Bio 420 Exam Questions With Correct
Answers
Which statement about protection against smallpox by variolation is
| | | | | | | | |
true? - ANSWER✔✔✔-Variolation produced immune protection with a
| | | | | | | |
much lower mortality rate than smallpox infection in the general
| | | | | | | | | |
population
Which example demonstrates paracrine signaling? - ANSWER✔✔✔-An
| | | | | | |
APC produces IL-12 that binds to its receptor on a T cell that recognizes
| | | | | | | | | | | | | |
the antigen being presented
| | |
Lipopolysaccharide (LPS) is a pathogen-associated molecular ___| | | | | | |
(PAMP) of gram-negative bacteria that binds to the TLR-4 receptor on
| | | | | | | | | | |
immune cells. - ANSWER✔✔✔-pattern
| | |
Adaptive immunity has all the following advantages over innate
| | | | | | | | |
immunity except: - ANSWER✔✔✔-has a rapid primary response to
| | | | | | | | |
infection
Which microbe is classified as an obligate intracellular pathogen? -
| | | | | | | | | |
ANSWER✔✔✔-virus
,To be successful causing infection, a microbe must be able to evade host
| | | | | | | | | | | |
defenses. What mechanism helps a microbe evade adaptive immune
| | | | | | | | | |
responses, even in individuals who have been vaccinated against that
| | | | | | | | | |
microbe? - ANSWER✔✔✔-mutation | |
Which cell type is not visible in this microscopic image of a healthy
| | | | | | | | | | | | |
human blood smear? - ANSWER✔✔✔-macrophage
| | | |
What is the functional role of CD3 complex and Ig-alpha/beta, which are
| | | | | | | | | | |
membrane proteins associated with T-cell and B-cell receptors,
| | | | | | | | |
respectively. - ANSWER✔✔✔-signal transducer | | |
Match the cell with is functionally related counterpart. - ANSWER✔✔✔-
| | | | | | | | |
* basophil - mast cell
| | | |
*megakaryocyte - thrombocyte | |
*B cell - plasma cell
| | | |
*monocyte - macrophage | |
*cytotoxic T cell -natural killer cell | | | | |
PAMP-PRR interactions are used by the immune system to determine if
| | | | | | | | | | |
something is harmful to the host. What other key piece of information
| | | | | | | | | | | |
do these interactions provide to immune cells, so the appropriate
| | | | | | | | | |
, responses can be activated? - ANSWER✔✔✔-what type of microbe is
| | | | | | | | | |
present (e.g., virus, bacterium, parasite)
| | | |
What key observation made by Edward Jenner in the 1790s led to the
| | | | | | | | | | | | |
development of the first vaccine? - ANSWER✔✔✔-Milkmaids who got
| | | | | | | | |
cowpox infection from milking cows were protected against infection by
| | | | | | | | | |
smallpox.
Which example describes a defect in immune tolerance in the human
| | | | | | | | | | |
host? - ANSWER✔✔✔-A man develops an allergy to the Fel d 1 protein
| | | | | | | | | | | | |
expressed by cats | |
Of the following immune cells, which one's primary role is
| | | | | | | | | |
phagocytosis? (choose all correct answers) | | | |
All correct answers must be selected in order to be graded correct -
| | | | | | | | | | | | |
ANSWER✔✔✔--neutrophils
-dendritic cells |
-macrophages
Athenan general and historian Thucydides made observations of a
| | | | | | | | |
plague during the Peloponnesian Wars. Those who previously
| | | | | | | |
contracted the disease and recovered could care for the sick because
| | | | | | | | | | |
they would not contract the disease again. In this respect, the term
| | | | | | | | | | |
"immunity" is derived from the Latin "immunis", which means: -
| | | | | | | | | | |
ANSWER✔✔✔-exempt
Answers
Which statement about protection against smallpox by variolation is
| | | | | | | | |
true? - ANSWER✔✔✔-Variolation produced immune protection with a
| | | | | | | |
much lower mortality rate than smallpox infection in the general
| | | | | | | | | |
population
Which example demonstrates paracrine signaling? - ANSWER✔✔✔-An
| | | | | | |
APC produces IL-12 that binds to its receptor on a T cell that recognizes
| | | | | | | | | | | | | |
the antigen being presented
| | |
Lipopolysaccharide (LPS) is a pathogen-associated molecular ___| | | | | | |
(PAMP) of gram-negative bacteria that binds to the TLR-4 receptor on
| | | | | | | | | | |
immune cells. - ANSWER✔✔✔-pattern
| | |
Adaptive immunity has all the following advantages over innate
| | | | | | | | |
immunity except: - ANSWER✔✔✔-has a rapid primary response to
| | | | | | | | |
infection
Which microbe is classified as an obligate intracellular pathogen? -
| | | | | | | | | |
ANSWER✔✔✔-virus
,To be successful causing infection, a microbe must be able to evade host
| | | | | | | | | | | |
defenses. What mechanism helps a microbe evade adaptive immune
| | | | | | | | | |
responses, even in individuals who have been vaccinated against that
| | | | | | | | | |
microbe? - ANSWER✔✔✔-mutation | |
Which cell type is not visible in this microscopic image of a healthy
| | | | | | | | | | | | |
human blood smear? - ANSWER✔✔✔-macrophage
| | | |
What is the functional role of CD3 complex and Ig-alpha/beta, which are
| | | | | | | | | | |
membrane proteins associated with T-cell and B-cell receptors,
| | | | | | | | |
respectively. - ANSWER✔✔✔-signal transducer | | |
Match the cell with is functionally related counterpart. - ANSWER✔✔✔-
| | | | | | | | |
* basophil - mast cell
| | | |
*megakaryocyte - thrombocyte | |
*B cell - plasma cell
| | | |
*monocyte - macrophage | |
*cytotoxic T cell -natural killer cell | | | | |
PAMP-PRR interactions are used by the immune system to determine if
| | | | | | | | | | |
something is harmful to the host. What other key piece of information
| | | | | | | | | | | |
do these interactions provide to immune cells, so the appropriate
| | | | | | | | | |
, responses can be activated? - ANSWER✔✔✔-what type of microbe is
| | | | | | | | | |
present (e.g., virus, bacterium, parasite)
| | | |
What key observation made by Edward Jenner in the 1790s led to the
| | | | | | | | | | | | |
development of the first vaccine? - ANSWER✔✔✔-Milkmaids who got
| | | | | | | | |
cowpox infection from milking cows were protected against infection by
| | | | | | | | | |
smallpox.
Which example describes a defect in immune tolerance in the human
| | | | | | | | | | |
host? - ANSWER✔✔✔-A man develops an allergy to the Fel d 1 protein
| | | | | | | | | | | | |
expressed by cats | |
Of the following immune cells, which one's primary role is
| | | | | | | | | |
phagocytosis? (choose all correct answers) | | | |
All correct answers must be selected in order to be graded correct -
| | | | | | | | | | | | |
ANSWER✔✔✔--neutrophils
-dendritic cells |
-macrophages
Athenan general and historian Thucydides made observations of a
| | | | | | | | |
plague during the Peloponnesian Wars. Those who previously
| | | | | | | |
contracted the disease and recovered could care for the sick because
| | | | | | | | | | |
they would not contract the disease again. In this respect, the term
| | | | | | | | | | |
"immunity" is derived from the Latin "immunis", which means: -
| | | | | | | | | | |
ANSWER✔✔✔-exempt
