This is practice Set 5 of the Biochemistry test series for Pharmacy, Diploma Pharmacy, and medical/paramedical students. There will be a total of 5 sets in this Biochemistry test series. In each set, there will be 25 MCQs for practice and revision of the basic concept of Biochemistry. This Practice set includes important MCQs from Biochemistry. These MCQs help to clear basic concepts.
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Q.1.
The function of iron is
- Formation of bones and teeth
- Control excitability of nerves
- Regulates the permeability of membranes
- Transport of oxygen to tissue
Answer:
(D)
Explanation: Iron is essential element for blood production. Haemoglobin is essential for transferring O2 in blood.
Explanation: Iron is essential element for blood production. Haemoglobin is essential for transferring O2 in blood.
Q.2.
Cobalt is a component of :
- vitB6
- Vit A
- Vit B12
- Vit D
Answer:
(A)
Explanation: Cobalt is the active centre of co-enzyme called cobalamine.
Explanation: Cobalt is the active centre of co-enzyme called cobalamine.
Q.3.
Alkaline phosphate level is increased in
- Ricket
- Leukemia
- Cardial infection
- 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.
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
- Cu2+
- Co2+
- Zinc
- Iron
Answer:
(D)
Q.5.
Normal urine is
- Neutral
- Highly acidic
- Slightly alkaline
- Slightly acidic
Answer:
(D)
Explanation: Urine contains high concentration of urea and other substances including toxins.
Explanation: Urine contains high concentration of urea and other substances including toxins.
Q.6.
Milky type colour of urine gets elevated in
- Albimins
- Haemoglobin
- Fatty acid
- Nephritis
Answer:
(C)
Explanation: Milky type colour of urine is indication of UTI.
Explanation: Milky type colour of urine is indication of UTI.
Q.7.
A component of coenzyme A is
- Inosine
- Thiamine
- Pethothenic acid
- Pyridoxine
Answer:
(C)
Explanation: Pethothenic acid is called vitamin B5. Animals require penthoneic acid to synthesise coenzyme A.
Explanation: Pethothenic acid is called vitamin B5. Animals require penthoneic acid to synthesise coenzyme A.
Q.8.
Hyperlipidemia is excess of
- Cholesterol and triglycerides
- Free fatty acids
- Glucose
- Ketone bodies
Answer:
(A)
Explanation: Hyperlipidemia is excess of lipids which means Cholesterol and triglycerides.
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?
- Proline
- Tryptophan
- Tyrosine
- Histidine
Answer:
(A)
Explanation: Proline is not essential amino acid.
Explanation: Proline is not essential amino acid.
Q.10.
Which one is essential amino acid
- Alanine
- Leucine
- Proline
- Tryptophan
Answer:
(C)
Explanation: Proline is an essential amino acid.
Explanation: Proline is an essential amino acid.
Q.11.
Polypeptide chain number can be identified by treatment of protein with
- Barium chloride
- Mercuric chloride
- Nitric acid
- Dansyl chloride
Answer:
(D)
Explanation: Because dansyl chloride reacts with the free amino group of peptides and proteins.
Explanation: Because dansyl chloride reacts with the free amino group of peptides and proteins.
Q.12.
Isoelectric pH of pepsin is
- 4.6
- 4.7
- 1.1
- 11.0
Answer:
(C)
Q.13.
Methionine enkephalin is chain
- Dipeptide
- Tripeptide
- Tetra peptide
- Pentapeptide
Answer:
(D)
Explanation: It consist of five amino acid linked together and attached to a fatty acid to enhance oil solubility.
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
- Streptokinase
- Amylase
- Aldolase
- Acid phosphatase
Answer:
(A)
Explanation: Streptokinase is an enzyme secreted by several species of streptococcus.
Explanation: Streptokinase is an enzyme secreted by several species of streptococcus.
Q.15.
Thiamine includes which one of the following chemical nucleus
- Pyrimidine and thiazole
- Pyrrole and furan
- Imidazole
- Acid phosphatase
Answer:
(A)
Explanation: Thiamine is also known as VitB1, found in virtually all food.
Explanation: Thiamine is also known as VitB1, found in virtually all food.
Q.16.
Biotin structure is formed by fusion of
- Imidazole and thiophene ring
- Imidazole and furan rings
- Imidazole and insoles ring
- Imidazole and purine rings
Answer:
(A)
Explanation: Biotin has two rings fused together via one of their sider.
Explanation: Biotin has two rings fused together via one of their sider.
Q.17.
1 kilobase in DNA is equal to the
- 10 base pair
- 100 base pair
- 1 base pair
- 1000 base pair
Answer:
(D)
Explanation: 1 kilobase in DNA is equal to the 1000 base pair.
Explanation: 1 kilobase in DNA is equal to the 1000 base pair.
Q.18.
Which one is not the type of RNA
- mRNA
- iRNA
- tRNA
- rRNA
Answer:
(B)
Explanation: iRNA is not the type of RNA
Explanation: iRNA is not the type of RNA
Q.19.
Which of the following RNA have high concentration in cell?
- mRNA
- tRNA
- rRNA
- None of the above
Answer:
(B)
Explanation: tRNA has L-shaped 3D structure because it has primary, secondary and tertiary structure.
Explanation: tRNA has L-shaped 3D structure because it has primary, secondary and tertiary structure.
Q.20.
An example of transferase enzyme
- Lipase
- Hexokinase
- Esterase
- Urease
Answer:
(B)
Explanation: It is an enzyme which phosphorylase hexose into hexose phosphate.
Explanation: It is an enzyme which phosphorylase hexose into hexose phosphate.
Q.21.
Appropriate percentage of carbon in protein is the range of
- 10-20%
- 20-30%
- 30-40%
- 50-55%
Answer:
(D)
Q.22.
Appropriate percentage of sulphur in protein is the range of
- 0-4%
- 4-8%
- 8-12%
- 12-16%
Answer:
(A)
Q.23.
An example of amino acid which does not contain sulphur is
- Aspartic acid
- cystine
- Methionine
- Cysteine
Answer:
(A)
Explanation: Aspartic acid does not contain sulphur in it.
Explanation: Aspartic acid does not contain sulphur in it.
Q.24.
Main ring present in histidine amino acid is
- Pyrrole
- Imidazole
- Furan
- Thiophene
Answer:
(B)
Q.25.
Main ring present in tryptophan is
- Indole
- Imidazole
- Furan
- Thiophane
Answer:
(A)
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