medical MCQs – Page 170

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 Review each marked answer and report any item that may be outdated or unclear.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

3381. Which is not a oligosaccharide sugar ?
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A. Galactose

B. Lactose

C. Sucrose

D. Maltose

3382. Which of the following tissues have no reparative capacity______________?
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A. Periodontal ligament

B. Dentin

C. Enamel

D. Cementum

3383. Membrane coating granules may_____________?
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A. Appear as circular with an amorphous core in keratinized epithelium

B. Packed with tonofilaments

C. Helps in adhesion of fully keratinized epithelial cells

D. Originate from golgi system

3384. The range of level of fluoride secreted by the glands into the mouth is_____________?
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A. 0.004-0.005 ppm

B. 0.007-0.005 ppm

C. 0.007-0.08 ppm

D. 0.006-0.007 ppm

3385. Muscle glycogen, which cannot contribute to blood glucose due to the absence of which enzymes ?
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A. Debranching enzyme

B. Branching enzyme

C. Phosphoglutamase

D. Glucose-6-phosphotase

3386. Biotin is required for the activity of_____________?
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A. Succinate thiokinase

B. Pyruvate carboxylase

C. Phosphohexose isomerase

D. Lactate dehydrogenase

3387. Competitive enzyme inhibition will cause_____________?
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A. Decrease of km and increase of Vmax

B. increase of km and increase of Vmax

C. Increase of km and Unchanged of Vmax

D. Decrease of km and decrease of Vmax

3388. An essential for the conversion of glucose to glycogen in liver is____________?
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A. UTP

B. Guanosine

C. Pyruvate Kinase

D. GTP

3389. Ubiqultin is involved in_____________?
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A. Intracellular proteolysis

B. Electron transport chain

C. Transport of ATP

D. Protein folding

3390. Cells of the spinous layer are generally_______________?
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A. None of the above

B. Smaller than the basal cells

C. Larger than the basal cells

D. same size as that of basal cells

3391. On microscopic examination enamel rods have___________?
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A. Lanullate appearance in cross-section

B. Paddle appearance in cross section

C. Key hole appearance in cross section

D. None of the above

3392. Which enzyme is associated with the mineralization_____________?
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A. Amino peptidase

B. Adenosine triphosphate

C. Alkaline phosphatase

D. Acid phosphatase

3393. In which of the following papillae of the tongue are the taste buds predominantly located ?
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A. Circumvallate

B. Fungiform

C. Filliform

D. Foliate

3394. Calcified tissue is absent in______________?
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A. Pulp

B. Dentin

C. Cementum

D. Enamel

3395. Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?
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A. 1:02

B. 1:1

C. 1:04

D. 2:01

3396. Oligosaccharide is________________?
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A. Glucose

B. Maltose

C. Dextrin

D. Gructose

3397. Thin leaf like structures that extend from enamel surface in to DEJ are____________?
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A. Enamel lamella

B. Perikymata

C. Enamel tufts

D. Enamel spindles

3398. Enzyme that catalyses the transfer of a molecule group from one molecule to another is_____________?
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A. Transferases

B. Oxidases

C. LIpases

D. Peptidases

3399. In glycolysis ATP is produced by the following enzyme______________?
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A. Phosphoglycerate kinase

B. Enolase

C. Phosphohexose isomerase

D. Hexokinase

3400. The enzyme phosphofructo kinase-1 is strongly activated by_______________?
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A. Citrate

B. Cyclic AMP

C. Adenosine tri phosphate

D. Fructose 2,6 bis phosphate

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