medical MCQs – Page 177

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 Review each marked answer and report any item that may be outdated or unclear.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

3521. In Niemann-Picks disease the following substrance accumulate in CNS in excess______________?
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A. Glycerosphingosides

B. Glycerophosphatides

C. Phosphoinositides

D. Phosphosphingosides

3522. Beginning of eruption of permanent tooth starts_____________?
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A. when root formation starts

B. When apical third root is still to be formed

C. When half of the root is still to be formed

D. After completion of root

3523. Which of these organelle functions as the digestive system of the cell ?
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A. Lysomes

B. Golgi apparatus

C. Rough endoplasmic reticulum

D. Mitochondria

3524. Which of the following is true about calcification of teeth ?
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A. Calcification of all permanent teeth complete at birth

B. Calcification of all primary teeth and few permanent teeth complete at birth

C. Calcification of primary teeth is almost complete at time of birth

D. Calcification of primary teeth starts around birth

3525. During phagocytosis, the metabolic process called respiratory burst involves the activation of_____________?
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A. Dehydrogenase

B. Hydrolase

C. Oxidase

D. Peroxidase

3526. Which is the poorest source of calcium among the following______________?
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A. Rice

B. Cows milk

C. Egg yolk

D. Human milk

3527. The largest mesiodistal diameter in primary dentition is____________?
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A. Mandibular2nd molar

B. Mandibular 1st molar

C. Maxillary 2nd molar

D. None of the above

3528. Which of the organelles contain DNA_________________?
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A. Ribsomes

B. Golgi apparatus

C. Nucleolus

D. Nucleus

3529. Which of the following is a phospholipid________________?
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A. Prostaglandin

B. Glycogen

C. Sphingomyelin

D. Oleic acid

3530. Normal blood PH is______________?
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A. 7.7 8.0

B. 7.38 7.4

C. 6.8 7.0

D. 7.0 7.12

3531. Which one of the following human tissues contains the greatest amount of body glycogen ?
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A. Kidney

B. Cardiac muscle

C. Liver

D. Skeletal muscle

3532. A relatively component of the electron transporting respiratory chain is_____________?
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A. Flavoprotein

B. Ubiquinone

C. Cytochrome Cl

D. Cytochrome A

3533. Dentition of humans is_______________?
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A. Omnivorous

B. None of the above

C. Herbivorous

D. Carnivorous

3534. Which of the following is not a ketone body______________?
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A. Beta hydroxybutyric acid

B. Acetone

C. Acetocetate

D. Acetic acid

3535. Limiting factory for fatty acid synthesis_________________?
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A. Aceto acetate synthetase

B. Acyl transferase

C. Biotin

D. Acetyl CoA carboxylase

3536. Difference between primary and permanent enamel is_______________?
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A. No difference in enamel, difference in dentin

B. in mineral content

C. None of the above

D. In prism arrangement

3537. In molecular cloning, Blue White screening is used for_______________?
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A. To screen for recombinant vectors

B. To detect gene mutations

C. To identify desired chromosomal DNA insert in plasmid vectors

D. To detect host DNA in situ

3538. Rate limiting step in cholesterol synthesis is_______________?
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A. HMG CoA lyase

B. Mevalonate synthetase

C. HMG CoA synthetase

D. HMG CoA reductase

3539. The most common sequence of eruption of the permanent maxillary teeth in children is_______________?
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A. 2-3-1-6-7-5-4-8

B. 6-1-2-3-4-5-7-8

C. 6-1-2-4-3-5-7-8

D. 1-6-2-3-4-7-5-8

3540. Bile acids are formed from__________?
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A. Aminoacids

B. Lipoproteins

C. Bilirubin

D. Cholesterol

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