Biochemistry MCQs

Option A: Thiamine – Acyl CoA

Option B: Biotin-CO2

Option C: ATP-Hydrogen

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Fatty acid synthesis

Option B: Glycogen synthesis

Option C: Protein syntehsis

Option D: Glucose synthesis

Correct Answer: Glucose synthesis ✔

Option A: Fructose

Option B: Glucose

Option C: Galactose

Option D: Ribose

Correct Answer: Fructose ✔

Option A: Alpha -Glucosidase

Option B: Alpha galactosidase

Option C: Muscle phosphorylase

Option D: Acid Lipase

Correct Answer: Alpha -Glucosidase ✔

Option A: Starch

Option B: Cellulose

Option C: Collagen

Option D: Inulin

Correct Answer: Cellulose ✔

Option A: Fructose only

Option B: Fructose and glucose

Option C: Sucrose only

Option D: Fructose and sucrose

Correct Answer: Fructose and sucrose ✔

Option A: It usually exists in the furanose form

Option B: It is a ketose

Option C: It possessesan anomeric C-2 carbon atom

Option D: It formspart of the disaccharide sucrose

Correct Answer: It formspart of the disaccharide sucrose ✔

Option A: 2

Option B: 36

Option C: 38

Option D: 32

Correct Answer: 2 ✔

Option A: Glucose 6 phosphate dehydrogenase

Option B: Glucose 1 phosphate dehydrogenase

Option C: Glucose 1,6 diphosphate dehydrogenase

Option D: All of the above

Correct Answer: Glucose 6 phosphate dehydrogenase ✔

Option A: ATP

Option B: ADP

Option C: Acetyl CoA

Option D: NADPH

Correct Answer: ADP ✔

Option A: Pomper’s disease

Option B: Von Gierke’s disease

Option C: McArdles syndrome

Option D: Downs syndrome

Correct Answer: B. Von Gierke’s disease ✔

Option A: Liver

Option B: WBC

Option C: Lactating mammary gland

Option D: Testes

Correct Answer: All of the above ✔

Option A: G6 PD

Option B: 6 phosphogluconate dehydrogenase

Option C: Transketolase

Option D: Transaldolase

Correct Answer: Transketolase ✔

Option A: 1

Option B: 2

Option C: 3

Option D: 4

Correct Answer: 2 ✔

Option A: Glycolysis and citric acid cycle

Option B: Glycogenolysis and Gluconeogenesis

Option C: Embden-Meyerhof Pathway and H.M.P shunt

Option D: Glycogenolysis and Citric and cycle

Correct Answer: Glycolysis and citric acid cycle ✔

Option A: Hexokinase

Option B: Phosphoglycerate kinase

Option C: Enolase

Option D: Phosphohexose isomerase

Correct Answer: Phosphoglycerate kinase ✔

Option A: Muni effect

Option B: Pasteur effect

Option C: Hill reaction

Option D: Gluconeogenesis

Correct Answer: Pasteur effect ✔

Option A: Citrate, Oxalocetate, Ketoglutarate

Option B: Ketoglutarate, Oxalocetate, Citrate

Option C: Citrate, Ketoglutarate, Oxalocetate

Option D: Oxalocetate, Ketoglutarate, Citrate

Correct Answer: Citrate, Oxalocetate, Ketoglutarate ✔

Option A: Muscle

Option B: RBC

Option C: Heart

Option D: All of the above

Correct Answer: RBC ✔

Option A: Isocitrate

Option B: Citrate

Option C: Succinate

Option D: Fumarate

Correct Answer: Citrate ✔

Option A: 80 mg%

Option B: 100 mg%

Option C: 180 mg/ dl

Option D: 200 mg%

Correct Answer: 180 mg/ dl ✔

Option A: Pyruvate carboxylase

Option B: Fructose 1,6 disphosphatase

Option C: Glucose 6 phosphatase

Option D: Phosphoenol pyruvate carboxykinase

Correct Answer: Pyruvate carboxylase ✔

Option A: Maltose

Option B: Sucrose

Option C: Fructose

Option D: Strach

Correct Answer: Fructose ✔

Option A: glucose

Option B: Creatine

Option C: Urea

Option D: None of the above

Correct Answer: glucose ✔

Option A: Phosphate transfer

Option B: Isomerisation

Option C: Dehydration

Option D: Aldol cleavage

Correct Answer: Isomerisation ✔

Option A: Glucose

Option B: Surose

Option C: Fructose

Option D: Maltose

