Questions and Answers
Which part of the plant body is known as the protoxylem?
Stems
What happens to the end walls of a mature vessel cell?
They break down completely
Why does a fully mature xylem cell have no cytoplasm and nucleus?
To facilitate programmed cell death
Which type of cell is found in the xylem of gymnosperms?
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Which type of cell is found in the phloem of angiosperms?
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Which type of cell is associated with sieve tubes in angiosperms?
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Which type of cell in the phloem lacks a nucleus?
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