IGCSE Biology
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IGCSE Chemistry
IGCSE Physics
IGCSE Biology
Tuesday, May 31, 2016
2.51 Describe the role of phloem in transporting sucrose and amino acids between the leaves and other parts of the plant
Phloem has living cells in form of a column
Has
companion cells
and a cytoplasm + cellulose cell wall
Companion cells very
metabolically active
Carries dissolved substances such as sucrose and amino acids within the plant
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