Immunology Chp 1

Question 1

Antibodies recognize ______________ (intracellular? or extracellular?) antigens, whereas cytotoxic T lymphocytes recognize antigens produced by ____________ (intracellular? or extracellular?) microbes.

Answer 1

1. ) Extracellular

2. ) Intracellular

Question 2

B lymphocytes mature in this part of the body ______ whereas T lymphocytes mature in _______________.

Answer 2

1. ) Bone marrow

2. ) Thymus

Question 3

CTL stands for _____________.

Answer 3

Cytotoxic T lymphocytes

Question 4

________ are called macrophages when they migrate to tissues.

Answer 4

Monocytes

Question 5

Kupfer cells and osteoclasts are examples of

Answer 5

Monocytes

Question 6

The size of the thymus is largest in which age group?

a. Newborn b. 10 year-old c. 20 year-old d. 30 year-old e. 60-year old

Answer 6

B.

Question 7

Where in the lymph node are B cells located? ______.

a. cortex (follicles) b. parafollicular cortex
c. medulla d. all of these

Answer 7

A.

Question 8

True/False. Secondary (adaptive) immune response is more effective than the primary (innate) immune response.

Answer 8

True

Question 9

_____________ are a large group of chemical mediators(mostly proteins) that are important in the body’s defense against pathogens.

Answer 9

Cytokines

Question 10

Arrange the following cells to represent the different stages in the life history of lymphocytes in the correct order:

a. Memory cells b. naïve cells
c. activated (effector) cells

Answer 10

b, c, a

Question 11

Rearrange the following steps that are involved in adaptive immunity:

a. Contraction b. memory c. activation phase
d. recognition phase e. antigen elimination

Answer 11

D, C, E, A, B

Question 12

Ensures that distinct antigens elicit specific responses ______

Answer 12

Specificity

Question 13

Enables immune system to respond to a large variety of antigens ______

Answer 13

Diversity

Question 14

Leads to enhanced responses to repeated exposures to the same antigens ______

Answer 14

Memory

Question 15

Increases number of antigen-specific lymphocytes to keep pace with microbes ______

Answer 15

Clonal Expansion

Question 16

Generates responses that are optimal for defense against different types of microbes ______

Answer 16

Specialization

Question 17

Allows immune system to respond to newly encountered antigens ______

Answer 17

Contraction and homeostasis

Question 18

Prevents injury to the host during responses to foreign antigens ______

Answer 18

Non- reactivity to self

Question 19

Does Natural Killer Cells belong to Innate or Adaptive immunity?

Answer 19

Innate

Question 20

Types of Immune Responses: A person receiving Rh antibody such as Rho Gam is an example of which type of immunity? ________________

Answer 20

Induced passive immune response

Question 21

Types of Immune Responses: The presence of IgA and IgG in a new born is an example of which type of immunity? ___________________.

Answer 21

Natural Passive immune response

Question 22

Types of Immune Responses: Receiving flu shot is an example of _____ immunity.

Answer 22

Induced active immune response

Question 23

All of the following are lymphocytes EXCEPT...
A. T lymphocytes
B. Plasma Cells
C. Natural Killer cells
D. Macrophages

Answer 23

D. Macrophage