BIOD 101 Module 6 Exam | Essential Biology
I with Lab | Portage Learning | Complete
Exam Review & Questions with Answers |
2026-2027
, During the Gram-stain procedure, Gram-positive bacteria purple; pink/red
retain a dye that is _______ in color, while Gram-negative
bacteria retain a dye that is _________ in color.
Neutrophils 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.
Lymphocytes play roles in both innate and adaptive immune defenses and include natural killer
cells (NK cells), B cells, and T cells.
Monocytes Naive, undifferentiated cells that will become Macrophages and dendritic cells,
these are the differentiated versions of this immune cell.
Macrophages phagocytic cells that may travel through the bloodstream patrolling or may
permanently be located in tissues throughout the body.
Dendritic Cells 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.
Eosinophils Are found in low concentration within the blood and in high concentration in
epithelial tissue. Fight parasitic infections by releasing damaging enzymes onto the
parasite. They also play a role in allergic and inflammatory responses.
Barrier defenses fall under the adaptive arm of the immune False: Barrier defenses fall under the innate arm of the immune system.
system
Which of the following statements is/are true of Eukaryotic A
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
List the THREE common bacterial shapes Cocci, Bacilli, and Spiral
Explain how pathogens use capsules to evade host cell Pathogens can sometimes form protective capsules that are thick enough to mask
detection 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.
Where is lysozyme found? Describe how lysozyme Lysozyme is a secreted enzyme found in mucus, tears and saliva that interferes
destroys pathogens that have entered the body. with the peptidoglycan walls of some bacteria and can thus destroy potential
invaders.
Each of the following statements is true about GAS except D) The mode of transmission is only through peson-to-person contact via saliva
A) It is the causative pathogen of strep throat
B) It is a Gram-positive cocci arranged in chain
C) It is very treatable in developed nations.
D) The mode of transmission is only through person-to-
person contact via saliva
E) All of the above are true
I with Lab | Portage Learning | Complete
Exam Review & Questions with Answers |
2026-2027
, During the Gram-stain procedure, Gram-positive bacteria purple; pink/red
retain a dye that is _______ in color, while Gram-negative
bacteria retain a dye that is _________ in color.
Neutrophils 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.
Lymphocytes play roles in both innate and adaptive immune defenses and include natural killer
cells (NK cells), B cells, and T cells.
Monocytes Naive, undifferentiated cells that will become Macrophages and dendritic cells,
these are the differentiated versions of this immune cell.
Macrophages phagocytic cells that may travel through the bloodstream patrolling or may
permanently be located in tissues throughout the body.
Dendritic Cells 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.
Eosinophils Are found in low concentration within the blood and in high concentration in
epithelial tissue. Fight parasitic infections by releasing damaging enzymes onto the
parasite. They also play a role in allergic and inflammatory responses.
Barrier defenses fall under the adaptive arm of the immune False: Barrier defenses fall under the innate arm of the immune system.
system
Which of the following statements is/are true of Eukaryotic A
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
List the THREE common bacterial shapes Cocci, Bacilli, and Spiral
Explain how pathogens use capsules to evade host cell Pathogens can sometimes form protective capsules that are thick enough to mask
detection 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.
Where is lysozyme found? Describe how lysozyme Lysozyme is a secreted enzyme found in mucus, tears and saliva that interferes
destroys pathogens that have entered the body. with the peptidoglycan walls of some bacteria and can thus destroy potential
invaders.
Each of the following statements is true about GAS except D) The mode of transmission is only through peson-to-person contact via saliva
A) It is the causative pathogen of strep throat
B) It is a Gram-positive cocci arranged in chain
C) It is very treatable in developed nations.
D) The mode of transmission is only through person-to-
person contact via saliva
E) All of the above are true
