Biology for IGCSE & O level - Transport In Plants (Section 5 - No. 42)
What is the role of companion cells in phloem transport?
They transport sugars directly.
They provide metabolic support to sieve tube elements.
They create the pressure gradient in phloem.
They actively transport water into the phloem.
Explanation
Companion cells support sieve tube elements, providing metabolic functions.
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