Biology
Figures A and B show plant cells after being kept for some time in two different solutions. Solutions A and B are:
- A-Hypotonic and B-Hypertonic
- A-Hypertonic and B-Hypotonic
- A-Isotonic and B-Hypertonic
- A-Hypotonic and B-Isotonic
Answer
A-Hypertonic and B-Hypotonic
Reason — Water moves from its higher concentration (hypotonic) to its lower concentration (hypertonic) which is called osmosis. In figure A, water is moving out of cell which means the solution is hypertonic. In figure B, water is moving into the cell which means the solution is hypotonic.
Related Questions
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
Mary soaked some raisins in beakers containing sugar solution, distilled water, salt solution and sea water respectively. After a couple of days, she observed that raisins have changed their shapes. In which of the following solutions will the raisins become turgid ?
- Sugar solution
- Distilled water
- Salt solution
- Sea water
Surya transferred a fish commonly found in sea water into a pond. After some time, he noticed that the fish died. The possible reason(s) for this could be :
- Turgidity and Flaccidity
- Plasmolysis
- Plasmolysis and Flaccidity
- Turgidity
Assertion (A): Roots absorb water and mineral nutrients from the soil.
Reason (R): 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.