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
The osmotic expansion of a cell kept in water is chiefly regulated by:
1. Mitochondria
2. Vacuoles
3. Plastids
4. Ribosomes
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 |