What are the constituents of phloem? Phloem is made up of four types of elements sieve tube, companion cells, phloem fibres and phloem parenchyma.
Answers
Answer:
The constituents of phloem are Sieve tubes, Companion cells, Phloem parenchyma, Phloem fibres.
Answer:
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Explanation:
Phloem
Phloem consists of living cells arranged end to end. Unlike xylem, phloem vessels contain cytoplasm, and this goes through holes from one cell to the next.
Phloem transports sucrose and amino acids up and down the plant. This is called translocation. In general, this happens between where these substances are made (the sources) and where they are used or stored (the sinks).
This means, for example, that sucrose is transported:
from sources in the root to sinks in the leaves in spring time
from sources in the leaves to sinks in the root in the summer
Applied chemicals, such as pesticides, also move through the plant by translocation.