medical MCQs – Page 166

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 Review each marked answer and report any item that may be outdated or unclear.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

3301. Resorption of dental tissue is caused by_____________?
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A. Odontoclasts

B. Odontoblasts

C. Osteoclasts

D. Osteoblasts

3302. Which of the following has immune function in the oral mucous membrane_______________?
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A. Melanocyte

B. Langerhan cell

C. Keratinocyte

D. Merkel cells

3303. Which acid is formed in the citric acid cycle ?
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A. Oxaloacetic acid

B. Glutamic acid

C. None of the above

D. Nitric acid

3304. The thinnest epithelium of oral cavity is found in the____________?
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A. Sublingual mucosa (floor of mouth)

B. Lingual gingiva

C. Oral surface of lip

D. Buccal gingiva

3305. Neonatal lines are seen in_______________?
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A. Enamel of premolars

B. Enamel of permanent incisors

C. Dentin of all teeth, as if is formed first

D. Enamel of deciduous incisiors

3306. Shape of enamel rod is______________?
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A. Square

B. None of the above

C. Key hole or paddle shaped

D. Round

3307. Mutation in the oxidative enzymes (peroxisomes) could lead to_______________?
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A. Epidermolysis bullosa

B. Lebers neuropathy

C. Zellwegers syndrome

D. Gauchers disease

3308. The combination of main supporting enzyme is called______________?
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A. Apoenzyme

B. Coenzyme

C. Holoenzyme

D. Constitutive enzyme

3309. Fraction of CPK is an enzyme that is elevated in a myocardial infarct is____________________?
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A. MM fraction

B. MB fraction

C. BB fraction

D. Both MM and BB fraction

3310. The key enzyme of gluconeogenesis is______________?
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A. Phosphoenol pyruvate carboxykinase

B. Pyruvate carboxylase

C. Glucose 6 phosphatase

D. Fructose 1,6 disphosphatase

3311. Which papillae are completely keratinized______________?
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A. Foliate

B. Fungiform

C. Filiform

D. Circumvallate

3312. Enamel rods at the cervical area at the occlusal edge and incisal lip in permanent teeth are______________?
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A. Curved

B. Bent

C. Straight

D. Shallow

3313. Which of the following structures is not of ectodermal origin_______________?
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A. Enamel lamellae

B. Enamel spindles

C. Enamel tufts

D. Hunter schreger bands

3314. Benzidine test is positive with the enzyme______________?
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A. Hydrolase

B. Peroxidase

C. Dehydrogenase

D. Cytochrome oxidase

3315. Fructose intolerance is to_____________?
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A. Fructose only

B. Fructose and glucose

C. Fructose and sucrose

D. Sucrose only

3316. An example of layses is_____________?
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A. Glutamine synthetase

B. Amylase

C. Cholinesterase

D. Fumarase

3317. Glucose 6 phosphatase deficiency is seen in______________?
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A. Pompers disease

B. McArdles syndrome

C. Downs syndrome

D. Von Gierkes disease

3318. The small ridges, perikymata, seen on facial surfaces of canines are the result of_____________?
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A. Interstitial development

B. Hypoplacification

C. Hyperplasia

D. Normal development

3319. Enzyme + coenzyme constitutes_____________?
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A. Apoenzyme

B. Proenzyme

C. Protoenzyme

D. Holoenzyme

3320. Megnesium is needed for the activity of which enzymes ?
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A. Phosphatase

B. Aldolase

C. Dismutase

D. ATPase

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