Q4 of 52 Page 117

Which is the longest cell in human body?

Nerve cell is the longest in human body. It is about one meter long.

This is a diagram showing a nerve cell.

Give name of two organisms each that are

(i) Unicellular

(ii) Multicellular

Name the two cells which can change their shape?

Unicellular organisms differ from multicellular ones. How?

Name the molecules which contribute to the flexibility exhibited by the plasma membrane.

Questions · 52

5. The Fundamental Unit of Life

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