Biochemistry MCQs

Option A: Tyrosine

Option B: Tryptophan

Option C: Alanine

Option D: Leucine

Correct Answer: Tyrosine ✔

Option A: Ornithine

Option B: Glutamine

Option C: Tryptophan

Option D: Phenylalanine

Correct Answer: Tryptophan ✔

Option A: Pyrrole rings

Option B: Vinyl groups

Option C: Histidine

Option D: Ferric ions

Correct Answer: Ferric ions ✔

Option A: Amino acids

Option B: Peptides

Option C: Peptones

Option D: All of the above

Correct Answer: Amino acids ✔

Option A: Alanine

Option B: Leucine

Option C: Histidine

Option D: Glycine

Correct Answer: Glycine ✔

Option A: Pyridine nucleotides

Option B: Riboflavin containing nucleotides

Option C: Metal containing flavoproteins

Option D: Iron-porphyrin proteins

Correct Answer: Iron-porphyrin proteins ✔

Option A: Between Helix C and D

Option B: Surrounded by non polar environment

Option C: Bonded to E7 histidine

Option D: Protoporophyrin IX

Correct Answer: Protoporophyrin IX ✔

Option A: Hb→Heme→bilirubin→Urobilinogen

Option B: Heme→Hb→Biliverdin→Urobilinogen

Option C: Hb→Heme→Bilverdin→Uro bilinogen

Option D: Hb→Heme→bilirubin→Urobilinogen→Biliverdin

Correct Answer: Hb→Heme→Bilverdin→Uro bilinogen ✔

Option A: Tryptophan

Option B: Arginine

Option C: Phenylalanine

Option D: Histidine

Correct Answer: Arginine ✔

Option A: Urea Aspartate

Option B: Aspartate

Option C: Glutamine

Option D: Glutamate

Correct Answer: Glutamate ✔

Option A: Urease

Option B: Carbamyl synthetase

Option C: Arginase

Option D: Ornithine

Correct Answer: Carbamyl synthetase ✔

Option A: Uric acid

Option B: Glutamine

Option C: Creatinine

Option D: Urea

Correct Answer: Urea ✔

Option A: Cycline

Option B: Calmodulin

Option C: Collagen

Option D: Kinesin

Correct Answer: Calmodulin ✔

Option A: Valine

Option B: Arginine

Option C: Histidine

Option D: Glutamic acid

Correct Answer: Histidine ✔

Option A: Nonsense mutation

Option B: Transversion

Option C: Silent mutation

Option D: Frame shift mutation

Correct Answer: Nonsense mutation ✔

Option A: Transamination

Option B: Hydroxylation

Option C: Decarboxylation

Option D: Reduction

Correct Answer: Decarboxylation ✔

Option A: Liver

Option B: Kidney

Option C: Muscle

Option D: Spleen

Correct Answer: Liver ✔

Option A: Arginine

Option B: Glycine

Option C: Phenylalanine

Option D: Leucine

Correct Answer: Phenylalanine ✔

Option A: Mitochondria

Option B: Poly ribosomes

Option C: Nucleus

Option D: Golgi bodies

Correct Answer: Poly ribosomes ✔

Option A: Albumin

Option B: Globulin

Option C: Lecithin

Option D: Firbinogen

Correct Answer: Firbinogen ✔

Option A: Hydroxyproline

Option B: Proline

Option C: Lysine

Option D: Glycine

Correct Answer: Hydroxyproline ✔

Option A: Tyrosine

Option B: Theronine

Option C: Tryptophan

Option D: Histidine

Correct Answer: Tryptophan ✔

Option A: Fe+2

Option B: O2

Option C: Ascorbic acid

Option D: Succinate

Correct Answer: Succinate ✔

Option A: Transcription

Option B: Transduction

Option C: Translation

Option D: Translocation

Correct Answer: Transcription ✔

Option A: Glucose

Option B: Fatty acid

Option C: Beta hydroxy butyrate

Option D: Glycerol

Correct Answer: Beta hydroxy butyrate ✔

Option A: Used by the body

Option B: Forming part of the proteins

Option C: Required in the diet

Option D: Absorbed in the intestines

Correct Answer: Required in the diet ✔

Option A: Non-essential amino acid

Option B: Involved in serotonin synthesis

Option C: Involved in niacin synthesis

Option D: Involved in melatonin in synthesis

Correct Answer: Non-essential amino acid ✔

Option A: Glycine

Option B: Valine

Option C: Cysteline

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Hemoglobin

Option B: Glutathione

Option C: Purines

Option D: Creatine

Correct Answer: All of the above ✔

Option A: The arrangement sequence of amino acids in the polypeptide chain

Option B: Inter relation between amino acids in a single polypeptide chain

Option C: Inter relation of amino acids in 2 polypeptide chains

Option D: The inter relation and arrangement of polypeptides in a protein with more than 2 polypeptide chains

Correct Answer: The inter relation and arrangement of polypeptides in a protein with more than 2 polypeptide chains ✔

