how does sieve tube manages to be living
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A sieve tube is made of sieve tubemembers, often abbreviated STM. Each STM is a living cell. They have to be alive because phloem transport only occurs in living cells with intact, functioning plasma membranes.
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hey buddy !! here's your answer....
✔️sieve tubes don't have a nucleus . their activities are controlled by nucleus of companion cells. they both are closely related . they are connected through pit fields. companion cells help in maintaining the pressure gradient of sieve tube cells .
hope it helps !! ❤️✌️
bonne journée !! ⭐⭐
✔️sieve tubes don't have a nucleus . their activities are controlled by nucleus of companion cells. they both are closely related . they are connected through pit fields. companion cells help in maintaining the pressure gradient of sieve tube cells .
hope it helps !! ❤️✌️
bonne journée !! ⭐⭐
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