Plasmolysis in a plant cell is

Shrinkage of vacuoles

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Shrinkage of nucleus in salt solution

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Shrinkage of cytoplasm in hypertonic solution

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Shrinkage of cytoplasm in hypotonic solution

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Solution

The correct option is C Shrinkage of cytoplasm in hypertonic solution
Plasmolysis is a process in which cytoplasm of the cell loses the water, shrinks and cell membrane detaches from its cell wall when kept in hypertonic solution. This occurs due to exosmosis.
So, the correct answer is option C.

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Question 7
Plasmolysis in a plant cell is defined as

(a) break down (lysis) of the plasma membrane in hypotonic medium
(b) shrinkage of cytoplasm in a hypertonic medium
(c) shrinkage of nucleoplasm
(d) none of the above

Q. Arrange the following into its correct order of occurence.

i. plasmolysis
ii. movement of water out of cytoplasm
iii. shrinkage of protoplasm away from the cell wall
iv. movement of water out of vacuole
v. cell in hypertonic solution

Q. Which option shows correct pairs of Column - I and Column - II.

Column - I	Column - II
(i) Plasmolysis	(a) Phenomenon when a cell is placed in an isotonic solution
(ii) Cells turgidity	(b) Cytoplasm loses contact with the cell wall
(iii) Flaccid cell	(c) Phenomenon when a cell is placed in a hypotonic solution
(iv) Incipient plasmolysis	(d) Phenomenon when a turgid plant cell is placed in an hypertonic solution

Q. Assertion :Shrinkage of the protoplast of a cell occurs under the influence of hypertonic solution. Reason: Hypertonic solution causes plasmolysis.

Q. Assertion :A plant cell shrinks in hypertonic solution. Reason: In hypertonic solution, water moves out of the cells due to plasmolysis.

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Plasmolysis in a plant cell is

The correct option is C Shrinkage of cytoplasm in hypertonic solutionPlasmolysis is a process in which cytoplasm of the cell loses the water, shrinks and cell membrane detaches from its cell wall when kept in hypertonic solution. This occurs due to exosmosis. So, the correct answer is option C.

The correct option is C Shrinkage of cytoplasm in hypertonic solution
Plasmolysis is a process in which cytoplasm of the cell loses the water, shrinks and cell membrane detaches from its cell wall when kept in hypertonic solution. This occurs due to exosmosis.
So, the correct answer is option C.