AIIMS 2018 Botany Active Transport Assertion Reason Question
Assertion: In active transport, movement of substance takes place from lower to higher concentration Reason: Transpiration is natural process
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not correct explanation of A
A is true but R is false
A and R are false
Correct Answer
Detailed Explanation
Active transport is a process that moves substances against their concentration gradient, specifically from an area of lower concentration to an area of higher concentration, which is accurately stated in the assertion. The reason provided, that transpiration is a natural process, is true but does not explain the mechanism of active transport, making option A the only correct choice. Options B and C are incorrect because they misinterpret the relationship between the assertion and the reason, while option D is incorrect as both statements are indeed true. Understanding these concepts is crucial, as active transport is essential for processes like nutrient uptake in cells, where substances such as ions (e.g., Na⁺, K⁺) are moved against their gradients.
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