Correct Answer: Surose ✔

Option A: Alpha ketoglutrate to succinyl CoA

Option B: Succinyl CoA to Succinate

Option C: Succinate to fumarate

Option D: Oxalocetate to citrate

Correct Answer: Succinyl CoA to Succinate ✔

Option A: Nucleus

Option B: Ribosomes

Option C: Mitochondria

Option D: Nonparticulate cytoplasm

Correct Answer: Mitochondria ✔

Option A: Alanine

Option B: Oleic acid

Option C: Glycerol

Option D: Tryptophan

Correct Answer: Oleic acid ✔

Option A: 2- phospho glyceric acid

Option B: 3- phospho glyceric acid

Option C: 3- phospho glyceralehyde

Option D: Dihydroxy acetone phosphate

Correct Answer: Dihydroxy acetone phosphate ✔

Option A: Glucose 6 phosphatase

Option B: Glucose 1,6 diphosphatase

Option C: Glucose 1- phosphatase

Option D: Fructose 1- phosphatase

Correct Answer: Glucose 1- phosphatase ✔

Option A: Amino acids

Option B: Glycerol

Option C: Acetoacetate

Option D: Lactic acid

Correct Answer: Acetoacetate ✔

Option A: Liver

Option B: Muscle

Option C: Kidneys

Option D: Testes

Correct Answer: Liver ✔

Option A: Lactate

Option B: Glycerol

Option C: Ketones

Option D: Alanine

Correct Answer: Lactate ✔

Option A: UTP

Option B: GTP

Option C: Pyruvate Kinase

Option D: Guanosine

Correct Answer: UTP ✔

Option A: Glyceraldehyde 3 phosphate dehydrogenase

Option B: Lactate dehydrogenase

Option C: Glucose 6-Phosphate dehydrogenase

Option D: Beta hydroxy acyl CoA dehydrogenase

Correct Answer: Glucose 6-Phosphate dehydrogenase ✔

Option A: Glucose

Option B: Ketone bodies

Option C: Fructose

Option D: Fatty acids

Correct Answer: Ketone bodies ✔

Option A: Enzymes

Option B: Vitamins

Option C: Minerals

Option D: None of the above

Correct Answer: None of the above ✔

Option A: There is increase in phosphorylation of glucose by glucokinase

Option B: GLUT-2 stimulated by insulin

Option C: Glucokinase has a low Km for glucose

Option D: Hexokinase in liver has a high affinity for glucose

Correct Answer: There is increase in phosphorylation of glucose by glucokinase ✔

Option A: Lactate dehydrogenase

Option B: Pyruvate kinase

Option C: Citrate synthase

Option D: Pyruvate dehydrogenase

Correct Answer: Pyruvate dehydrogenase ✔

Option A: Thiamine

Option B: Pyridoxine

Option C: Niacin

Option D: Vitamin C

Correct Answer: Thiamine ✔

Option A: Glucose

Option B: Lactic acid

Option C: Glucose & Lactic acid

Option D: Glycoprotein

Correct Answer: Glucose ✔

Option A: Galactose

Option B: Lactose

Option C: Maltose

Option D: Sucrose

Correct Answer: Galactose ✔

Option A: 2

Option B: 8

Option C: 12

Option D: 32

Correct Answer: 2 ✔

Option A: EMP pathway

Option B: Krebs cylce

Option C: Urea cycle

Option D: Electron transfer

Correct Answer: EMP pathway ✔

Option A: NADPH

Option B: D fructose 6 phosphate

Option C: D sedoheptulose 5 phosphate

Option D: D glyceraldehyde 3 phosphate

Correct Answer: D sedoheptulose 5 phosphate ✔

Option A: Hyperuricemia

Option B: Hyperglycemia

Option C: Defective cori cycle

Option D: Increased mobilization of glycogen from liver

Correct Answer: Hyperglycemia ✔

Option A: G-6-P dehydrogenase

Option B: G-6-P phydrogenase

Option C: Aldolase

Option D: Glucokinase

Correct Answer: G-6-P phydrogenase ✔

Option A: Galactose 1 phosphatase uridyl transferase

Option B: Galactose 1 phosphatase

Option C: Glucose 1 phosphatase

Option D: Glucose 6 phosphatase

Correct Answer: Galactose 1 phosphatase uridyl transferase ✔

Option A: I

Option B: II

Option C: III

Option D: IV

Correct Answer: I ✔

Option A: Glucose 1 phosphatase

Option B: Glucose 1,6 phosphatase

Option C: Glucose 6 phosphatase

