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CBSE

Subject

Chemistry
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NEET Chemistry : Biomolecules

Multiple Choice Questions

21.

Which of the following statements is not correct?

  • Insulin maintains sugar level in the blood of ahuman body

  • Ovalbumin is a simple food reserve in egg-white

  • Blood proteins thrombin and fibrinogen are involved in blood clotting

  • Blood proteins thrombin and fibrinogen are involved in blood clotting



22.

The difference between amylose and amylopectin is

  • Amylopectin have 1 → 4 α-linkage and 1 → 6 α-linkage

  • Amylose have 1 → 4 α-linkage and 1 → 6 β-linkage

  • Amylose is made up of glucose and galactose

  • Amylopectin have 1 → 4 α-linkage and 1 → 6 β-linkage



23.

Which of the following does not reduce Fehling's solution?

  • Benzaldehyde

  • Formic acid

  • Glucose

  • Fructose



24.

Which one of the following proteins transports oxygen in the blood stream?

  • Myoglobin

  • Insulin

  • Albumin

  • Haemoglobin



25.

On hydrolysis of starch, we finally get

  • Glucose

  • Fructose

  • Both (a) and (b)

  • Sucrose



26.

In DNA, the complimentary bases are

  • adenine and thymine; guanine and cy1osine

  • adenine and thymine; guanine and uracil

  • adenine and guanine, thymine and cytosine

  • uracil and adenine; cytosine and guanine



27.

Which of the following is not reducing sugar?

  • Glucose

  • Fructose

  • Lactose

  • Sucrose



28.

Proteins are composed of

  • α- amino acids

  • carbohydrates

  • vitamins

  • mineral salts



29.

Which one of the following is a peptide hormone?

  • Glucagon

  • Testosterone

  • Thyroxin

  • Thyroxin



30.

The general molecular formula for disaccharide is

  • C12H22O11

  • C10H20O10

  • C12H20O10

  • C12H22O10



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