Chapter 21 quiz on pearson Flashcards
A nonself substance that can provoke an immune response is called a(n) __________.
a. antibody
b. immunoglobulin
c. colony-stimulating factor
d. antigen
e. interferon
d. antigen
Active artificially acquired immunity is a result of __________.
a. antibodies passed on from mother to baby through breast milk
b. contact with a pathogen
c. antibodies passed on from mother to fetus through the placenta
d. vaccination
e. contact with toxins secreted by pathogens
d. vaccination
Complement proteins work by __________.
a. neutralization of antigens
b. forming pores in the membranes of target cells
c. phagocytosis of target cells
d. producing antibodies
e. creating an impermeable barrier
b. forming pores in the membranes of target cells
Cytotoxic T cells kill target cells __________.
a. through insertion of perforins into the target’s membrane
b. by secreting antibodies
c. through injection of tumor necrosis factor
d. by phagocytosis
e. by releasing oxidizing agents
a. through insertion of perforins into the targets membrane
Lymphocytes that develop immunocompetence in the thymus are __________.
a. NK cells
b. T lymphocytes
c. B lymphocytes
d. macrophages
b. T lymphocytes
Saliva and lacrimal fluids contain which enzyme that destroys bacteria?
a. trypsin
b. amylase
c. reverse transcriptase
d. pepsin
e. lysozyme
e. lysozyme
Which immune cell is able to respond quickly after any subsequent encounter with the same antigen?
a. basophil
b. helper T cell
c. plasma cell
d. memory cell
e. antigen-presenting cell
d. memory cell
Which of the following is/are secreted by leukocytes and macrophages and result(s) in a fever?
a. antibodies
b. pyrogens
c. keratin
d. histamine
e. heparin
b. pyrogens
Which type of disease results from the inability of the immune system to distinguish self- from nonself-antigens?
a. anaphylaxis
b. allergy
c. autoimmune disease
d. SCID
e. immunodeficiency
c. autoimmune disease
