Immune system (2)

Billy is experiencing a red bump and some swelling on his ankle as a result of a bee sting. This is an example of

• Antibody production

• A specific immune response

• The bees beginning their final master plan to take over the universe.

• Non-specific immune response

The immune system of humans may respond to chemicals on the surface of an invading organism by

• releasing hormones that break down these chemicals

• synthesizing antibodies that mark these organisms to be destroyed

• secreting antibiotics that attach to these organisms

• altering a DNA sequence in these organisms

In some individuals, the immune system attacks substances such as grass pollen that are usually harmless, resulting in

• an allergic reaction

• a form of cancer

• an insulin imbalance

• a mutation

Certain microbes, foreign tissues, and some cancerous cells can cause immune responses in the human body because all three contain

• antigens

• enzymes

• fats

• cytoplasm

Cells of the immune system are able to respond to the presence of invading organisms because your immune cells recognize the

• antigens present on the invaders

• antibodies present in invading pathogens

• DNA pattern in the nuclei of viruses

• antibiotics released from microbes

An infection in the body might result in a sudden

• decrease in the activity of antigens produced by the mitochondria

• decrease in the amount of DNA present in the nuclei of cells

• increase in the activity of white blood cells

• increase in the number of red blood cells

Antibiotics work against most

• Bacteria
• Bacteria & Viruses
• Vaccines
• Viruses

Which one is a way the body defends against a pathogen?

• Fever

• Inflammation

• White Blood Cells fighing

• All of these are correct

Cells that ingest (eat) pathogens are

• plasma cells

• phagocytic cells

• helper T cells

• antibodies

B cells are made in the

• thymus

• intestine

• bone marrow

• spleen