Assertion: Light is very important factor in transpiration.
Reason: Light induces stomatal opening and darkness closing of stomata. Therefore, transpiration increases in light and decreases in dark.
(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.
(d) If both the Assertion and Reason are incorrect.
(a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
Explanation:
The parietal cytoplasm and perforated sieve plates help in the transport of photoassimilates that are required for photosynthesis. The parietal cytoplasm is the streaming of cytoplasm. The streaming cytoplasm moves throughout the cell, thus, helping in the transport of photoassimilates from one cell to another through the sieve plates.