HH 3.5 - 3.8

Select the chemical responsible for vasodilation

• cytokine

• mast

• histamine

• lysosome

Select the chemical responsible attracting lymphocytes to an area

• cytokines

• mast

• histamine

• lysosome

A lymphocyte carries out a

• non-specific response

• specific response

Phagocytosis is only involved in non-specific responses

• True

• False

Select all of the responses to an increase in histamine concentration

• Vasoconstriction

• Vasodilation

• Accumulation of clotting agents

• Increased permeability of blood vessels

What activates a lymphocyte

• a pathogen

• adjuvant

• a specific antigen binding to its membrane receptor

• histamine

What statements are true about T lymphocytes

• produces antibodies

• is specific to certain antigens

• binds to infected cells

• uses proteins to cause the production of self destructive enzymes

• divides to form a clonal population

What statements are true about B lymphocytes

• produces antibodies

• is specific to certain antigens

• binds to infected cells

• uses proteins to cause the production of self destructive enzymes

• divides to form a clonal population

HIV can avoid the immune system by

• using antigenic variation

• destroying T lymphocytes

• destroying B lymphocytes

• blocking antibodies

Influenza can avoid the immune system by

• using antigenic variation

• destroying T lymphocytes

• destroying B lymphocytes

• blocking antibodies