1. Q : Which statement is true about fungal infections?
Student Answer:
They occur only on skin, hair, & nails.
They are controlled by phagocytes & T lymphocytes.
They result in release of endotoxins.
They are prevented by vaccines.
Instructor The host defense against fungal infection includes the fungistatic properties
Explanation: of neutrophils & macrophages. T lymphocytes are crucial in limiting the
extent of infection & producing cytokines to further activate macrophages.
Points Received: 2 of 2
Comments:
-631930341 MultipleChoice 3 True
0 -631930341 MultipleChoice 3
Q 2. Q : Once they have penetrated the first line of defense, which
microorganisms do neutrophils actively attack, engulf, & destroy by
phagocytosis?
, Student
Bacteria
Answer:
Fungi
Viruses
Mycoplasma
Instructor Invasion results in direct confrontation with an individual’s primary defense
Explanation: mechanisms against bacteria, which include the complement system,
antibodies, & phagocytes, such as neutrophils & macrophages. (See Chapters
6, 7, & 8).
Points Received: 2 of 2
Comments:
-631930342 MultipleChoice 2 True
0 -631930342 MultipleChoice 2
Q 3. Q : After sexual transmission of HIV, a person can be infected yet
seronegative for _____ months.
Student
1 to 2
Answer:
6 to 14
18 to 20
24 to 36
Instructor Antibody appears rather rapidly after infection through blood products, usually
Explanation: within 4 to 7 weeks. After sexual transmission, however, the individual can be
, infected yet seronegative for 6 to 14 months or, in at least one case, for years.
Points Received: 2 of 2
Comments:
-631930343 MultipleChoice 7 True
0 -631930343 MultipleChoice 7
Q 4. Q : What of the following remains a significant cause of morbidity &
mortality worldwide?
Student
Starvation
Answer:
Traumatic injury
Cardiovascular disease
Infectious disease
Instructor Despite the wide scale implementation of progressive public health &
Explanation: immunization policies, infectious disease remains a significant cause of
morbidity & mortality.
Points Received: 2 of 2
Comments:
-631930344 MultipleChoice 1 True
0 -631930344 MultipleChoice 1
Q 5. Q : Cells in _____ may act as a reservoir in which HIV can be relatively
protected from antiviral drugs.