Biochemistry :: All Aptitude Test ::

1.Insulin increase the following pathways in liver EXCEPT____________?
A. Fatty acid synthesis
B. Glycogen synthesis
C. Protein syntehsis
D. Fatty acid synthesis

2.Most lipogenic____________?
A. Fructose
B. Glucose
C. Galactose
D. Fructose

3.Type II glycogen storage disorder is due to deficiency of______________?
A. Alpha -Glucosidase
B. Alpha galactosidase
C. Muscle phosphorylase
D. Alpha -Glucosidase

4.Dietary fibre is rich in_____________?
A. Starch
B. Cellulose
C. Collagen
D. Starch

5.Fructose intolerance is to_____________?
A. Fructose only
B. Fructose and glucose
C. Sucrose only
D. Fructose only

6.The monsaccharide glucose is best described by which one of the following statements ?
A. It usually exists in the furanose form
B. It is a ketose
C. It possessesan anomeric C-2 carbon atom
D. It usually exists in the furanose form

7.Number of ATP molecules generated in the conversion of glycogen of lactate is_____________?
A. 2
B. 36
C. 38
D. 2

8.NADPH is generated by the action of____________?
A. Glucose 6 phosphate dehydrogenase
B. Glucose 1 phosphate dehydrogenase
C. Glucose 1,6 diphosphate dehydrogenase
D. Glucose 6 phosphate dehydrogenase

9.HMP shunt is of great importance in cellular metabolism because its produces_____________?
A. ATP
B. ADP
C. Acetyl CoA
D. ATP

10.Glucose 6 phosphatase deficiency is seen in______________?
A. Pomper’s disease
B. Von Gierke’s disease
C. McArdles syndrome
D. Pomper’s disease

11.Sites where HMP shunts can occur include_______________?
A. Liver
B. WBC
C. Lactating mammary gland
D. Liver

12.Step in HMP pathway requiring TPP_____________?
A. G6 PD
B. 6 phosphogluconate dehydrogenase
C. Transketolase
D. G6 PD

13.1 molelcule of glucose forms _______ molecules of pyruvate?
A. 1
B. 2
C. 3
D. 1

14.The main pathways of metabolism in brain are______________?
A. Glycolysis and citric acid cycle
B. Glycogenolysis and Gluconeogenesis
C. Embden-Meyerhof Pathway and H.M.P shunt
D. Glycolysis and citric acid cycle

15.In glycolysis ATP is produced by the following enzyme______________?
A. Hexokinase
B. Phosphoglycerate kinase
C. Enolase
D. Hexokinase

16.Inhibition of glycolysis by O2 is known a_____________?
A. Muni effect
B. Pasteur effect
C. Hill reaction
D. Muni effect

17.Which one of the following is the correct sequential order in which the given enzymes of kreb’s cycle are formed after a molecule of acetyl CoA______________?
A. Citrate, Oxalocetate, Ketoglutarate
B. Ketoglutarate, Oxalocetate, Citrate
C. Citrate, Ketoglutarate, Oxalocetate
D. Citrate, Oxalocetate, Ketoglutarate

18.Kreb’s cycle does not occur in______________?
A. Muscle
B. RBC
C. Heart
D. Muscle

19.In TCA cycle or tricarboxylic acid cycle, which is first formed________________?
A. Isocitrate
B. Citrate
C. Succinate
D. Isocitrate

20.Renal threshold for glucose is______________?
A. 80 mg%
B. 100 mg%
C. 180 mg/ dl
D. 80 mg%

21.The key enzyme of gluconeogenesis is____?
A. Pyruvate carboxylase
B. Fructose 1,6 disphosphatase
C. Glucose 6 phosphatase
D. Pyruvate carboxylase

22.Which one of the following is a monosaccharide____?
A. Maltose
B. Sucrose
C. Fructose
D. Maltose

23.Which of the following is abnormal constituent of urine_____?
A. glucose
B. Creatine
C. Urea
D. glucose

24.The conversion of glucose 6-P to fructose 6-P is an example of which of the following reactions____?
A. Phosphate transfer
B. Isomerisation
C. Dehydration
D. Phosphate transfer

25.Cane sugar is______?
A. Glucose
B. Surose
C. Fructose
D. Glucose

26.In TCA, substrate level phospherylation takes place in______?
A. Alpha ketoglutrate to succinyl CoA
B. Succinyl CoA to Succinate
C. Succinate to fumarate
D. Alpha ketoglutrate to succinyl CoA

27.Enzymes concerned with the citric acid cycle are found in the______?
A. Nucleus
B. Ribosomes
C. Mitochondria
D. Nucleus

28.All of the following are substrates for gluconeogenesis except______?
A. Alanine
B. Oleic acid
C. Glycerol
D. Alanine

29.During conversion of glycerol to pyruvic acid, the first glycolytic intermediate to form is___?
A. 2- phospho glyceric acid
B. 3- phospho glyceric acid
C. 3- phospho glyceralehyde
D. 2- phospho glyceric acid

30.The first product of glycogenolysis is_______?
A. Glucose 6 phosphatase
B. Glucose 1,6 diphosphatase
C. Glucose 1- phosphatase
D. Glucose 6 phosphatase

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