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Medical MCQs with Explanations

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1451MedicalMedium

Which of the following penicillins has the best gram negative spectrum?

APenicillin V

Ampicillin

CCefixime

DMethicillin

Correct answer

B. Ampicillin

Explanation

The correct answer is Ampicillin.

1452MedicalMedium

Widely accepted theory of dental caries________?

AAcidogenic theory

BProteolytic theory

CProteolytic chelation theory

DAutoimmune theory

Correct answer

A. Acidogenic theory

Explanation

The correct answer is Acidogenic theory.

1453MedicalMedium

The culture media for fungus is________?

ASabourauds medium

BChocolate agar medium

CNNN medium

DTellurite medium

Correct answer

A. Sabourauds medium

Explanation

The correct answer is Sabourauds medium.

1454MedicalMedium

The organic lining of the calcified dentinal tubules is known as________?

ALamina lucida

BLamina densa

CLamina propria

DLamina limitans

Correct answer

D. Lamina limitans

Explanation

The correct answer is Lamina limitans.

1455MedicalMedium

What is the disadvantage of using composites as restorative material?

ADecreased thermal conductivity

BNone of the above

CDecreased wear resistance

DIncreased thermal conductivity

Correct answer

C. Decreased wear resistance

Explanation

The correct answer is Decreased wear resistance.

1456MedicalMedium

Which of the following does not occur in High Copper Amalgam?

AChemical Corrosion

BCorrosion does not occur at all

CElectrochemical Corrosion

DPenetrating Corrosion

Correct answer

D. Penetrating Corrosion

Explanation

The correct answer is Penetrating Corrosion.

1457MedicalMedium

The work of breathing________?

Ais inversely related to lung compliance

Bdecreased in lying posture

Cis not affected by respiratory

Dremains constant during exercise

Correct answer

A. is inversely related to lung compliance

Explanation

The correct answer is is inversely related to lung compliance.

1458MedicalMedium

The virus which causes Aplastic anemia in chronic hemolytic disease is________?

AHepatitis

BAdeno

CParvo virus

DEB virus

Correct answer

C. Parvo virus

Explanation

The correct answer is Parvo virus.

1459MedicalMedium

All of the following is true about dentinal tubules except________?

AThe diameter of dentinal tubule is more at pulpal layer than outer layer

BThe bonding is more on the inner layer of dentin compared to outer surface

CInner pulpal layer contains more dentinal tubules than outer dentin layer

DThe diameter of dentin tubules ranges from 5 to 7μm

Correct answer

D. The diameter of dentin tubules ranges from 5 to 7μm

Explanation

The correct answer is The diameter of dentin tubules ranges from 5 to 7μm.

1460MedicalMedium

The first product of glycogenolysis is________?

AGlucose 1- phosphatase

BFructose 1- phosphatase

CGlucose 1,6 diphosphatase

DGlucose 6 phosphatase

Correct answer

A. Glucose 1- phosphatase

Explanation

The correct answer is Glucose 1- phosphatase.

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