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In brief state what happens when (a) D...

In brief state what happens when
(a) Dry apricots are left for sometime in pure water and later transferred to sugar solution?
(b) A red blood cell is kept in concentrated saline solution?
(c) The plasma-membrane of a cell breaks down?
(d) When Rheo leaves are boiled in water first and then a drop of sugar syrup is put on it, osmosis does not occurs, due to the death of the cells of the leaf. This shown that selective permeability is property of living plasma membrane.
(e) Golgi complex helps in the package, storage and transfer of proteins synthesised by ribosomes. Thus, when ribosomes are removed the cell will not function propertly.

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(a) When placed in pure wate, dry apricots swell up due to endosmosis. On being transferred to sugar solution, they shrink due to exosmosis.
(b) In concentrated salt solution, red blood cells shrink and give a shrivelled appearance (crenation).
(c ) Breaksown of plasma membrane will result in death of the cell as protoplasmic structures will get dispersed.
(d) Boiling shall kil the leaves. The dead leaves and their cells do not undergo plasmolysis.
(e) Formation of lysosomes, secretory vesiscles will stop. Glycolistion of lipids and proteins synthesized by ER for membrane biosynthesis will not occur.
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LAKHMIR SINGH & MANJIT KAUR-THE FUNDAMENTAL UNIT OF LIFE: CELL -QUESTIONS BASSED ON NCERT QUESTION BANK (EXAMPLAR PROBLEMS IN SCIENCE)
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