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Medical MCQs with Explanations

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3371MedicalMedium

The corrct order of microscopic zones of dentinal caries starting from the D.E junction is________?

ABacterial invasion, decalcification zone, zone of sclerosis

BZone of sclerosis, decalcification zone, bacterial invasion

CDecalcification zone, zone of scierosis, backterial invasion

DZone of sclerosis, backterial invasion, decalcification zone

Correct answer

A. Bacterial invasion, decalcification zone, zone of sclerosis

Explanation

The correct answer is Bacterial invasion, decalcification zone, zone of sclerosis.

3372MedicalMedium

A protoplast is best characterized as a bacterial cell________?

AUniquely sensitive to penicillin

Bwith a cell wall but free of a capsule

Ccontaining a cell wall and a capsule

DFree of a cell wall and a capsule

Correct answer

D. Free of a cell wall and a capsule

Explanation

The correct answer is Free of a cell wall and a capsule.

3373MedicalMedium

Opacity around colonies of Clostridium perfringens is due to________?

ADesmolase

BCytokinin

CLecithinase

DTheta toxin

Correct answer

C. Lecithinase

Explanation

The correct answer is Lecithinase.

3374MedicalMedium

The mechanism of genetic transfer where a phage serves as a vehicle is________?

AConjugation

BTranslation

CLysogeny

DTransduction

Correct answer

C. Lysogeny

Explanation

The correct answer is Lysogeny.

3375MedicalMedium

NSAID which undergoes enterohepatic circulation________?

APiroxicam

BAspirin

CIbuprofen

DPhenylbutazone

Correct answer

A. Piroxicam

Explanation

The correct answer is Piroxicam.

3376MedicalMedium

What is the glomerular filtration rate?

A125 ml/min

B175 ml/min

C100 ml/min

D150 ml/min

Correct answer

A. 125 ml/min

Explanation

The correct answer is 125 ml/min.

3377MedicalMedium

What is the recommended for condensation of dental amalgam?

A25 lb

B35 pounds

C3 pounds

D15 lb

Correct answer

C. 3 pounds

Explanation

The correct answer is 3 pounds.

3378MedicalMedium

Which one of the following enteric organisms is anaerogenic and non motile?

AKlebsiella pneumonia

BSalmonella typhi

CShigella sonnei

DProteus mirabilis

Correct answer

C. Shigella sonnei

Explanation

The correct answer is Shigella sonnei.

3379MedicalMedium

A factor with a mucopoly saccaride, present in liver, presenting in platelet aggregation is________?

AAcetylsalicylic acid

BProthrombin

CHeparin

DPlasmin

Correct answer

C. Heparin

Explanation

The correct answer is Heparin.

3380MedicalMedium

Which of the following is related to an enzyme deficiency and involves periodontal destruction around primary teeth________?

ACyclic neutropenia

BHypophosphatasia

CJuvenile Periodontitis

DPapillion Lefevre syndrome

Correct answer

B. Hypophosphatasia

Explanation

The correct answer is Hypophosphatasia.

The corrct order of microscopic zones of dentinal caries starting from the D.E junction is________?

ABacterial invasion, decalcification zone, zone of sclerosis

BZone of sclerosis, decalcification zone, bacterial invasion

CDecalcification zone, zone of scierosis, backterial invasion

DZone of sclerosis, backterial invasion, decalcification zone

Correct answer

A. Bacterial invasion, decalcification zone, zone of sclerosis

Explanation

The correct answer is Bacterial invasion, decalcification zone, zone of sclerosis.