BIOL 204 LECTURE EXAM 2 2026 CELL
BIOLOGY AND GENETICS TEST PAPER
QUESTIONS AND SOLUTIONS GRADED A+
◉ Antibody functions include all of the following except:
A. targeting foreign cells so that complement proteins can cause
cellular lysis
B. linking soluble antigens together so that they fall out of solution
C. binding and inactivating chemical toxins released by bacteria or
other microorganisms
D. cross-linking cell-bound antigens on red blood cells when blood
types are properly matched Answer: D. cross-linking cell-bound
antigens on red blood cells when blood types are properly matched
◉ Viral-infected human cells often send out special proteins that
serve as an early warning system to uninfected cells. In response, the
uninfected cells develop antiviral proteins that protect them. The
early warning proteins sent out by viral-infected cells are:
A. complement
B. antigens
C. interferon
D. antibodies Answer: C. interferon
,◉ Cytotoxic T cells:
A. self destruct once the antigen has been neutralized
B. function mainly to stimulate the proliferation of other T cell
populations
C. are the only T cells that can directly attack and kill other cells
D. require the double recognition signal of MHC I plus MHC II on the
target cell in order to function Answer: C. are the only T cells that
can directly attack and kill other cells
◉ Passive immunity differs from active immunity in that passive
immunity:
A. results in the production of memory cells
B. causes long-term immunity
C. results in the production of antibodies
D. involves the administration of preformed antibodies Answer: D.
involves the administration of preformed antibodies
◉ Innate immune system defenses include:
A. plasma cells
B. T cells
C. phagocytosis
D. B cells Answer: C. phagocytosis
,◉ Which of the following is characteristic of T lymphocytes but not
B lymphocytes?
A. cell-mediated immunity
B. production of antibodies
C. production of plasma cells
D. maturation in the red bone marrow Answer: A. cell-mediated
immunity
◉ Select the correct statement about complement:
A. complement can be activated through three pathways: classical,
secondary, and alternate
B. complement proteins C1 through C9 act exclusively in the classical
pathway
C. the membrane attack complex consists of complement proteins
C3a through C5
D. a specific immune mechanism is often involved in directing
complement to its target Answer: D. a specific immune mechanism is
often involved in directing complement to its target
◉ Which of the following is associated with the specific defenses of
the body?
A. phagocytosis
B. interferons
C. cell-mediated immunity
, D. the complement system Answer: C. cell-mediated immunity
◉ Select the correct statement about T cells:
A. B cell function is much more complex than T cell function
B. T suppressor cells have the CD8 antigen
C. There are four major populations of T cells based on function
D. CD4 cells are cytotoxic in function Answer: B. T suppressor cells
have the CD8 antigen
◉ The process whereby neutrophils and other white blood are
attracted to an inflammatory site is called:
A. margination
B. chemotaxis
C. diapedesis
D. phagocytosis Answer: B. chemotaxis
◉ The primary immune response:
A. is another name for immunological memory
B. occurs more rapidly and is stronger than the secondary response
C. occurs when memory cells are stimulated
D. has a lag period while B cells proliferate and differentiate into
plasma cells Answer: D. has a lag period while B cells proliferate and
differentiate into plasma cells
BIOLOGY AND GENETICS TEST PAPER
QUESTIONS AND SOLUTIONS GRADED A+
◉ Antibody functions include all of the following except:
A. targeting foreign cells so that complement proteins can cause
cellular lysis
B. linking soluble antigens together so that they fall out of solution
C. binding and inactivating chemical toxins released by bacteria or
other microorganisms
D. cross-linking cell-bound antigens on red blood cells when blood
types are properly matched Answer: D. cross-linking cell-bound
antigens on red blood cells when blood types are properly matched
◉ Viral-infected human cells often send out special proteins that
serve as an early warning system to uninfected cells. In response, the
uninfected cells develop antiviral proteins that protect them. The
early warning proteins sent out by viral-infected cells are:
A. complement
B. antigens
C. interferon
D. antibodies Answer: C. interferon
,◉ Cytotoxic T cells:
A. self destruct once the antigen has been neutralized
B. function mainly to stimulate the proliferation of other T cell
populations
C. are the only T cells that can directly attack and kill other cells
D. require the double recognition signal of MHC I plus MHC II on the
target cell in order to function Answer: C. are the only T cells that
can directly attack and kill other cells
◉ Passive immunity differs from active immunity in that passive
immunity:
A. results in the production of memory cells
B. causes long-term immunity
C. results in the production of antibodies
D. involves the administration of preformed antibodies Answer: D.
involves the administration of preformed antibodies
◉ Innate immune system defenses include:
A. plasma cells
B. T cells
C. phagocytosis
D. B cells Answer: C. phagocytosis
,◉ Which of the following is characteristic of T lymphocytes but not
B lymphocytes?
A. cell-mediated immunity
B. production of antibodies
C. production of plasma cells
D. maturation in the red bone marrow Answer: A. cell-mediated
immunity
◉ Select the correct statement about complement:
A. complement can be activated through three pathways: classical,
secondary, and alternate
B. complement proteins C1 through C9 act exclusively in the classical
pathway
C. the membrane attack complex consists of complement proteins
C3a through C5
D. a specific immune mechanism is often involved in directing
complement to its target Answer: D. a specific immune mechanism is
often involved in directing complement to its target
◉ Which of the following is associated with the specific defenses of
the body?
A. phagocytosis
B. interferons
C. cell-mediated immunity
, D. the complement system Answer: C. cell-mediated immunity
◉ Select the correct statement about T cells:
A. B cell function is much more complex than T cell function
B. T suppressor cells have the CD8 antigen
C. There are four major populations of T cells based on function
D. CD4 cells are cytotoxic in function Answer: B. T suppressor cells
have the CD8 antigen
◉ The process whereby neutrophils and other white blood are
attracted to an inflammatory site is called:
A. margination
B. chemotaxis
C. diapedesis
D. phagocytosis Answer: B. chemotaxis
◉ The primary immune response:
A. is another name for immunological memory
B. occurs more rapidly and is stronger than the secondary response
C. occurs when memory cells are stimulated
D. has a lag period while B cells proliferate and differentiate into
plasma cells Answer: D. has a lag period while B cells proliferate and
differentiate into plasma cells
