M2

Question 1

IgD is:
A. Present mainly as a surface receptor on B-cells
B. Resistant to proteolytic degradation
C. Abundantinmilk&secretions
D. Pentameric

Answer 1

A

Question 2

An _____ is usually a protein or glycoprotein molecule that the body recognizes as “non-self”

Answer 2

Immunogen

Question 3

Which of the following marker is found on the T cell subset known as helper:
A. CD8 B. CD3 C. DC11 D. CD4

Answer 3

D

Question 4

Cytotoxic T lymphocytes express:
A. CD3only
B. CD3 and CD4
C. CD3 and CD8
D. CD3, CD8 and CD4

Answer 4

C

Question 5

One fab fragment consists of:
A. Two L chains
B. One L chain and an entire H chain
C. Two H chains
D. One L chain and one-half of an H chain

Answer 5

D

Question 6

B cell has receptor on its surface which is:
A. Dimeric IgM
B. Monomeric IgM
C. Bcellreceptor
D. MonomericIgG

Answer 6

B

Question 7

Which selection includes all the major components of the lymphatic system:
A. Thoracic duct, right lymphatic duct, and lymph
B. Spleen,thymus,andtonsils
C. Lymphocytes, lymph, and lymph nodes
D. Lymphatic cells, lymph, and lymphatic vessels

Answer 7

D

Question 8

Nonspecific host defenses that exist prior to exposure to an antigen is called:

Answer 8

A. Innate immunity

Question 9

The overall strength of binding between an antigen and its antibody is called:

Answer 9

Avidity

Question 10

Which of the following cells of the immune system do not perform phagocytosis?
A. Macrophage B. Basophil
C. Neutrophil D. Eosinophil

Answer 10

B