Question

Select all the correct responses about osmosis.
It is the movement of water
It requires cell energy
It is the movement of salt
Water moves down its concentration gradient
It used vesicles that fuse with the cell membrane
It only occurs in plant cells

Answer 1

The correct responses about osmosis are:

1. It is the movement of water.
2. Water moves down its concentration gradient.

The other statements are incorrect:

- **It requires cell energy**: Osmosis is a passive process and does not require energy.
- **It is the movement of salt**: Osmosis specifically refers to the movement of water, not salt.
- **It used vesicles that fuse with the cell membrane**: Osmosis does not involve vesicles; it is a direct movement of water across a semi-permeable membrane.
- **It only occurs in plant cells**: Osmosis occurs in all living cells, not just in plant cells.