Option D: Myophosphorylase

Correct Answer: Myophosphorylase ✔

Option A: Enolase

Option B: Phosphoglycero mutase

Option C: Aldolase

Option D: Glycerophosphate dehydrogenase

Correct Answer: Glycerophosphate dehydrogenase ✔

Option A: Glycolysis

Option B: Gluconeogenesis

Option C: Beta oxidation

Option D: TCA cycle

Correct Answer: Glycolysis ✔

Option A: Alpha ketoglutarate

Option B: Ornithine

Option C: Oxalocetate

Option D: Glycine

Correct Answer: Alpha ketoglutarate ✔

Option A: Isocitrate

Option B: Cisaconitate

Option C: Oxalocetate

Option D: Glutarate

Correct Answer: Cisaconitate ✔

Option A: Succinate dehydrogenase

Option B: Malonate reduction

Option C: Thiokinase

Option D: None of the above

Correct Answer: Thiokinase ✔

Option A: Isocitrate to oxalo succinate -1 ATP is formed

Option B: Succinyl CoA to succinate -1 ATP is formed

Option C: Succinate to furmarate -1 ATP is formed

Option D: Malate to oxaloacetate -1 ATP is formed

Correct Answer: Succinyl CoA to succinate -1 ATP is formed ✔

Option A: Phosphofructokinase

Option B: Glucose-6-Phosphatase

Option C: Hexokinase

Option D: Enolase

Correct Answer: Hexokinase ✔

Option A: Lactic acid

Option B: Pyruvic acid

Option C: Acetoacetic acid

Option D: Oxaloacetic acid

Correct Answer: Lactic acid ✔

Option A: Glucose

Option B: Maltose

Option C: Lactose

Option D: Sucrose

Correct Answer: Sucrose ✔

Option A: ATP

Option B: TTP

Option C: ITP

Option D: GTP

Correct Answer: GTP ✔

Option A: Cytochrome P-450

Option B: Glutathione S-transferase

Option C: NADPH cytochrome P-450 reductase

Option D: Glucuronyl transferase

Correct Answer: Cytochrome P-450 ✔

Option A: Oxaloacetic acid

Option B: Glutamic acid

Option C: Nitric acid

Option D: None of the above

Correct Answer: Oxaloacetic acid ✔

Option A: Aerobic

Option B: Anaerobic

Option C: Microaerophilic

Option D: Aerobic and anaerobic

Correct Answer: Aerobic ✔

Option A: Pyruvate dehydrogenase

Option B: Alpha ketoglutarate dehydrogenase

Option C: Succinate dehydrogenase

Option D: Enolase

Correct Answer: Both A & B ✔

Option A: The hydrolysis of lactose yields glucose and galactose

Option B: The hydrolysis of maltose yields glucose and fructose

Option C: The hydrolysis of sucrose yields only glucose

Option D: All of the above statements are true

Correct Answer: The hydrolysis of lactose yields glucose and galactose ✔

Option A: Acetyl CoA

Option B: Lactate

Option C: Palmitic acid

Option D: Fructose

Correct Answer: Lactate ✔

Option A: Glucokinase

Option B: Hexokinase

Option C: Glucose 6 phosphatase

Option D: Adenylate kinase

Correct Answer: Glucokinase ✔

Option A: Glucokinase

Option B: Hexokinase

Option C: Phosphorylase

Option D: Glucose diphosphatase

Correct Answer: Phosphorylase ✔

Option A: Kidney

Option B: Muscle

Option C: Heart

Option D: Fat

Correct Answer: Kidney ✔

Option A: Cortisone

Option B: Insulin

Option C: GH

Option D: Epinephrine

Correct Answer: Insulin ✔

Option A: Glycogen

Option B: Cellulose

Option C: Amylase

Option D: Inulin

Correct Answer: Inulin ✔

Option A: Pentoses

Option B: Disaccharides

Option C: Polysaccharides

Option D: Hexoses

Correct Answer: Hexoses ✔

Option A: Pyruvate carboxylase

Option B: Lactate dehydrogenase

Option C: Succinate thiokinase

Option D: Phosphohexose isomerase

Correct Answer: Pyruvate carboxylase ✔

Option A: Zellweger’s syndrome

Option B: Gaucher’s disease

Option C: Epidermolysis bullosa

Option D: Leber’s neuropathy

Correct Answer: A. Zellweger’s syndrome ✔

Option A: Apo A-II

Option B: Apo C-II

Option C: Apo C-III

Option D: Apo B-II

Correct Answer: Apo C-II ✔

