Biology Test Immunology

Question 1

What is the difference between innate and adaptive immunity?

Accepted Answer

Innate is non-specific and immediate; adaptive is specific and develops over time

Answer

Innate develops slowly; adaptive is immediate

Answer

They are the same system with different names

Answer

Innate fights viruses only; adaptive fights bacteria only

Question 2

Which type of white blood cell produces antibodies?

Accepted Answer

B lymphocytes (B cells)

Answer

T lymphocytes (T cells)

Answer

Neutrophils

Answer

Macrophages

Question 3

What is the function of helper T cells?

Accepted Answer

To coordinate the immune response by activating other immune cells

Answer

To directly kill infected cells

Answer

To produce antibodies

Answer

To engulf pathogens

Question 4

What is an antigen?

Accepted Answer

A molecule that triggers an immune response

Answer

A type of antibody

Answer

A white blood cell

Answer

A type of vaccine

Question 5

How do vaccines work?

Accepted Answer

By exposing the immune system to weakened or inactive pathogens to build memory

Answer

By killing all pathogens in the body

Answer

By strengthening the skin barrier

Answer

By increasing white blood cell count permanently

Question 6

What is autoimmunity?

Accepted Answer

When the immune system attacks the body's own tissues

Answer

When the immune system is too strong

Answer

When immunity is passed from mother to child

Answer

When antibiotics cause immune reactions