BIOL 2320: MICROBIOLOGY REVIEW 4
QUESTIONS AND ALL CORRECT
ANSWERS 2026-2027 UPDATED.
The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell
walls is
A) hydrochloric acid.
B) bile.
C) lactic acid.
D) lysozyme.
E) histamine. - Answer lysozyme.
The body region where a ciliary escalator helps to sweep microbes trapped in mucus away from
that body site is the
A) eyes.
B) urinary tract.
C) respiratory tract.
D) digestive tract.
E) skin. - Answer respiratory tract.
Which of the following is an example of GALT?
A) thymus gland
B) lymph nodes
C) tonsils
D) appendix
E) spleen - Answer appendix
The blood cells that particularly target parasitic worms and fungi are
A) basophils.
B) monocytes.
C) lymphocytes.
,D) neutrophils.
E) eosinophils. - Answer eosinophils.
The most numerous WBCs, that have multilobed nuclei and are very phagocytic are
A) neutrophils.
B) monocytes.
C) basophils.
D) lymphocytes.
E) eosinophils. - Answer neutrophils.
Which cell type is phagocytic and can migrate out into body tissues to differentiate into
macrophages?
A) neutrophils
B) eosinophils
C) lymphocytes
D) monocytes
E) basophils - Answer monocytes
Diapedesis is the
A) migration of white blood cells from the blood out to the tissues.
B) plugging of broken vessels to stop bleeding.
C) production of only red blood cells.
D) production of white blood cells, red blood cells, and platelets.
E) loss of blood due to hemorrhaging. - Answer migration of white blood cells from the blood
out to the tissues.
Plasma cells
A) produce and secrete antibodies.
B) function in cell-mediated immunity.
C) are derived from T-lymphocytes.
D) function in blood clotting.
, E) All of these choices are correct. - Answer produce and secrete antibodies.
The lymphoid tissues of the intestinal tract are collectively referred to as
A) spleen.
B) GALT.
C) tonsils.
D) thymus.
E) lymph nodes. - Answer GALT.
The four classic signs and symptoms of inflammation include all the following, except
A) pain.
B) chills.
C) redness.
D) swelling.
E) warmth. - Answer chills.
All the following are events of early inflammation, except
A) macrophages appear first and begin phagocytosis.
B) capillaries become more permeable resulting in edema.
C) brief vasoconstriction is followed by vasodilation.
D) exudate and pus can accumulate.
E) chemical mediators and cytokines are released. - Answer macrophages appear first and
begin phagocytosis.
Elimination and destruction systems present in the phagolysosome include all the following,
except
A) nitric oxide.
B) bromine.
C) lactic acid.
D) hydroxyl free radical.
E) lysozyme. - Answer bromine.
QUESTIONS AND ALL CORRECT
ANSWERS 2026-2027 UPDATED.
The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell
walls is
A) hydrochloric acid.
B) bile.
C) lactic acid.
D) lysozyme.
E) histamine. - Answer lysozyme.
The body region where a ciliary escalator helps to sweep microbes trapped in mucus away from
that body site is the
A) eyes.
B) urinary tract.
C) respiratory tract.
D) digestive tract.
E) skin. - Answer respiratory tract.
Which of the following is an example of GALT?
A) thymus gland
B) lymph nodes
C) tonsils
D) appendix
E) spleen - Answer appendix
The blood cells that particularly target parasitic worms and fungi are
A) basophils.
B) monocytes.
C) lymphocytes.
,D) neutrophils.
E) eosinophils. - Answer eosinophils.
The most numerous WBCs, that have multilobed nuclei and are very phagocytic are
A) neutrophils.
B) monocytes.
C) basophils.
D) lymphocytes.
E) eosinophils. - Answer neutrophils.
Which cell type is phagocytic and can migrate out into body tissues to differentiate into
macrophages?
A) neutrophils
B) eosinophils
C) lymphocytes
D) monocytes
E) basophils - Answer monocytes
Diapedesis is the
A) migration of white blood cells from the blood out to the tissues.
B) plugging of broken vessels to stop bleeding.
C) production of only red blood cells.
D) production of white blood cells, red blood cells, and platelets.
E) loss of blood due to hemorrhaging. - Answer migration of white blood cells from the blood
out to the tissues.
Plasma cells
A) produce and secrete antibodies.
B) function in cell-mediated immunity.
C) are derived from T-lymphocytes.
D) function in blood clotting.
, E) All of these choices are correct. - Answer produce and secrete antibodies.
The lymphoid tissues of the intestinal tract are collectively referred to as
A) spleen.
B) GALT.
C) tonsils.
D) thymus.
E) lymph nodes. - Answer GALT.
The four classic signs and symptoms of inflammation include all the following, except
A) pain.
B) chills.
C) redness.
D) swelling.
E) warmth. - Answer chills.
All the following are events of early inflammation, except
A) macrophages appear first and begin phagocytosis.
B) capillaries become more permeable resulting in edema.
C) brief vasoconstriction is followed by vasodilation.
D) exudate and pus can accumulate.
E) chemical mediators and cytokines are released. - Answer macrophages appear first and
begin phagocytosis.
Elimination and destruction systems present in the phagolysosome include all the following,
except
A) nitric oxide.
B) bromine.
C) lactic acid.
D) hydroxyl free radical.
E) lysozyme. - Answer bromine.