Option A: Protamines

Option B: Peptones

Option C: Prolamines

Option D: Lactalbumin

Correct Answer: Peptones ✔

Option A: Phenyl ketonuria

Option B: Alkaptonuria

Option C: Homocystinuria

Option D: 6alactosemia

Correct Answer: 6alactosemia ✔

Option A: Nucleus

Option B: Lysosomes

Option C: Mitochondria

Option D: Golgi apparatus

Correct Answer: Lysosomes ✔

Option A: Non Sense mutation of beta chain

Option B: Missense mutation of beta chain

Option C: Degradation of beta chain

Option D: Deletion of beta chain

Correct Answer: Missense mutation of beta chain ✔

Option A: It is a tripetide

Option B: It converts hemoglobin to methemoglobin

Option C: It conjugates xenobiotics

Option D: It scavenges free radicals and superoxide ions

Correct Answer: It converts hemoglobin to methemoglobin ✔

Option A: Acidic

Option B: Basic

Option C: Aromatic

Option D: Branched chain

Correct Answer: Acidic ✔

Option A: 5 gm

Option B: 8 gm

Option C: 10 gm

Option D: 16 gm

Correct Answer: 8 gm ✔

Option A: 6

Option B: 8

Option C: 12

Option D: 16

Correct Answer: 8 ✔

Option A: Lysine

Option B: Histidine

Option C: Tyrosine

Option D: Proline

Correct Answer: Proline ✔

Option A: Protein synthesis

Option B: Protein degradation

Option C: Protein denaturation

Option D: Protein folding

Correct Answer: Protein folding ✔

Option A: 5- Hydroxy indole acetate

Option B: 3- Hydroxy phenyl pyruvate

Option C: Phenyl lactate

Option D: Phenyl acetate

Correct Answer: 5- Hydroxy indole acetate ✔

Option A: Brain

Option B: Kidney

Option C: Liver

Option D: Intestine

Correct Answer: Liver ✔

Option A: Cerruloplasmin

Option B: Transferrin

Option C: Transcobalamine

Option D: Haptoglobulin

Correct Answer: Haptoglobulin ✔

Option A: Hb has 2 polypeptide chains

Option B: Iron is present in ferrous state

Option C: Hb structurally similar to myoglobin

Option D: Ferrous ions are in porphyrin rings

Correct Answer: Hb has 2 polypeptide chains ✔

Option A: Sulphydryl group

Option B: Carboxy terminal

Option C: Amino terminal

Option D: Histidine

Correct Answer: Amino terminal ✔

Option A: Leucine

Option B: Histidine

Option C: Isoleucine

Option D: Valine

Correct Answer: Histidine ✔

Option A: Urease

Option B: Uricase

Option C: Arginase

Option D: Glutaminase

Correct Answer: Arginase ✔

Option A: Barfoed test

Option B: Hay’s test

Option C: Boiling test

Option D: Ehrlich’s test

Correct Answer: Boiling test ✔

Option A: Aspartate

Option B: Succinate

Option C: Ornithine

Option D: Fumarate

Correct Answer: Fumarate ✔

Option A: Cystine

Option B: Ornithine

Option C: Arginine

Option D: Lysine

Correct Answer: All of the above ✔

Option A: Histidine

Option B: Cystine

Option C: Tyrosine

Option D: Alanine

Correct Answer: Tyrosine ✔

Option A: Prolamines

Option B: Albumin

Option C: Globulin

Option D: Myosin

Correct Answer: Myosin ✔

Option A: Proline

Option B: Phenylalanine

Option C: Isoleucine

Option D: Leucine

Correct Answer: Leucine ✔

Option A: Glutamate and glycine

Option B: Alanine and glycine

Option C: Proline and glycine

Option D: Glutamate and proline

