Regilar Exam 01, Penta 10 (Radius)

1. Disposable syringes are sterilized by

A. Formaldehyde

B.Hexachloride

C.Ethylene oxide

D.Ultraviolet radiation

2.Which of the following immunity is obtained during a lifetime?

A.Active immunity

B. Acquired immunity

C. Passive immunity

D.None of the above.

3. How many types of antibodies are there?

A.Two

B. Three

C. Four.

D..Five.

4.Which of the following cells is involved in cell-mediated immunity?

A. Leukaemia

B.T cells

C. Mast cells

D.Thrombocytes

5. Which of the following statements is true about the IgM of humans?

A. IgM can cross the placenta

B.IgM can protect the mucosal surface

C. IgM is produced by high-affinity plasma cells

D.IgM is primarily restricted in the circulation

6.Interferons are

A . Physiological barriers

B.Cellular barriers

C.Cytokine barriers

D. Physical barriers

7. Which of the following cells of the immune system do not perform phagocytosis?

A.Basophil

B. Macrophage

C..Eosinophil

D.Neutrophil

8. Monocytes differentiate into which kind of phagocytic cells?

A.Neutrophil

B. B cell

C. T cell

D. Macrophage

9. Naturally acquired active immunity would be most likely acquired through which of the following processes?

A. vaccination

B. Drinking colostrum

C.infection with disease causing organism followed by recovery.

D. Natural birth

10.B and T cells are produced by stem cells that are formed in:

A. The spleen

B. The liver

C. The circulatory system

D. Bone marrow

11. B cells mature in the……….. while T cells mature in the

A. Thymus/bone marrow and gut associated lymphoid tissue (GALT)

B. Liver/Kidneys

C. Spleen/bone marrow and GALT

D. . Bone marrow and GALT/Thymus

12. Which of the following convey the longest lasting immunity to an infectious agent?

A.Naturally acquired passive immunity

B. Artificially acquired passive immunity

C. Naturally acquired active immunity

D. All of these

13.Which of the following immune cells/molecules are most effective at destroying intracellular pathogens?

A. Antibodies

B. B cells

C. T cytotoxic cells

D. Antibodies

14.B cells that produce and release large amounts of antibody are called:

A. Plasma cells

B. Killer cells

C. Basophils

D.Killer cells

15. The specificity of an antibody is due to

A.The Fc portion of the molecule

B. . The heavy chains

C.The variable portion of the heavy and light chain

D. Its valence

16. Monoclonal antibodies recognize a single:

A. Epitope

B.B cell

C. Bacterium

D.Antigen

17.Cell mediated immunity is carried out by………….. While humoral immunity is mainly carried out by………………..

A. T cells/B cells

B. Antibodies/Antigens

C.Epitopes/Antigens

D. B cells/T cells

18. The ability of the immune system to recognize self antigens versus nonself antigen is an example of:

A. . Tolerance

B.. Specific immunity

C. Cell mediated immunity

D. Antigenic immunity

19. Example of type IV hypersensitivity:

A.Goodpasture's syndrome

Contact dermatitis.

C. . Pernicious anaemia

D. Pemphigus vulgaris

20. Lonizing radiation is :

A.Ultraviolet (UV) rays.

B. Visible light.

C. microwave.

D. Gamma ray

21. Delayed of radiation hazard is :

A.cataract

B.CNS syndrome

C. Bone necrosis.

D. None of these

22. Which one helps opsonization :?

A.C3a

B.C7

C. C3b

D. C5b

23.Not a cause of Obstructive shock is;

A.Anaphylactic shock

B.Tension pneumothorax

C.Cardiac tamponade,

D.pulmonary embolism,

24. Which Is not an Antigen presenting cell?

A.T- lymphocyte

B Dendritic cells

C.B-lymphocyte

D. Microglia

25.Which antibody has high molecular weight?

A.Ig A

B.Ig M

C.Ig G

D. Ig E

Regilar Exam 01, Penta 10 (Radius)

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