Q14) What is the function of companion cells in the phloem? short answer
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Companion cells deliver ATP, proteins and other nutrients to sieve elements. Companion cells are ground tissue cells found within the phloem of flowering plants that manage the flow of nutrients through sieve tubes.
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Companion cells are parenchyma cells that function to load and unload material into the sieve tube member. Companion cells have a nucleus, while sieve tube members do not.
Sieve tube members are formed from phloem initials in conjunction with the companion cells.
Phloem initial with a large vacuole and a nucleus.
A companion cell forms associated with the sieve tube.
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