When epidermal peeling of Tradescantia is placed in a strong sugar solution and the cell content contract away from the cell wall. This phenomenon is called as

Hydrolysis

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Plasmolysis

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Deplasmolysis

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None of the above

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Solution

The correct option is B Plasmolysis
Plasmolysis occurs when water moves out of the cell due to the process of exosmosis and cell cytoplasm shrivels and leaves the cell wall. It occurs when a cell is placed in a hypertonic solution, whereas deplasmolysis occurs when a cell is placed in a hypotonic solution.
So, the correct answer is option B.

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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
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(1) only epidermal cells
(2) only guard cells
(3) guard cells and epidermal cells
(4) guard cells, epidermal cells and stoma

The following diagram represents a plant cell after being placed in a strong sugar solution.

Guidelines 1 to 5 indicate the following:

(1) Cell Wall, (2) Strong Sugar Solution,

(3) Protoplasm (4) Large vacuole,

(5) Nucleus

(a) What is the state of the cell shown in the diagram?

(b) Name the structure which acts as a selectively permeable membrane.

(c) If the cell had been placed in distilled water instead of strong sugar solution, which feature would not have been seen?

(d) Name any one feature of this plant cell which is not present in an animal cell.

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