Q.1. The function of iron is

1. Formation of bones and teeth
2. Control excitability of nerves
3. Regulates the permeability of membranes
4. Transport of oxygen to tissue

Answer: (D)
Explanation: Iron is essential element for blood production. Haemoglobin is essential for transferring O2 in blood.

Q.2. Cobalt is a component of :

1. vitB6
2. Vit A
3. Vit B12
4. Vit D

Answer: (A)
Explanation: Cobalt is the active centre of co-enzyme called cobalamine.

Q.3. Alkaline phosphate level is increased in

1. Ricket
2. Leukemia
3. Cardial infection
4. Pancreatic deficiency

Answer: (A)
Explanation: Ticket is a disease of growing bone that is unique to children and a dietary deficiency of calcium or phosphorous.

Q.4. Microcytic hyper chronic anaemia occurs due to deficiency of

1. Cu2+
2. Co2+
3. Zinc
4. Iron

Answer: (D)

Q.5. Normal urine is

1. Neutral
2. Highly acidic
3. Slightly alkaline
4. Slightly acidic

Answer: (D)
Explanation: Urine contains high concentration of urea and other substances including toxins.

Q.6. Milky type colour of urine gets elevated in

1. Albimins
2. Haemoglobin
3. Fatty acid
4. Nephritis

Answer: (C)
Explanation: Milky type colour of urine is indication of UTI.

Q.7. A component of coenzyme A is

1. Inosine
2. Thiamine
3. Pethothenic acid
4. Pyridoxine

Answer: (C)
Explanation: Pethothenic acid is called vitamin B5. Animals require penthoneic acid to synthesise coenzyme A.

Q.8. Hyperlipidemia is excess of

1. Cholesterol and triglycerides
2. Free fatty acids
3. Glucose
4. Ketone bodies

Answer: (A)
Explanation: Hyperlipidemia is excess of lipids which means Cholesterol and triglycerides.

Q.9. Out of these amino acid which one is not essential amino acid?

1. Proline
2. Tryptophan
3. Tyrosine
4. Histidine

Answer: (A)
Explanation: Proline is not essential amino acid.

Q.10. Which one is essential amino acid

1. Alanine
2. Leucine
3. Proline
4. Tryptophan

Answer: (C)
Explanation: Proline is an essential amino acid.

Q.11. Polypeptide chain number can be identified by treatment of protein with

1. Barium chloride
2. Mercuric chloride
3. Nitric acid
4. Dansyl chloride

Answer: (D)
Explanation: Because dansyl chloride reacts with the free amino group of peptides and proteins.

Q.12. Isoelectric pH of pepsin is

1. 4.6
2. 4.7
3. 1.1
4. 11.0

Answer: (C)

Q.13. Methionine enkephalin is chain

1. Dipeptide
2. Tripeptide
3. Tetra peptide
4. Pentapeptide

Answer: (D)
Explanation: It consist of five amino acid linked together and attached to a fatty acid to enhance oil solubility.

Q.14. Plasminogen is converted to plasma with the help of enzyme

1. Streptokinase
2. Amylase
3. Aldolase
4. Acid phosphatase

Answer: (A)
Explanation: Streptokinase is an enzyme secreted by several species of streptococcus.

Q.15. Thiamine includes which one of the following chemical nucleus

1. Pyrimidine and thiazole
2. Pyrrole and furan
3. Imidazole
4. Acid phosphatase

Answer: (A)
Explanation: Thiamine is also known as VitB1, found in virtually all food.

Q.16. Biotin structure is formed by fusion of

1. Imidazole and thiophene ring
2. Imidazole and furan rings
3. Imidazole and insoles ring
4. Imidazole and purine rings

Answer: (A)
Explanation: Biotin has two rings fused together via one of their sider.

Q.17. 1 kilobase in DNA is equal to the

1. 10 base pair
2. 100 base pair
3. 1 base pair
4. 1000 base pair

Answer: (D)
Explanation: 1 kilobase in DNA is equal to the 1000 base pair.

Q.18. Which one is not the type of RNA

1. mRNA
2. iRNA
3. tRNA
4. rRNA

Answer: (B)
Explanation: iRNA is not the type of RNA

Q.19. Which of the following RNA have high concentration in cell?

1. mRNA
2. tRNA
3. rRNA
4. None of the above

Answer: (B)
Explanation: tRNA has L-shaped 3D structure because it has primary, secondary and tertiary structure.

Q.20. An example of transferase enzyme

1. Lipase
2. Hexokinase
3. Esterase
4. Urease

Answer: (B)
Explanation: It is an enzyme which phosphorylase hexose into hexose phosphate.

Q.21. Appropriate percentage of carbon in protein is the range of

1. 10-20%
2. 20-30%
3. 30-40%
4. 50-55%

Answer: (D)

Q.22. Appropriate percentage of sulphur in protein is the range of

1. 0-4%
2. 4-8%
3. 8-12%
4. 12-16%

Answer: (A)

Q.23. An example of amino acid which does not contain sulphur is

1. Aspartic acid
2. cystine
3. Methionine
4. Cysteine

Answer: (A)
Explanation: Aspartic acid does not contain sulphur in it.

Q.24. Main ring present in histidine amino acid is

1. Pyrrole
2. Imidazole
3. Furan
4. Thiophene

Answer: (B)

Q.25. Main ring present in tryptophan is

1. Indole
2. Imidazole
3. Furan
4. Thiophane

Answer: (A)