Question 1 The AIDS virus infects which of the following cell types? macrophages
ID: 259322 • Letter: Q
Question
Question 1 The AIDS virus infects which of the following cell types?
macrophages
helper T cells
killer T cells
platelets
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Question 2 (1 point)
Which one of the following sentences are true?
Prions are viruses that are the cause of some brain disorders.
Prions are bacterial infection particles that are the cause of several plant diseases.
Prions are RNA viruses that are the cause of certain brain disorders.
Prions are protein infection particles that are believed to be the cause of certain brain disorders.
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Question 3 (1 point)
Which of these symptoms is not a manifestation of the inflammatory response?
release of histamines
increased blood flow at location of skin cut
production of specific antibodies
phagocytosis by white blood cells
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Question 4 (1 point)
What are the granulocytes?
antibodies in body secretions
circulating white blood cells that take in foreign bacteria
particles released by mast cells in response to pathogens
blood proteins that attach to a cell membrane and puncture it, causing it to burst
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Question 5 (1 point)
Sex: Male
Age: 34
Blood Type: O
WBC count: 25 000/mm3 (Normal = 7000/mm3)
RBC count: 2.5 million/mm3 (Normal = 5 million/mm3)
Body Temperature: 38.4°C
Pulse Rate: 72 beats/min
Knowing the information above about a patient, a doctor might suspect a pathogenic bacterial infection because of which of the following?
pulse rate
blood pressure
red blood cell count
white blood cell count
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Question 6 (1 point)
Sex: Male
Age: 34
Blood Type: O
WBC count: 25 000/mm3 (Normal = 7000/mm3)
RBC count: 2.5 million/mm3 (Normal = 5 million/mm3)
Body Temperature: 38.4°C
Pulse Rate: 72 beats/min
Knowing the information above about a patient, a doctor might suspect that the excess white blood cell count could possibly be an indication of which of the following?
edema
anemia
leukemia
granulocytes
macrophages
helper T cells
killer T cells
platelets
Explanation / Answer
1. helper T cells
HIV specifically infects and destroys white blood cells.
2. Prions are protein infection particles that are believed to be the cause of certain brain disorders.
Prions are neither bacteria or virus, but they are self-replicating protein particles.
3. production of specific antibodies
The inflammatory response includes - histamine release by mast cells, dilation of blood vessels and phagocytosis of antigens.
4. circulating white blood cells that take in foreign bacteria
Granulocytes are WBC like eosinophils that take in foreign bacteria.
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