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 Multiple Choice QuestionsMultiple Choice Questions

141.

A phosphoglyceride is always made up of

  • only a saturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached

  • only an unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached

  • a saturated or unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached

  • a saturated or unsaturated fatty acid esterified to a phosphate group, which is also attached to a glycerol molecule


142.

Macromolecule chitin is

  • nitrogen containing polysaccharide

  • phosphorus containing polysaccharide

  • sulphur containing polysaccharide

  • simple polysaccharide


143.

The essential chemical components of many coenzymes are

  • proteins

  • nuclei acids

  • carbohydrates

  • vitamins


144.

One molecule of triglyceride is produced using

  • one fatty acid and one glycerol

  • one fatty acid and three glycerols

  • three fatty acids and three glycerols

  • three fatty acids and one glycerol


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145.

Glutenin is an important protein in

  • potato

  • wheat

  • soyabean

  • spinach


146.

Which one of the following is enriched with a non-reducing sugar?

  • Grapes

  • Germinating barley grains

  • Table sugar

  • Mother's milk


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147.

Which of the following statements is wrong for sucrose?

  • It is a disaccharide

  • It is a non-reducing sugar

  • It accumulates in the cytoplasm

  • It is comprised of maltose and fructose


D.

It is comprised of maltose and fructose

Sucrose is a disaccharide, mainly composed of fructose and glucose. It is a non-reducing sugar because it does not have a free aldehyde or ketone group. During the transportation of sucrose from source to sink through phloem it gets accumulated in the cytoplasm of the cell, after getting hydrolysed into glucose and fructose.


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148.

The protein component of a holoenzyme is known as

  • coenzyme

  • cofactor

  • prosthetic group

  • apoenzyme


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149.

Km is

  • product

  • enzyme

  • constant

  • unit


150.

Absorption of vitamin-B;» in human requires 'P' glycoprotein secreted from 'Q'. The correct choices of P and Q are

  • P - Extrinsic factor; Q - Stomach

  • P - Intrinsic factor; Q - Stomach

  • P - Intrinsic factor; Q - Small intestine

  • P - Exopolysaccharide; Q - Small Intestine


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