Select the mismatch.
1. Gas vacuoles — Green bacteria Cells
2. Large central vacuoles — Animal cells
3. Protists — Eukaryotes
4. Methanogens — Prokaryotes
The osmotic expansion of a cell kept in water is chiefly regulated by
1. mitochondria
2. vacuoles
3. plastids
4. ribosomes
Vacuole in a plant cell:
1. | is membrane-bound and contains storage proteins and lipids
|
2. | is membrane-bound and contains water and excretory substances
|
3. | lacks membrane and contains air
|
4. | lacks membrane and contains water and excretory substances |
Which of the following is true for vacuole
(1)It is present in both plants and animals
(2)Central vacuole is present in plant
(3)It occupies 90% volume of the plants
(4)All of these
In plant cell the concentration of ions is more in
(1)cytoplasm
(2)vacuoles
(3)equal in both
(4)nucleus
The contractile vacuole
1. | is present in Amoeba | 2. | helps in osmoregulation |
3. | helps in excretion | 4. | All of the above |
The membrane of vacuole is called
1. plasma membrane
2. tonoplast
3. cytoplasm
4. tunicates
Select the wrong statement about eukaryotic cells.
1. They have well defined nucleus
2. Possess 70S ribosomes
3. May have a cell wall
4. No organelles are single membrane bound
What is a tonoplast?
1. outer membrane of mitochondria
2. inner membrane of mitochondria
3. membrane boundary of the vacuole of plant cell
4. cell membrane of plant cell
Which of the following pair of organelles does not contain DNA?
1. Nuclear envelope and Mitochondria
2. Mitochondria and Lysosomes
3. Chloroplast and Vacuoles
4. Lysosomes and vacuoles