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Plant And Animal Tissues — BIOLOGY STD 7 — Question

ICSE BoardEnglish MediumSTD 7BIOLOGYPlant And Animal Tissues3 Marks
Question
Write three differences between the two principal vascular tissues found in plants.
✓

Answer

Xylem
  1. Transports water and minerals absorbed by the roots of other plant parts.
  2. Consists mainly of dead cells.
  3. Conduction is unidirectional i.e. only upwards from the roots.

Phloem
  1. Conducts food manufactured in the leaves to other plant parts.
  2. Consists mainly of living cells.
  3. Bidirectional conduction i.e. both upwards and downwards from the leaves.

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