BIOD 101 Module 6 Exam Portage
learning
1. During the Gram-stain procedure, Gram-positive bacteria
retain a dye that is
in color, while Gram-negative bacteria retain a dye that is
in color.--- correct answer --- purple; pink/red
2. Neutrophils--- correct answer --- The most abundant type of
phagocytic cell. Play a major role in the process of inflammation.
Have a characteristic grainy, multi-lobes (2-5) nuceli under a
microscope.
3. Lymphocytes--- correct answer --- play roles in both innate
and adaptive immune defenses and include natural killer cells
(NK cells), B cells, and T cells.
,4. Monocytes--- correct answer --- Naive, undifferentiated cells
that will become Macrophages and dendritic cells, these are the
differentiated versions of this immune cell.
5. Macrophages--- correct answer --- phagocytic cells that may
travel through the bloodstream pa- trolling or may permanently
be located in tissues throughout the body.
6. Dendritic Cells--- correct answer --- Are similar to
macrophages but exhibit higher specificity for pathogens and are
classified as both innate and adaptive cells. Reside in tissues to
engulf pathogens.
7. Eosinophils--- correct answer --- Are found in low
concentration within the blood and in high concen- tration in
epithelial tissue. Fight parasitic infections by releasing damaging
enzymes onto the parasite. They also play a role in allergic and
inflammatory responses.
8. Barrier defenses fall under the adaptive arm of the immune
system--- correct answer --- False--- correct answer --- Barrier
defenses fall under the innate arm of the immune system.
, 9. Which of the following statements is/are true of Eukaryotic
cells? (select all that apply)
A) DNA is housed in a membrane-bound nucleus
B) They are always single celled
C) Bacteria are examples
D) All of the above statements are true--- correct answer --- A
10. List the THREE common bacterial shapes--- correct answer -
-- Cocci, Bacilli, and Spiral
11. Explain how pathogens use capsules to evade host cell
detection--- correct answer --- - Pathogens can sometimes form
protective capsules that are thick enough to mask surface
antigens. Not only are the pathogens difficult to recognize, but
the capsule provides the additional benefit of protecting the
microorganisms from degradation by host antimicrobial proteins.
12. Where is lysozyme found? Describe how lysozyme destroys
pathogens that have entered the body.--- correct answer ---
Lysozyme is a secreted enzyme found in mucus, tears and saliva
learning
1. During the Gram-stain procedure, Gram-positive bacteria
retain a dye that is
in color, while Gram-negative bacteria retain a dye that is
in color.--- correct answer --- purple; pink/red
2. Neutrophils--- correct answer --- The most abundant type of
phagocytic cell. Play a major role in the process of inflammation.
Have a characteristic grainy, multi-lobes (2-5) nuceli under a
microscope.
3. Lymphocytes--- correct answer --- play roles in both innate
and adaptive immune defenses and include natural killer cells
(NK cells), B cells, and T cells.
,4. Monocytes--- correct answer --- Naive, undifferentiated cells
that will become Macrophages and dendritic cells, these are the
differentiated versions of this immune cell.
5. Macrophages--- correct answer --- phagocytic cells that may
travel through the bloodstream pa- trolling or may permanently
be located in tissues throughout the body.
6. Dendritic Cells--- correct answer --- Are similar to
macrophages but exhibit higher specificity for pathogens and are
classified as both innate and adaptive cells. Reside in tissues to
engulf pathogens.
7. Eosinophils--- correct answer --- Are found in low
concentration within the blood and in high concen- tration in
epithelial tissue. Fight parasitic infections by releasing damaging
enzymes onto the parasite. They also play a role in allergic and
inflammatory responses.
8. Barrier defenses fall under the adaptive arm of the immune
system--- correct answer --- False--- correct answer --- Barrier
defenses fall under the innate arm of the immune system.
, 9. Which of the following statements is/are true of Eukaryotic
cells? (select all that apply)
A) DNA is housed in a membrane-bound nucleus
B) They are always single celled
C) Bacteria are examples
D) All of the above statements are true--- correct answer --- A
10. List the THREE common bacterial shapes--- correct answer -
-- Cocci, Bacilli, and Spiral
11. Explain how pathogens use capsules to evade host cell
detection--- correct answer --- - Pathogens can sometimes form
protective capsules that are thick enough to mask surface
antigens. Not only are the pathogens difficult to recognize, but
the capsule provides the additional benefit of protecting the
microorganisms from degradation by host antimicrobial proteins.
12. Where is lysozyme found? Describe how lysozyme destroys
pathogens that have entered the body.--- correct answer ---
Lysozyme is a secreted enzyme found in mucus, tears and saliva