Correct Answer: Proline and glycine ✔

Option A: Amylase

Option B: Sucrase

Option C: Chymotrypsin

Option D: Pepsin

Correct Answer: Pepsin ✔

Option A: Triacyl glycerol

Option B: Proteins

Option C: Glucose

Option D: Lipids

Correct Answer: Proteins ✔

Option A: Parahydroxy phenyl pyruvate Hydroxylase

Option B: Tyrosine transaminase

Option C: Homogentisate oxidase

Option D: Tyrosine oxidase

Correct Answer: Homogentisate oxidase ✔

Option A: Glycine

Option B: Hydroxy proline

Option C: Glutamic acid

Option D: Choline

Correct Answer: Choline ✔

Option A: Phenylalanine

Option B: Tryptophan

Option C: Tyrosine

Option D: Methionine

Correct Answer: Tyrosine ✔

Option A: Glycine

Option B: Leucine

Option C: Lycie

Option D: Valine

Correct Answer: Glycine ✔

Option A: Phenylalanine, Tryptophan lysine

Option B: Phenylalanine, Arginine Methinonine

Option C: Phenylalanine, Valine, Glycine

Option D: Histidine, Glutamine, Valine

Correct Answer: Phenylalanine, Tryptophan lysine ✔

Option A: Mutation

Option B: Translation

Option C: Transcription

Option D: Conjugation

Correct Answer: Translation ✔

Option A: Phenylalanine

Option B: Proline

Option C: Tryptophan

Option D: Threonine

Correct Answer: Proline ✔

Option A: Tyrosine

Option B: Valine

Option C: Methionine

Option D: Cystine

Correct Answer: Tyrosine ✔

Option A: Arginine

Option B: Glycine

Option C: Phenylalanine

Option D: Phenylalanine, Glycine

Correct Answer: Phenylalanine ✔

Option A: Leucine

Option B: Isoleucine

Option C: Valine

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Tryptophan

Option B: Valine

Option C: Methionine

Option D: Histidine

Correct Answer: Tryptophan ✔

Option A: Protein

Option B: Fat

Option C: Carbohydrate

Option D: None of the above

Correct Answer: Protein ✔

Option A: Simple

Option B: Peptones

Option C: Prolamines

Option D: Lactalbumin

Correct Answer: Simple ✔

Option A: H2 bond

Option B: Hydrophobic

Option C: Ionic bond

Option D: Disulphide bond

Correct Answer: None of the above ✔

Option A: Maturation of procollagen

Option B: Formation of osteoid matrix

Option C: Calcification of osteoid

Option D: Both A and B

Correct Answer: Both A and B ✔

Option A: Vitamin C

Option B: Vitamin B complex

Option C: Iron

Option D: Calcium

Correct Answer: Vitamin C ✔

Option A: VIII a and V a

Option B: VIII a

Option C: V a

Option D: None of the above

Correct Answer: VIII a and V a ✔

Option A: Fracastorius

Option B: James lind

Option C: John snow

Option D: Edward Jenner

Correct Answer: James lind ✔

Option A: Perleche

Option B: Beri beri

Option C: Pellagra

Option D: Nyctalopia

Correct Answer: Pellagra ✔

Option A: Pyruvate carboxylase

Option B: Lactate dehydrogenase

Option C: Succinate thiokinase

Option D: Phosphohexose isomerase

Correct Answer: Pyruvate carboxylase ✔

Option A: Hemolytic anemia

Option B: Posterior column abnormalities

Option C: Cerebellar ataxia

Option D: Autonomic dysfunctions

Correct Answer: Autonomic dysfunctions ✔

Option A: The synthesis of clotting factors

Option B: Post translational modifications

