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Isotonic, hypotonic solutions, Hypertonic solutions

What is plasm...

Question

What is plasmolysis?

A

Multiplication of cell

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B

Contraction of cell protoplast

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C

Expansion of cell protoplast

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D

Cell death

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Solution

The correct option is B
Contraction of cell protoplast

Plasmolysis is the process in which the protoplast shrinks due to a prolonged external hypertonic environment. This happens due to exosmosis of water.

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Q. Protoplast is a cell

Q. Given below are a few statements regarding somatic hybridisation. Choose the correct statements.
(i) Protoplasts of different cells of the same plant are fused.
(ii) Protoplasts from cells of different species can be fused.
(iii) Treatment of cells with cellulase and pectinase is mandatory
(iv) The hybrid protoplast contains characters of only one parental protoplast.

Q. Given below are a few statements regarding somatic hybridization. Choose the correct statements.
(i) protoplasts of different cells of the same plant are fused
(ii) protoplasts from cells of different species can be fused
(iii) treatment of cells with cellulase and pectinase is mandatory
(iv) the hybrid protoplast contains characters of only one parental protoplast.

Q. What occupies space between the cell wall and the shrunken protoplast in a plasmolysed cell?

The pressure which the cell wall exerts on cell protoplast is known as ___

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