Osmotic potential and water potential of pure water are respectively:
1. 0 and 0
2. 0 and 1
3. 100 and 0
4. 100 and 100
What shall be the water potential of a root hair cell absorbing water from the soil?
1. Zero
2. Less than zero
3. More than zero
4. Infinite
When a freshwater protozoan possessing a contractile vacuole, is placed in a glass containing marine water, the vacuole will:
1. Disappear
2. Increase in size
3. Decrease in size
4. Increase in number