MCQ on Innate Immunity || Basic Immunology Quiz

1.A polymorphonuclear neutrophil (PMN):
Is a bone marrow stem cell.
Is closely similar to a mast cell.
Contains microbicidal cytoplasmic granules.
Is not a professional phagocytic cell..

2.Neutrophil defensins are
Anti-toxins.
Oxygen-dependent.
Enzymes.
Peptide antibiotics.

3. Complement component C3 is cleaved by:
C3b
Factor B
C3bBb
Factor H

4. C3b:
Is chemotactic.
Is an anaphylatoxin
Opsonizes bacteria
Directly injures bacteria

5.Acute inflammation characteristically involves:
Constriction of arterioles.
Influx of macrophages.
Influx of mast cells.
Influx of neutrophils.

6.Interferons:
Induce enzyme synthesis in the target cell.
Only affect infected cells.
Are divided into 5 main families.
Only affect infected cells.

7. Lysozyme:
Is released by mast cells.
Splits peptidoglycan.
Is a cytoplasmic organelle.
Is a proteolytic enzyme.

8.Eosinophils do not:
Contain a major basic protein.
Have C3b receptors
Stain with basic dyes.
Contain peroxidase

9.Acute inflammation can be initiated by:
Mast cell activation.
An increase in vascular permeability.
Lysozyme
Influx of neutrophils

10. Several of the complement components are:
Glycolipids
Antibodies
Enzymes
Hormones

Score =
Correct answers: