12. NCERT objective type questions

6 m.

Choose the best answer:

1. Select the odd one out

Molecules soluble in organic solvents can easily pass through the membrane.
The movement of water across a semi-permeable membrane is affected by the amount of substances dissolved in it.
Membranes are made of organic molecules like proteins and lipids.
Plasma membranes contain chitin sugar in plants.

2. Cell arises from pre-existing cell was stated by

3. The only cell organelle seen in prokaryotic cell is

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