Vacuoles

Q.

Do bacteria have vacuoles?

Q.

Membrane that covers the vacuole in a plant cell is called:

1. Tonoplast

2. Tonoplasm

3. Jacket

4. Cell Membrane

Q. Vacuole in a plant cell:

1. Lacks membrane and contains air
2. Lacks membrane and contains water and excretory substances
3. Is membrane-bound and contains storage proteins and lipids
4. Is membrane-bound and contains water and excretory substances

Q. Water soluble pigments found in plant cell vacuoles are :

1. Xanthophylls
2. Chlorophylls
3. Carotenoids
4. Anthocyanins

Q. Which of the following is not a function of vacuole in plant cell?

1. Storage
2. Waste disposal
3. Cell elongation and protection
4. Production of hydrogen peroxide

Q.

Do bacteria have vacuoles?

Q.

What is tonoplast?

1. Outer membrane of mitochondria

2. Inner membrane of chloroplast

3. Membrane boundary of the vacuole of the plant cells

4. Cell membrane of a plant cell

Q. The osmotic expansion of a cell kept in water is chiefly regulated by:

1. Mitochondria
2. Vacuoles
3. Plastids
4. Ribosomes

Q. What does the cell vacuole contain?

1. Only Water
2. Metabolic gases
3. Water and dissolved substances
4. Cytoplasm

Q. Most of water, in mature plant cells occurs in

1. nucleus
2. cell wall
3. vacuoles
4. cytoplasm

Q. Which organelle among the following contains cell sap?

1. Ribosomes
2. ER
3. Mitochondria
4. Vacuole

Q. Vacuoles in cyanobacteria help the cells float in water by

1. absorbing water
2. expelling water out
3. storing gas
4. storing enzymes