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Asserion : Long distance flows of photo...

Asserion : Long distance flows of photoassimilates in plants occurs through seive tubes
Reason : Mature seive tubes have parietal cytoplasm and prforated seive plates

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
The functional unit for long distance translocation and signal distribution are sieve tube that consists of sieve elements which are elongated cell connected to each other via sieve plate to form a continuous tube system that spread out through the entire plant. Sieve plate is end wall containing large pores to provide a connection with adjacent sieve element.
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