Question

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Leaves of plants are green.
Reason (R): Plants contain Chromoplast, the green pigment. In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

In biology, remember: chlorophyll (in chloroplasts) gives green color, while chromoplasts give yellow, orange, or red colors. Do not confuse these terms in exams.

Answer 1

The Correct Option is C

Concept: This is an Assertion–Reason type question. To solve such questions, we must:
• Check whether Assertion (A) is true or false.
• Check whether Reason (R) is true or false.
• If both are true, verify whether (R) correctly explains (A).

Step 1: Analyze Assertion (A). \[ \text{Leaves of plants are green.} \] This statement is true. Leaves appear green because they contain a pigment called chlorophyll, which reflects green light and absorbs red and blue wavelengths during photosynthesis.

Step 2: Analyze Reason (R). \[ \text{Plants contain Chromoplast, the green pigment.} \] This statement is incorrect. The green pigment responsible for the green color of leaves is chlorophyll, which is present in chloroplasts, not chromoplasts. Chromoplasts are plastids responsible for storing pigments like carotenoids, which give yellow, orange, or red colors (e.g., in fruits and flowers), not green.

Step 3: Compare Assertion and Reason.
• Assertion (A) is correct.
• Reason (R) is incorrect because it wrongly identifies chromoplast instead of chloroplast and chlorophyll.

Step 4: Final conclusion. Since Assertion is true but Reason is false, the correct answer is: \[ \boxed{(A)\ \text{is correct but (R) is not correct}} \]