medical MCQs – Page 176

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 Review each marked answer and report any item that may be outdated or unclear.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

3501. Merkel cells are found in which of the following tissue ______________?
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A. Reticular of dermis

B. Hypodermis

C. Papillary layer of dermis

D. Epidermis

3502. Which of the following is correctly matched ?
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A. Succinate to furmarate -1 ATP is formed

B. Malate to oxaloacetate -1 ATP is formed

C. Isocitrate to oxalo succinate -1 ATP is formed

D. Succinyl CoA to succinate -1 ATP is formed

3503. Insulin acts on which enzyme in glycolysis ?
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A. Hexokinase

B. Adenylate kinase

C. Glucose 6 phosphatase

D. Glucokinase

3504. Bilirubin is produced from________________?
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A. Myoglobin

B. Haemoglobin

C. Gall bladder

D. A & B

3505. All of the following are substrates for gluconeogenesis except_______________?
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A. Glycerol

B. Oleic acid

C. Tryptophan

D. Alanine

3506. Osteoblasts appear basic gram staining due to______________?
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A. Acidic ground substance

B. Increased ribonucleic acid

C. Presence of basic ground substance

D. Increased mitochondria

3507. What is the thickness of the layer of primsless enamel found in primary teeth_____________?
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A. 50?m

B. 75?m

C. 25 ?m

D. 100?m

3508. Which of the following decidous molars bears the greatest resemblance to a premolar _____________?
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A. Maxillary second

B. Maxillary first

C. Mandibular first

D. Mandibular second

3509. Pulp chambers and roots canals in decidous teeth______________?
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A. Shallow and wide

B. Wide and narrow

C. Wide and deep

D. Shallow and narrow

3510. Fatty acid oxidation occurs in______________?
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A. Microsomes

B. Cytoplasm

C. All of the above

D. Mitochondria

3511. The normal value of serum potassium level is____________?
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A. 5-5.8 meq/L

B. 2.8-3.8 meq/L

C. 3.8-5 meq/L

D. 6-7.2 meq/L

3512. Lipid is required in the average diet because it________________?
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A. has a high caloric value

B. Provides essential fatty acid

C. aids in absorption of carbohydrates

D. is necessary for storage of carbohydrates

3513. In human body which of the following trace element is next to iron_______________?
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A. Ca++

B. Selenium

C. Zn++

D. Cu++

3514. The protein rich in basic amino acids, which functions in the packaging of DNA is chromosomes is______________?
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A. Hyaluronic acid binding protein

B. Collagen

C. Histone

D. Fibrinogen

3515. During phagocytosis the metabolic process called respiratory burst involves activation of_____________?
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A. Peroxidase

B. Oxidase

C. Dehydrogenase

D. Hydrolase

3516. Highest binding of iron in plasma is seen with___________?
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A. Transferrin

B. Ferritin

C. Hemoglobin

D. Ceruloplasmin

3517. Nor epinephrine is converted to epinephrine by______________?
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A. N-methylation

B. Dopamine hydroxylase

C. Dopa decarboxylase

D. O-methylation

3518. Increase in lactate and pyruvate is seen in deficiency of_____________?
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A. Retinotic acid

B. Pyridoxin

C. Niacin

D. Thiamine

3519. The highest ( longest ) and sharpest cusp on the decidous mandibular first molar is____________?
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A. Distolingual

B. Mesiobuccal

C. Mesiolingual

D. Distobuccal

3520. Peroxidase enzyme contain______________?
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A. Chromium

B. Calcium

C. Magnesium

D. Selenium

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