medical MCQs – Page 376

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

7501. Mutation in the oxidative enzymes (peroxisomes) could lead to_______________?
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A. Lebers neuropathy

B. Zellwegers syndrome

C. Gauchers disease

D. Epidermolysis bullosa

7502. Type II glycogen storage disorder is due to deficiency of______________?
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A. Alpha galactosidase

B. Alpha -Glucosidase

C. Muscle phosphorylase

D. Acid Lipase

7503. The uptake of glucose by the liver increase following a carbohydrate meal because____________?
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A. GLUT-2 stimulated by insulin

B. Glucokinase has a low Km for glucose

C. There is increase in phosphorylation of glucose by glucokinase

D. Hexokinase in liver has a high affinity for glucose

7504. Phosphofructokinase is the key enzyme of______________?
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A. Gluconeogenesis

B. Glycolysis

C. Beta oxidation

D. TCA cycle

7505. A material that speeds up a chemical reaction without chemically becoming involved is called_____________?
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A. A base

B. Thermoplastic

C. A catalyst

D. A solvent

7506. The compound that can give rise to glucose by gluconeogenesis is_____________?
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A. Palmitic acid

B. Lactate

C. Fructose

D. Acetyl CoA

7507. Which of the following is not a second messenger ?
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A. c GMP

B. Phosphatidyl glycerol

C. Phosphatidyl inosital

D. c AMP

7508. Major contribution towards gluconeogenesis is by____________?
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A. Alanine

B. Glycerol

C. Ketones

D. Lactate

7509. Cane sugar is____________?
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A. Surose

B. Glucose

C. Fructose

D. Maltose

7510. Kinase requires_______________?
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A. Inorganic phosphate

B. Mg++

C. Cu++

D. MN++

7511. Triglycerides in serum are transported by_______________?
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A. Chylomicrons

B. VLDL

C. LDL

D. HDL

7512. Urea is formed in_____________?
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A. Liver

B. Brain

C. Kidney

D. Intestine

7513. Acetyl CoA is produced from which fuel sources_____________?
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A. Amino acids

B. Carbohydrate

C. All of the above

D. Lipid

7514. Sources of the nucleotide portion of NAD include__________________?
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A. Tryptophan

B. N-methyl nicotinamide

C. Riboflavin

D. PRPP

7515. Collagen formation is affected in deficiency of_____________?
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A. Vit D

B. Vit A

C. Vit B2

D. Vit C

7516. On complete hydrolysis of DNA we will get all the following except______________?
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A. Deoxy pentose sugar

B. Phosphoric acid

C. Purine bases

D. Adenosine

7517. Major source of ammonia in the kidney is___________?
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A. Aspartate

B. Glutamate

C. Glutamine

D. Urea Aspartate

7518. Vitamin C effects_________________?
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A. Maturation of procollagen

B. Formation of osteoid matrix

C. Calcification of osteoid

D. Both A and B

7519. The nitrogen content in 50 gm of a typical dietary protein is most likely to be_____________?
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A. 16 gm

B. 8 gm

C. 5 gm

D. 10 gm

7520. The major lipids that make up the cell membrane are_______________?
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A. Triglycerides

B. Phospholipids

C. Fatty acids

D. Sphingomyelins

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