medical MCQs – Page 369

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 Review each marked answer and report any item that may be outdated or unclear.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

7361. Fructose intolerance is to_____________?
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A. Fructose and sucrose

B. Fructose and glucose

C. Fructose only

D. Sucrose only

7362. Sites where HMP shunts can occur include_______________?
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A. Lactating mammary gland

B. Liver

C. All of the above

D. WBC

E. Testes

7363. Enzymes stored in muscle is________________?
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A. SGPT

B. Alkaline phosphatase

C. CPK

D. SGOT

7364. The activity of this plasma enzyme is responsible virtually for all plasma cholesterol esters in humans_______________?
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A. Phospho mevalonate kinase

B. HMG CoA reductase

C. Lecithin cholesterol acyl transferase (LCAT)

D. Pyrophospho mevalonate decarboxylase

7365. One molecule of acetyl Co-A gives rise to ________ ATP molecules?
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A. 32

B. 8

C. 12

D. 2

7366. The enzyme phosphofructo kinase-1 is strongly activated by_______________?
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A. Fructose 2,6 bis phosphate

B. Citrate

C. Adenosine tri phosphate

D. Cyclic AMP

7367. The enzymes that catalyses the same reaction but differ in physical properties are called as_____________?
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A. Pro enzyme

B. Co-enzyme

C. Iso enzyme

D. Holoenzyme

7368. A relatively component of the electron transporting respiratory chain is_____________?
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A. Flavoprotein

B. Cytochrome A

C. Ubiquinone

D. Cytochrome Cl

7369. Ubiqultin is involved in_____________?
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A. Intracellular proteolysis

B. Electron transport chain

C. Transport of ATP

D. Protein folding

7370. Oligosaccharide is________________?
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A. Dextrin

B. Maltose

C. Gructose

D. Glucose

7371. Competitive enzyme inhibition will cause_____________?
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A. Decrease of km and increase of Vmax

B. Decrease of km and decrease of Vmax

C. Increase of km and Unchanged of Vmax

D. increase of km and increase of Vmax

7372. The end product of glycolysis under anaerobic conditions is_______________?
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A. Pyruvic acid

B. Acetoacetic acid

C. Oxaloacetic acid

D. Lactic acid

7373. All of the following are substrates for gluconeogenesis except_______________?
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A. Oleic acid

B. Alanine

C. Glycerol

D. Tryptophan

7374. Which metabolite of TCA cycle is used in detoxification of ammonia in brain_____________?
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A. Glycine

B. Alpha ketoglutarate

C. Ornithine

D. Oxalocetate

7375. Coenzyme responsible for single carbon transfer is______________?
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A. Acetyl co enzyme A

B. THF4

C. Pyridoxine

D. Biotin

7376. Which of the following statement is TRUE? The hydrolysis of lactose yields glucose and galactose_____________?
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A. The hydrolysis of lactose yields glucose and galactose

B. The hydrolysis of sucrose yields only glucose

C. The hydrolysis of maltose yields glucose and fructose

D. All of the above statements are true

7377. During conversion of glycerol to pyruvic acid, the first glycolytic intermediate to form is_______________?
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A. 2- phospho glyceric acid

B. Dihydroxy acetone phosphate

C. 3- phospho glyceric acid

D. 3- phospho glyceralehyde

7378. Krebs cycle does not occur in______________?
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A. RBC

B. All of the above

C. Muscle

D. Heart

7379. Glucose 6 phosphatase deficiency is seen in______________?
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A. McArdles syndrome

B. Downs syndrome

C. Von Gierkes disease

D. Pompers disease

7380. Enzymes concerned with the citric acid cycle are found in______________?
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A. Nucleus

B. Non-particulate cytoplasm

C. Mitochondria

D. Ribosomes

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