©THEBRIGHT EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
Chapter 21 Immune System Exam Questions
With Verified Answers
A nonself substance that can provoke an immune response is called a(n) __________.
immunoglobulin
interferon
colony-stimulating factor
antibody
antigen - Answers✔antigen
Active artificially acquired immunity is a result of __________.
contact with toxins secreted by pathogens
antibodies passed on from mother to baby through breast milk
vaccination
contact with a pathogen
antibodies passed on from mother to fetus through the placenta - Answers✔vaccination
Complement proteins work by __________.
phagocytosis of target cells
creating an impermeable barrier
forming pores in the membranes of target cells
neutralization of antigens
1
, ©THEBRIGHT EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
producing antibodies - Answers✔forming pores in the membranes of target cells
Complement usually works with antibodies in the classical pathway to open pores in the target
cell membrane.
Cytotoxic T cells kill target cells __________.
by releasing oxidizing agents
by phagocytosis
by secreting antibodies
through injection of tumor necrosis factor
through insertion of perforins into the target's membrane - Answers✔through insertion of
perforins into the target's membrane
Perforins create large pores in the target cell's membrane where apoptosis-inducing granzymes
enter the cell.
Lymphocytes that develop immunocompetence in the thymus are __________.
B lymphocytes
NK cells
macrophages
T lymphocytes - Answers✔T lymphocytes
Saliva and lacrimal fluids contain which enzyme that destroys bacteria?
pepsin
reverse transcriptase
amylase
trypsin
lysozyme - Answers✔Lysozyme
Lysozyme lyses the cell wall and membrane of bacteria.
Which immune cell is able to respond quickly after any subsequent encounter with the same
antigen?
2
ALL RIGHTS RESERVED.
Chapter 21 Immune System Exam Questions
With Verified Answers
A nonself substance that can provoke an immune response is called a(n) __________.
immunoglobulin
interferon
colony-stimulating factor
antibody
antigen - Answers✔antigen
Active artificially acquired immunity is a result of __________.
contact with toxins secreted by pathogens
antibodies passed on from mother to baby through breast milk
vaccination
contact with a pathogen
antibodies passed on from mother to fetus through the placenta - Answers✔vaccination
Complement proteins work by __________.
phagocytosis of target cells
creating an impermeable barrier
forming pores in the membranes of target cells
neutralization of antigens
1
, ©THEBRIGHT EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
producing antibodies - Answers✔forming pores in the membranes of target cells
Complement usually works with antibodies in the classical pathway to open pores in the target
cell membrane.
Cytotoxic T cells kill target cells __________.
by releasing oxidizing agents
by phagocytosis
by secreting antibodies
through injection of tumor necrosis factor
through insertion of perforins into the target's membrane - Answers✔through insertion of
perforins into the target's membrane
Perforins create large pores in the target cell's membrane where apoptosis-inducing granzymes
enter the cell.
Lymphocytes that develop immunocompetence in the thymus are __________.
B lymphocytes
NK cells
macrophages
T lymphocytes - Answers✔T lymphocytes
Saliva and lacrimal fluids contain which enzyme that destroys bacteria?
pepsin
reverse transcriptase
amylase
trypsin
lysozyme - Answers✔Lysozyme
Lysozyme lyses the cell wall and membrane of bacteria.
Which immune cell is able to respond quickly after any subsequent encounter with the same
antigen?
2
