Exam 22: Immunity

What is the correct order in bacterial antigen processing and presentation? 1)lysosomal enzymes digest the bacterium into molecular bits 2)the antigen-MHC complex is displayed on the cell surface 3)the endocytic vesicle fuses with a lysosome 4)a bacterium is engulfed by a phagocytic cell

Mast cells

Innate immunity begins when

Acne results when

____ is a particularly dangerous strain of a residential bacteria because it doesn't respond to antibiotic treatment.

If a person is incapable of making effector helper T cells,what will be the result?

Small pox

In general,HPV causes

Which of the following is NOT a protection the body's inner surfaces use against penetration by harmful microorganisms?

All of the following are true of AIDS,EXCEPT which of the following statements?

In this type of immunity,the response is immediate,the antigen is detected by a fixed set of receptors,and does not persist.This type of immunity is

In an antibody- mediated immune response,what causes effector helper T cells to release cyokines?

Cells of multicelled eukaryotes have receptors that can recognize around ___ PAMPs.

Which of the following bacteria produce an acid that serves to prevent the colonization of the vagina by bacteria and fungi?

Sebum contains

A person in puberty is more likely to have acne because they

PAMPs include

Sensitivity to allergens

Four of the five choices below are characteristics of adaptive immunity.Select the EXCEPTION.

These white blood cells are especially effective at killing bacteria and will actually explode their contents creating a net that traps and kills pathogens.These white blood cells are