Question

Multiple Choice Questions

1. The natural, nonspecific resistance of the body to foreign invaders. First line of defense

a. Innate immunity

b. Adaptive immunity

c. Component immunity

d. High immunity

2. How do T cell help the body's immune system?

a. Kill by contact

b. Synthesize antibodies

c. Immobilize antigens via contacting their immunoglobins

d. None of the above

3. Adaptive immunity is also called_____________.

a. Acquired immunity

b. Advanced immunity

c. Learned immunity

d. Subjective immunity

4. Match the following components of the immune system will their function:

Macrophages –

Phagocytosis –

Natural Killer Cells –

Antigen –

B-cell Humoral Response –

Epitope –

Monoclonal Antibodies –

Polyclonal Antibodies –

Cytokines –

Hypersensitivity –

A. antibodies made by identical immune cells-all from a parent cell-bind to same epitope

B. bind to multiple epitopes and are made by several different plasma cells

C. part of antigen molecule where antibody attaches itself

D. engulf and digest bacteria and reduce inflammation

E. type of lymphocyte that is critical to innate immunity due to its rapid response to virus infected cells

F. Targets free antigens, produces antibodies

G. Cell uses plasma membrane to remove pathogens and cellular debris

H. Refers to excessive, undesirable reactions produced by normal immune system

I. Substance foreign to the body that triggers immune response

J. Glycoproteins that are produced by one cell and alter the function of another cells

Please answer each question above as stated. I would like to double check my homework answers before I them in. Thank you!

Answer 1

1. The correct option is a) . Innate immunity is an immunological subsystem that comprises the cells and mechanisms that provide the first line of defence from infection in a non-specific manner.

2. The correct option is a) .These multifunctional cells have the ability to:

- Scan the intracellular environment for foreign invaders

- Directly kill virally or bacterially infected cells

- Naturally eradicate cancer cells

- Activate and help other immune cells that ingest germs or that make anti-infection molecules called antibodies

- Remember a germ that they encountered decades ago

3. The correct option is a) . Adaptive immunity is also called as acquired immunity . It is protection from an infectious disease agent that is mediated by B- and T- lymphocytes following exposure to specific antigen, and characterized by immunological memory.

4. Correct Match :-

Macrophages – G ) Cell uses plasma membrane to remove pathogens and cellular debris

Phagocytosis – D) engulf and digest bacteria and reduce inflammation

Natural Killer Cells –E) Type of lymphocyte that is critical to innate immunity due to its rapid response to virus infected cells

Antigen –I ) Substance foreign to the body that triggers immune response

B-cell Humoral Response – F ) Targets free antigens, produces antibodies

Epitope –C ) part of antigen molecule where antibody attaches itself

Monoclonal Antibodies –A) antibodies made by identical immune cells-all from a parent cell-bind to same epitope

Polyclonal Antibodies –B) bind to multiple epitopes and are made by several different plasma cells

Cytokines – J) Glycoproteins that are produced by one cell and alter the function of another cells

Hypersensitivity –H ) Refers to excessive, undesirable reactions produced by normal immune system