Isotonic, Hypotonic Solutions, Hypertonic Solutions

Q.

What will happen if a cell is kept in a hypertonic solution for a long time?

1. Cell burst

2. No change in shape

3. Swells up

4. Show plasmolysis

Q.

The cell wall is the most rigid component of the cell.

1. True

2. False

Q.

What will happen if we put an animal cell into a sugar or salt solution?

1. Cell shrinks

2. Cell swells

3. None of these

4. Cell bursts

Q.

If an animal cell is placed into a solution whose concentration of dissolved substances is higher than that inside the cell -

1. The cell will swell

2. The solution is described as hypertonic

3. Both (b) and (c) are correct

4. The cell will shrivel

Q.

If a red blood cell (intracellular concentration of $0.9\%$ salt) was placed into a test tube containing $10\%$ salt solution, what would happen to it?

1. None of these

2. The red blood cell would shrink as it loses water to the salt solution in the test tube.

3. Nothing - the solution is isotonic to the interior of the red blood cell

4. It would fill with water and burst.

Q.

What is plasmolysis?

1. Contraction of cell protoplast

2. Expansion of cell protoplast

3. Cell death

4. Multiplication of cell

Q.

Solutions A and B are separated by a semi-permeable membrane and water moves from A to B. Hence, solution B is

1. Hypertonic

2. Isotonic

3. Hypotonic

4. None of the above

Q.

Why doesn't a plant cell burst when placed in hypotonic condition?

1. Cell wall withstands the osmotic turgor pressure of the cell

2. The cell changes the salt concentration of the cytoplasm

3. The cell drains out excess water

4. The cell wall does not allow water into the cell

Q.

If a cell shrinks when placed in a solution, what will be the tonicity of the solution when compared to cell solution?

1. Cannot determine

2. Isotonic

3. Hypotonic

4. Hypertonic

Q. Match the response of the cells to the type of solutions in which they exhibit them.

1. cell shrinks
2. cell swells
3. no change