Option C: Antioxidant mechanisms

Option D: The microsomal hydroxylation reactions

Correct Answer: Post translational modifications ✔

Option A: Thiamine levels in blood

Option B: Alkaline phosphatase levels in blood

Option C: Transketolase activity in RBC

Option D: Plasma pyruvate and lactic acid levels

Correct Answer: Transketolase activity in RBC ✔

Option A: Extrinsic factor of castle

Option B: Intrinsic factor of castle

Option C: Cyano cobalamine

Option D: A fat soluble vitamin

Correct Answer: Extrinsic factor of castle ✔

Option A: N-methyl nicotinamide

Option B: Riboflavin

Option C: PRPP

Option D: Tryptophan

Correct Answer: Tryptophan ✔

Option A: Riboflavin

Option B: Biotin

Option C: Thiamine

Option D: Pyridoxine

Correct Answer: Biotin ✔

Option A: Pyridoxine

Option B: Vit E

Option C: Vit A

Option D: Pantothenic acid

Correct Answer: Pyridoxine ✔

Option A: Defective collagen synthesis

Option B: Soft swollen gums

Option C: Pigeon chest

Option D: Subcutaneous & other hemorrhage

Correct Answer: Pigeon chest ✔

Option A: Vitamin K

Option B: Vitamin B6

Option C: Vitamin folic acid

Option D: Niacin

Correct Answer: Vitamin folic acid ✔

Option A: Biotin

Option B: Niacin

Option C: Thiamine

Option D: Phylloquinone

Correct Answer: Biotin ✔

Option A: Apple

Option B: Fresh green vegetables

Option C: Citrus fruits

Option D: Both B and C

Correct Answer: Both B and C ✔

Option A: Redox reactions

Option B: Transamination reaction

Option C: Methyl group transfer

Option D: Amine group transfer

Correct Answer: Redox reactions ✔

Option A: Vit A

Option B: Vit C

Option C: Vit B2

Option D: Vit D

Correct Answer: Vit C ✔

Option A: Thiamine

Option B: Riboflavin

Option C: Niacin

Option D: Folic acid

Correct Answer: Riboflavin ✔

Option A: Tyrosine

Option B: Tryptophan

Option C: Threonine

Option D: Histidine

Correct Answer: Tryptophan ✔

Option A: Biotin

Option B: Pyridoxine

Option C: Pantothenic acid

Option D: Niacin

Correct Answer: Pantothenic acid ✔

Option A: Milk

Option B: Cabbage

Option C: Guava

Option D: Radish

Correct Answer: Milk ✔

Option A: Vit B1 deficiency

Option B: Vit B12 deficiency

Option C: Vit C deficiency

Option D: Vit D deficiency

Correct Answer: Vit B12 deficiency ✔

Option A: Niacin

Option B: Thiamine

Option C: Ascorbic acid

Option D: Folic acid

Correct Answer: Folic acid ✔

Option A: 30 – 40 mg

Option B: 50 – 60 mg

Option C: 60 – 100 mg

Option D: 100 – 150 mg

Correct Answer: B. 50 – 60 mg ✔

Option A: Vitamin A deficiency

Option B: Vitamin D deficiency

Option C: Vitamin C deficiency

Option D: Vitamin K deficiency

Correct Answer: Vitamin A deficiency ✔

Option A: Vitamin B12 deficiency

Option B: Ascorbic acid deficiency

Option C: Infection

Option D: B & C option

Correct Answer: B & C option ✔

Option A: Is a reducing agent

Option B: Decrease iron absorption

Option C: Is harmless in high doses

Option D: Is requirement for lysyl oxidase

Correct Answer: Is a reducing agent ✔

Option A: Vitamin A

Option B: Vitamin E

Option C: Vitamin K

Option D: Vitamin D

Correct Answer: Vitamin E ✔