Question

. i.Write three distinguishing features between cells of meristematic and permanent tissues. ii. Name the components of phloem tissue and state each of its functions. ​

Answer 1

i)

Meristematic tissues
1 . these are undifferentiated.
2.these have high metabolic rates.
3.these are simple tissues.
4.these have dense cytoplasm.
5.these have no vacuoles.
6.these have less intercellular spaces.
7.these divide to form new cells.

_-_-_-_-_-_-_-_-
Permanent Tissues
1.these are differentiated.
2.these have low metabolic rates.
3.these are complex tissues.
4. These have thin cytoplasm.
5.these have huge vacuoles.
6.these have more intercellular spaces.
7.these are derived from the MERISTAMATIC TISSUES.
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ii)

Xylem :
Trachieds - Non living cells
Vessels. - Non living cells
Xylem Parenchyma - living cells
Xylem Fibres. - no living cells

Phloem :
Sieve tubes - No living cells
Companion cells - non living cells
Phloem Parenchyma - Living cells
Phloem Fibres - no living cells.