Immune Response

What is directly responsible for allergic symptoms, including a runny nose or itchy eyes?

• pathogens

• antigens

• histamine

• T-lymphocytes

What is clonal selection?

• Production of memory B cells

• Production of a group of identical organisms

• Passive immunity as a result of inoculation with antibodies

• Mitotic division of B cells activated in response to an infection

What occurs in the body after the injection of a vaccine containing antigens?

• Activated B-cells divide to form memory cells.

• The receiver of the vaccine develops passive immunity.

• Helper T-cells produce specific antibodies.

• Macrophages are cloned and destroy the antigen.

How can active immunity be acquired?

• by having the disease

• injection of antibiodies

• through colostrum (breastmilk)

• via plancenta

Which cells activate helper T-cells by antigen presentation?

• B-cells

• Bacteria

• Macrophages

• Plasma cells

When a pathogen is ingested by a phagocyte, which event occurs first?

• T-cell antivation

• memory cell proliferation

• antigen presentation by the phagocyte

• B-cell activation

What are antibodies?

• Organisms or viruses that cause disease

• Drugs used to treat bacterial diseases

• Substances the body recognizes as foreign

• Proteins that bind to foreign substances

Cells that ingest pathogens are

• plasma cells
• phagocytic cells
• helper T cells
• antibodies

Tags

NGSS.MS-LS1-3

T cells are made in the___________

• bone marrow
• spleen
• thymus
• tonsiles

B cells mature in the

• thymus
• intestine
• bone marrow
• heart