Microbiology Mcqs

Secretory Ig is_______________?

• (A)  IgA
• (B)  IgE
• (C)  IgM
• (D)  IgD

Answer

Submitted By :Ali Uppal

The binding site for complement on the IgG molecule is in the________________?

• (A)  VL domian
• (B)  CL domian
• (C)  CH1 domian
• (D)  CH2 domian

Answer

Submitted By :Ali Uppal

The immediate type of hypersensitivity in which histamine doses not play a major role is______________?

• (A)  Urticaria
• (B)  Asthma
• (C)  Anaphylaxis
• (D)  Arthus reaction

Answer

Submitted By :Ali Uppal

Detergents used to disinfect dental instruments in the office kill bacteria by interfering with functional of the cell______________?

• (A)  wall
• (B)  nucleus
• (C)  membrane
• (D)  Capsule

Answer

Submitted By :Ali Uppal

Endotoxins differ from exotoxins in that endotoxins______________?

• (A)  are proteins
• (B)  are heat labile
• (C)  are highly antigenic
• (D)  activate complement by the alternate pathway

Answer

Submitted By :Ali Uppal

Rideal Walker test is used to determine the efficiency of the_____________?

• (A)  Disinfectant
• (B)  Moist heat sterilisation
• (C)  Antibiotics
• (D)  Dry heat sterilization

Answer

Submitted By :Ali Uppal

All are not true for cultivation of anaerobic organisms except_______________?

• (A)  Incubator
• (B)  anaerobic jar
• (C)  Refrigerator
• (D)  Centrifuge

Answer

Submitted By :Ali Uppal

Multiple drug resistance of bacteria depends on which of the following_______________?

• (A)  Resistance transfer factor (RTF)
• (B)  Colicigenic factor (Col)
• (C)  Fertility factor (F+)
• (D)  All of the above

Answer

Submitted By :Ali Uppal

The major antiseptic value of soap lies in its ability to_____________?

• (A)  Kill mircobes
• (B)  Remove microbes
• (C)  Inhibit microbial growth
• (D)  Dehydrate microbial cells

Answer

Submitted By :Ali Uppal

Which of the following antibacterial substance is present in eggs and saliva ?

• (A)  Lysozyme
• (B)  Secretozyme
• (C)  Albumin
• (D)  Isozyme

Answer

Submitted By :Ali Uppal