Q21 of 360 Page 110

Who do plant cells posses large sized vacuole?

Plant cells posses large sized vacuole because it performs following functions in plant cells:

(i) Vacuole helps in osmoregulation in a cell.


(ii) It stores toxic metabolic by-products or end products of the plant cell.


(iii) It helps in maintaining turgidity of the cell.


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Which cell organelle control most of the activities of the cell?

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Which kind of plastid is more common in (a) Root of the plant, (b) Leaves of the plant, (c) Flowers and fruits,

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How are chromatin, chromatid and chromosome related to each other.

 23

What are consequences of the following conditions?

(a) A cell having higher water concentration than the surrounding medium.


(b) A cell containing low water concentration than the surrounding medium.


(c) A cell having equal water concentration to its surrounding medium.