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Please answer the attached. Please.... ... . .. . .......

Please answer the attached. Please.... ... . .. . .......

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Grade:12th Pass

2 Answers

Syed suha
49 Points
6 years ago
I think option a is correct!As you might be knowing that our sieve tube cells lack nucleus, so all the activities of sieve tube cells are controlled by the nucleus of companion cells so pressure gradient is also controlled by the nucleus of companion cells...Hope it helps...Thank you!
Parth Verma
49 Points
6 years ago
But I want to know why 2nd option in incorrect?
Please answer soon.

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