B ROADLY S PECIFIC H OST D EFENSES
Test Bank for Brock Biology of Microorganism 16th Edition by Michael T.
Madigan
26.1 Multiple Choice Questions
1. The abilit y of humans to resist a disease is called
A) dormancy.
B) immunit y.
C) resistance.
D) susceptibilit y.
2. Cells that can engulf foreign particles, and can ingest, kill, and digest
most bacterial pathogens are called
A) red blood cells.
B) phagocytes.
C) reticulocytes.
D) resistant cells.
3. Adaptive immunit y occurs when
A) death results from pathogen infection.
B) the innate immune response is overl y effective.
C) a broad, rapid response is needed to a wide range of pathogens from
the body regardless of the specific t ype of pathogen.
D) the innate immune response fails to eliminate pathogens in the body
and virulent infections pe rsist after the initial innate defense
response.
,4. Blood and l ymph have the following in common EXCEPT
A) nucleated cells.
B) proteins.
C) red blood cells.
D) none of these.
5. An example of pathogen -associated molecular patterns (PAMP) is
A) cell-surface proteins.
B) flagellin proteins.
C) lipopol ysaccharide (LPS).
D) pilus.
6. Adaptive immune responses are directed at pathogen molecules called
A) antigens.
B) antibodies.
C) T-cell receptors.
D) PAMP.
7. The cells active in both innate and adaptive immunit y develop from
common pluripotent precursors in the bone marrow called
A) B cells.
B) killer cells.
C) stem cells.
D) leukocytes.
8. Which of the following are NOT phagocytes?
A) dendritic cells
B) monocytes
C) neutrophils
D) erythrocytes
, 9. The process by which antibodies block interactions between pathogens or
their products and host cells is termed
A) attenuation.
B) complement.
C) interference.
D) neutralization.
10.MHC I proteins are found
A) on B cells onl y.
B) on macrophages onl y.
C) on dendritic cells only.
D) on all nucleated cells.
11.Stem cells are produced and developed in the
A) bone marrow.
B) brain.
C) liver.
D) stems of plants.
12.Which of the following is TRUE about cytokines?
A) They are carbohydrates.
B) They play an important role in immunit y, but do not affect stem cell
growth.
C) They play a role in the growth of stem cells, but are not important in
immunit y.
D) They are proteins that play an important role in immunit y and the
growth of stem cells.
13.Which of the following cell t ypes has NO nucleus?
A) erythrocytes
B) lymphocytes
C) phagocyte