First slide

The Tissue System

Question

Assertion: Guard cells perform photosynthesis.
Reason: Every epidermal cell of leaf has chloroplasts.

Easy

A

Both assertion and reason are correct and reason correctly explains the assertion.
B

Both assertion and reason are correct but reason does not explain the assertion.
C

Assertion is correct but reason is incorrect
D

Both assertion and reason are incorrect.

Solution

Only guard cells of stomatal apparatus have chloroplasts and perform photosynthesis. Subsidiary cells and other epidermal cells usually do not have chloroplasts and do not perform photosynthesis.

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