Biology
Two plant cells are placed in two different liquids and observed after 4-6 hours.
| Cell | Liquid | Change in the shape of plant cell |
|---|---|---|
| P | Water | Swollen |
| Q | Sugar solution | Shrunken |
Identify the correct pair of the processes happening in plant cells P and Q.
- P - Plasmolysis, Q - Deplasmolysis
- P - Plasmolysis, Q - Turgidity
- P - Exosmosis, Q - Endosmosis
- P - Endosmosis, Q - Exosmosis
Answer
P - Endosmosis, Q - Exosmosis
Reason — Plant cell P is placed in water, so the concentration of water molecules inside the cell is less than the surrounding, hence water molecules enter the cell causing the cell to swell up. Plant cell Q is placed in sugar solution, so the concentration of water molecules inside the cell is more than the surrounding, hence water will move out of the cell and as a result it will shrink.
Related Questions
Addition of salt to pickles is a method of killing the bacteria by :
- Imbibition
- Diffusion
- Deplasmolysis
- Plasmolysis
Root pressure can be measured by using :
- Sphygmomanometer
- Barometer
- Manometer
- Thermometer
Assertion. Roots absorb water and mineral nutrients from the soil.
Reason. Soil is the storehouse of all the essential minerals for photosynthesis that are absorbed by the plant through the roots of the plant by the process of diffusion.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Assertion. Diffusion is the process of free movement of liquid molecules only. It does not occur in gaseous state.
Reason. The main condition which regulates the process of diffusion is the concentration gradient and not the state of matter. It always occurs from higher to lower concentration.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.