medical MCQs – Page 189

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 Review each marked answer and report any item that may be outdated or unclear.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

3761. Which of the following statements about the action of the somatomedin is true ?
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A. They mediated the local effects of Somatostatin

B. They antagonize the effect of insulin

C. They promote growth of bone and cartilage

D. They inhibit protein synthesis

3762. Mannose 6 phosphate containing freshly synthesized proteins are directed to_____________?
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A. Lysosomes

B. Golgi apparatus

C. Mitochondria

D. Nucleus

3763. The zygomatic bone does not articulate with________________?
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A. Maxillary bone

B. Temporal bone

C. Nasal bone

D. Frontal bone

3764. Secretin is secreted by_____________?
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A. Stomach

B. Pancreas

C. Duodenum

D. Liver

3765. Tryptophan load test helps in the evaluation of deficiency of the vitamin______________?
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A. Folic acid

B. Niacinamide

C. Cyano cobolamine

D. Pyridoxine

3766. In centric occlusion, the cusp tip of the maxillary canine is in alignment with which mandibular tooth_____________?
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A. Facial embrasure of canine and premolar

B. Distal ridge of the cusp of mandibular canine

C. Mesial ridge on the facial cusp of mandibular first premolar

D. incisal embrasure of canine and premolar

3767. Ammonia is detoxified in liver to form____________?
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A. Creatinine

B. Glutamine

C. Urea

D. Uric acid

3768. Gastrin is produced by _____________?
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A. All

B. Pancreas

C. Pituitary

D. Gastric antral cells

3769. Of the following is a reflex mediated by vagus ?
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A. Bile flow from liver

B. Pancreatic secretion of bicarbonate

C. Cephalic phase of gastric secretion

D. Mucous secretion from the Brunners glands

3770. In normal occlusion , with which grooves / surface of the permanent mandibular first molar does the mesiobuccal cusp of the permanent maxillary first molar occlude______________?
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A. Distobuccal groove

B. Mesial surface

C. Transverse groove

D. Mesiobuccal surface

3771. Histidine is converted to histamine by_____________?
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A. Transamination

B. Decarboxylation

C. Hydroxylation

D. Reduction

3772. Pancreatic juice rich in water and electrolytes but poor in enzymes is secreted in response to ______________?
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A. Proteins

B. Secretin

C. Cholecystokinin

D. Pancreatozymine

3773. Pepsinogen is activated by ___________________ ?
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A. Enterokinase

B. Chymotrypsin

C. Trypsin

D. Low pH

3774. Major source of ammonia in the kidney is___________?
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A. Glutamate

B. Glutamine

C. Urea Aspartate

D. Aspartate

3775. Cholagogues are the substances, which cause______________?
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A. Contraction of the gallbladder

B. Increase secretion of bile

C. Increase concentration of bile

D. Favours acidification of bile

3776. Tertiary structure of protein is maintained by all except______________?
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A. Ionic bond

B. Disulphide bond

C. H2 bond

D. None of the above

E. Hydrophobic

3777. Normal dentition in centric occlusion, opposing contact may be expected at_____________?
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A. Buccal slopes of lingual cusps of maxillary posterior teeth

B. Buccals slopes of buccal cusps of maxillary posterior teeth

C. All slopes of lingual cusps of mandibular posterior teeth

D. Lingual slopes of lingual cusps of mandibular posterior teeth

3778. The catecholamines secreted by adrenal medulla______________?
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A. Increases the blood glucose level by favoring glycogenolysis in blood and muscle cells

B. Are under the control of parasy

C. Increase the splanchnic blood flow

D. Decrease the level o free fatty acids and ketone bodies

3779. Who is known for his work on scurvy ?
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A. John snow

B. Fracastorius

C. Edward Jenner

D. James lind

3780. All are seen in Cushing s syndrome except_______________?
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A. Hypertension

B. Hypoglycemia

C. Truncal obesity

D. Poor wound healing

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