Question
a. Identify A and B cells.
b. What will happen if B cells are kept in hypotonic solution?
c. What will happen if A cells are kept in hypertonic solution?
a. Identify A and B cells.
b. What will happen if B cells are kept in hypotonic solution?
c. What will happen if A cells are kept in hypertonic solution?
✓
Answer
a. A Cells-Turgid cells. B Cells-Plasmolysed cells.
b. If a B cell is placed in a hypertonic solution, the plant cell loses water and hence turgor pressure by plasmolysis: pressure decreases to the point where the protoplasm of the cell peels away from the cell wall, leaving gaps between the cell wall and the membrane and making the plant cell shrink and crumple.
c. When a fully turgid plant cell is placed in a hypertonic solution, water moves out, first from cytoplasm and then from vacuole. Cell membrane shrinks away from the cell wall. This phenomenon is known as plasmolysis.
b. If a B cell is placed in a hypertonic solution, the plant cell loses water and hence turgor pressure by plasmolysis: pressure decreases to the point where the protoplasm of the cell peels away from the cell wall, leaving gaps between the cell wall and the membrane and making the plant cell shrink and crumple.
c. When a fully turgid plant cell is placed in a hypertonic solution, water moves out, first from cytoplasm and then from vacuole. Cell membrane shrinks away from the cell wall. This phenomenon is known as plasmolysis.
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