Chemistry - Biomolecules

Buy RRB - ALP & Technicians Practice test pack

Question - 1

Consider the following statements
Enzymes and proteins can be correlated with each other in the following ways.
1. All proteins are enzyme.
2. All enzymes are protein.
3. All enzymes are not protein
4. All proteins are not enzyme.
Which of the statements given above are correct?

  • A 1 and 3
  • B 2 and 4
  • C 1, 2 and 3
  • D 2, 3 and 4

Question - 2

The function of enzymes in the living system is to

  • A transport oxygen
  • B provide inmunity
  • C Catalyse bio-chemical reactions
  • D provide energy

Question - 3

Consider the following statements
1. The sweetest of all sugar is fructose.
2. The disaccharide present in milk is lactose.
3. Starch is a polymer of glucose.
Which of the statements above is/are correct?

  • A Only 1
  • B Only 2
  • C 1 and 2
  • D 1, 2 and 3

Question - 4

consider the following
1. Nucleic acids
2. Carbohydrates
3. Proteins
A virus is made up of which of the above?

  • A 1 and 2
  • B 2 and 3
  • C 1 and 3
  • D 1, 2 and 3

Question - 5

Enzymes 

  • A accelerate bio-chemical reactions
  • B consist of amino acids
  • C have optimum activity at body temperature
  • D have all these properties

Question - 6

What is the bond between two amino acids in a protein called?

  • A Easter bond
  • B Glycosidic bond
  • C Peptide bond
  • D Phosphodiester bond

Question - 7

Consider the following statements
1. On hydrolysis proteins give amino acids.
2. The coagulation of protein is called denaturing.
3. A protein is best described as a polypeptide.
Which of the statements give above is/are true?

  • A Only 1
  • B Only 2
  • C 2 and 3
  • D 1, 2 and 3

Question - 8

Which of the following has magnesium?

  • A Carbonic anhydrase
  • B Vitamin-B12
  • C Chlorophyll
  • D Haemocyanin

Question - 9

Which among the following gases readily combines with the haemoglobin of the blood?

  • A Methane
  • B Nitrogen dioxide
  • C Carbon monoxide
  • D Sulphur dioxide

Question - 10

which of the following is an example of conjugated protein?

  • A Albumin
  • B Globulin
  • C Glutelin
  • D Glycoprotein