Option A: Apoenzymes

Option B: Coenzymes

Option C: Proenzymes

Option D: Holoenzymes

Correct Answer: Proenzymes ✔

Option A: Myoglobin

Option B: Cytochrome

Option C: Catalase

Option D: Pyruvate kinase

Correct Answer: Pyruvate kinase ✔

Option A: Alkaline phosphatase

Option B: SGOT

Option C: SGPT

Option D: CPK

Correct Answer: CPK ✔

Option A: Isozyme

Option B: Coenzyme

Option C: Antienzyme

Option D: Zymogen

Correct Answer: Isozyme ✔

Option A: Apoenzyme

Option B: Coenzyme

Option C: Holoenzyme

Option D: Constitutive enzyme

Correct Answer: Holoenzyme ✔

Option A: Tyrosine kinase

Option B: Polymerase

Option C: ATP synthase

Option D: Adenylate cyclase

Correct Answer: Adenylate cyclase ✔

Option A: Glutamine synthetase

Option B: Fumarase

Option C: Cholinesterase

Option D: Amylase

Correct Answer: Fumarase ✔

Option A: DNA polymerase

Option B: RNA polymerase

Option C: Reverse transcriptase

Option D: Phospho kinase

Correct Answer: Reverse transcriptase ✔

Option A: Pro enzyme

Option B: Iso enzyme

Option C: Co-enzyme

Option D: Holoenzyme

Correct Answer: Iso enzyme ✔

Option A: CPK

Option B: LDH

Option C: SGOT

Option D: Amylase

Correct Answer: CPK ✔

Option A: Cholinesterase

Option B: Anticholinesterases

Option C: Catechol 0-transferase

Option D: Oxidases

Correct Answer: Catechol 0-transferase ✔

Option A: Muscle lacks glucose 6 phosphatase

Option B: Muscle lacks phospho gluco isomerase

Option C: Absence of glucokinase

Option D: Muscle does not contain glycogen phosphorylase

Correct Answer: Muscle lacks glucose 6 phosphatase ✔

Option A: ATPase

Option B: Enolase

Option C: Pyruvate Kinase

Option D: Fructose 6 phosphatase

Correct Answer: Enolase ✔

Option A: Lowering the activation energy

Option B: Increasing the substrate concentration

Option C: Decreasing the surface tension

Option D: Increasing the activation energy

Correct Answer: Lowering the activation energy ✔

Option A: Transketolase

Option B: Dehydrogenase

Option C: Oxidase

Option D: Carboxylase

Correct Answer: Carboxylase ✔

Option A: Transketaolase

Option B: Transaldolase

Option C: Alpha ketoglutarate dehydrogenase

Option D: Pyruvate dehydrogenase

Correct Answer: Transketaolase ✔

Option A: Decrease of km and increase of Vmax

Option B: increase of km and increase of Vmax

Option C: Decrease of km and decrease of Vmax

Option D: Increase of km and Unchanged of Vmax

Correct Answer: Increase of km and Unchanged of Vmax ✔

Option A: It is present in cytoplasm

Option B: Catalyzes the conversion of pyruvate to oxaloacetate

Option C: Requires TPP as cofactor

Option D: Catalyzes a reversible reaction

Correct Answer: Requires TPP as cofactor ✔

Option A: FMN

Option B: FAD

Option C: NADP+

Option D: Ferro protoporphyrin

Correct Answer: Ferro protoporphyrin ✔

Option A: Cytochrome oxidase

Option B: Dehydrogenase

Option C: Hydrolase

Option D: Peroxidase

Correct Answer: Peroxidase ✔

Option A: Phosphofructokinase

Option B: Hexokinase

Option C: Pyruvate kinase

Option D: Glucose 1,6 diphosphatase

Correct Answer: Phosphofructokinase ✔

Option A: Fatty acid synthetase

Option B: Malonyl CoA carboxylase

Option C: Carbomoyl Phosphate synthetase

Option D: Adenosine phospho ribosyl transferase

Correct Answer: Fatty acid synthetase ✔

Option A: They are multienzyme complex

Option B: Follow Michaelis-Menton Kinetics

Option C: Presence of Modulator site

Option D: Give sigmoid shaped curve

Correct Answer: Follow Michaelis-Menton Kinetics ✔

Option A: Catalase

Option B: Tocopherol

Option C: Superoxide dismutase

Option D: Urate

Correct Answer: Catalase ✔