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Take a living tissue, grind it in trichl...

Take a living tissue, grind it in trichloroacetic acid using pestle and mortar, and then strain it, you would obtain two fractions : acid-soluble and acid-insoluble fraction. Acid-insoluble fraction does not contain

A

polysaccharides

B

nucleic acids

C

lipids

D

flavonoids and alkaloids.

Text Solution

Verified by Experts

The correct Answer is:
D
The acid-soluble pool represents roughly the cytoplasmic composition whereas the macromolecules from cytoplasm and oraganelles becomes the acid-insoluble fraction. Together they represent the entire chemical composition of living tissue of organism of cellular pool. All the compounds which are found in the acid-soluble pool, have their molecular weight ranging from approx. `18` to around `800` daltons (Da). The acid-insoluble fraction, has only four types of organic compounds i.e., proteins, nucleic acids, polysaccharides and lipid.
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Knowledge Check

  • Anhydrous acid cannot be obtained from aqueous solution by fractional distillation because :

    A
    It is soluble in water
    B
    It forms a constant boiling mixture with water
    C
    Its boiling point is very close to water
    D
    There is much difference in their boiling points

  • Anhydrous acid cannot be obtained from aqueous solution by fractional distillation because :

    A
    It is soluble in water
    B
    It forms a constant boiling mixture with water
    C
    Its boiling point is very close to water
    D
    There is much difference in their boiling points

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