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  • In brief state what happens when (a) dry apricots are left for some time 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?

In brief state what happens when

(a) dry apricots are left for some time 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) rheo leaves are boiled in water first and then a drop of sugar syrup is put on it?

(e) golgi apparatus is removed from the cell?

Answers (1)

Answer :

a) Dry apricot placed in water for some time swells due to endoosmosis and later transferred to sugar solution shrinks due to exosmosis (sugar solution acts as hypertonic to swelled apricot in water).

b) A red blood cell kept in concentrated saline solution loses water and shrinks because of exosmosis as the saline solution is hypertonic to Red blood cells cellular fluid. This leads to outward movement of water from cell.

 c) When the plasma membrane of a cell breaks down, all the cellular contents such as cytoplasm, cell organelles etc. scatters/spill out. Plasma membrane acts as boundary and packing structure which keeps its contents intact and differentiated from surroundings.

d) When rheo leaf is boiled first and then a drop of sugar syrup is put on it, osmosis does not take place due to death of plasma membrane.

e) Golgi complex: key function is modifying, packing and transferring the proteins syntheses by ribosomes. Thus when Golgi complex is removed, the cell function is hampered.

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