Which of the following cell organelle is a major site for the synthesis of steroidal hormones?
| 1. | SER |
| 2. | Golgi bodies |
| 3. | Ribosomes |
| 4. | Peroxisome |
Why concentration of number of ions and other materials is higher in vacuole than cytoplasm?
| 1. | Vacuolar membrane is permeable for all substances |
| 2. | Tonoplast facilitates transport against concentration gradient |
| 3. | Vacuole is non-membrane structure |
| 4. | Vacuoles store and synthesize ATP to absorb ions and materials |