Plants possess two transport tissues: xylem and phloem.
(a)[2]
Describe and explain two ways in which the structure of xylem vessels is adapted for their function.
(b)[2]
Describe two differences between the vessels that carry phloem sap in flowering plants and the vessels that carry blood in mammals.
(c)[3]
Explain why the root hair cells in Fig. 6.1 contain more mitochondria than the other root cells shown.
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