All the Following Are TRUE of Companion Cells EXCEPT That

question 49

Multiple Choice

All the following are TRUE of companion cells EXCEPT that they:

• A)fuse together to form the sieve plates of sieve-tube elements.
• B)provide direct nourishment for sieve-tube elements.
• C)regulate the movement of sugar into and out of sieve-tube elements.
• D)repair the plasma membrane of sieve-tube elements.
• E)are connected to sieve-tube elements via plasmodesmata.

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