Identify the correct relationship with reference to water potential of a plant cell.
ψw = ψm + ψs + ψp
ψw = ψm + (ψs – ψp)
ψw = ψm – (ψs + ψp)
ψw = ψm – ψs – ψp
Additional Questions
|
The values osmotic potential π and pressure potential ρ of cells A, B, C and D are given below:
Identify the correct sequence that shows the path of movement of water from among the following: |
Answer | |||||||||||||||
|
Steroid hormones easily pass through the plasma membrane by simple diffusion because they |
Answer | |||||||||||||||
|
Assertion (A): K+ ion accumulation found in Nitella depends on its respiratory activity. Reason (R): Absorption of all ions in plants completely depends on the usage of metabolic energy. The correct answer is |
Answer | |||||||||||||||
|
Guttation is the result of |
Answer | |||||||||||||||
|
Humidity in atmosphere decreases rate of |
Answer | |||||||||||||||
|
Living cells placed in isotonic solution (0.9% saline) retain their size and shape. This is based on the concept of |
Answer | |||||||||||||||
|
Hydathodes are also called |
Answer | |||||||||||||||
|
When pea seeds and wheat grains are soaked in water, pea seeds showed more swelling than the wheat. The reason is |
Answer | |||||||||||||||
|
A soil sample is found to have 25% of its volume occupied by soil water. Of this, 10% is hygroscopic water and .the remaining is capillary water. What is the field capacity of this soil? |
Answer | |||||||||||||||
|
When the concentration of the soil solutes is low, the absorption of water is |
Answer |