Immune system

To be "immune" means what?

• that you are infected

• that you are bald

• that you are protected

• that you are more likely to get sick

Your body cannot make antibodies for pathogens that you have never been in contact with.

• True

• False

A protein that attacks antigens is called:

• Antibody

• Antibiotic

• Vector

• Enzyme

The skin, mucous membranes, and cilia are examples of physical barriers that form the body's first line of defense.

• True

• False

Which of the following is a way to spread infectious diseases?

• Touching contaminated objects

• Being near infected people

• Not washing hands regularly

• All of these are ways

Inflammation is a protective response that decreases blood flow to the affected area.

• True

• False

Phagocytes engulf and destroy pathogens as part of the body's second line of defense.

• True

• False

Which is NOT considered FIRST line of defense?

• Helper T-Cells

• Skin

• Sweat

• Mucous membrane

Antibody creation is ​ (a) ......................  to the antigen.

Phagocytes attacking foreign invaders are a​ (b) .................  ​response.

• (a) Very specific

• (b) Non-specific

• (a) Related

• (b) Not related

What do B cells produce?

• Antigens

• T-cells

• Antibodies

• Macrophages