. 5. **Final Answer**: - Since both statements are true and the reason correctly explains the assertion, the correct choice is **Option A**.
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