A person who is B positive will have
Question 1A person who is B positive will have
B antigens, anti-A antibody, no Rh antigen.
B antibodies, anti-A antibody, Rh antigen.
B antigens, anti-B antibody, Rh antigen.
A antigens, anti-B antibody, Rh antigen.
B antigens, anti-A antibody, Rh antigen.
Question 2Anaphylactic shock may occur due to
a bee sting.
exposure to the AIDS virus.
use of interferon.
antihistamines.
organ donation.
Question 3During surgery for breast cancer, surgeons will often remove lymph nodes in the armpit. What is the most likely reason for this?
Lymph nodes do not help a person and are better removed before they become infected.
Lymph nodes in the armpit become useless because of the surgery and can be removed without problem.
Lymph nodes that are close to the surgical incision would prevent healing following the surgery.
If any cancer cells have entered the lymph, they will travel to the closest lymph nodes, which are in the armpit.
Lymph nodes in the armpit are responsible for breast cancer.
Question 4How is a lymph capillary like a blood capillary?
Both are connected to the vena cava.
Both contain valves.
Both systems run parallel through all body tissues.
Both contain blood.
Both have thin walls.
Question 5In the later 1800s, the brilliant French chemist Louis Pasteur worked with chicken cholera, passing the disease agent from sick to healthy chickens. He suspended his research and went on vacation for several weeks. When he returned, the old cholera culture he gave to healthy chickens failed to kill them. He assumed his culture was bad and injected these same chickens with a fresh culture of chicken cholera. These chickens remained healthy while new chickens injected with the fresh culture of chicken cholera rapidly became sick and died. From our current knowledge of immunity, how would these observations be explained?
Pasteur had accidentally discovered a strain of chickens that had natural immunity.
His first disease culture had weakened over time and the chickens developed a form of passive immunity.
His first disease culture had weakened over time and stimulated the development of active immunity.
The chickens apparently had better B cells for development of more effective antibodies.
The first set of chickens served as a control group to the second set that showed the development of antibodies.
Question 6Lymph is
excreted as sweat.
returned to the circulatory system via arteries.
excreted by the kidneys.
returned to the circulatory system at the subclavian vein.
absorbed by tissues.
Question 7The AIDS virus attacks
helper T cells.
cytotoxic T cells.
suppressor T cells.
memory T cells.
B cells.
Question 8The clonal selection theory states that
all B cells are exact clones of one another.
T cells are stimulated by B cells to divide and form plasma cells, which secrete antibodies.
when a B or T cell is activated by binding to/recognizing an antigen, then that cell will be cloned into cells that recognize the same antigen.
all T cells are exact clones of one another.
when a B or T cell is stimulated by encountering the antibody, it divides to form a clone of cells that will respond to the same antibody.
Question 9Which of the following health problems are likely to occur if a person is unable to form the IgE antibodies?
Pathogens would be able to attach to their epithelial cells much easier.
They would be unable to have their cells clump.
Their B cells would be unable to respond to antigens.
The person would have problems defending themselves against parasitic worm infections as well as lacking an immediate allergic response.
The person would be unable to activate the complement.
Question 10Which statement is NOT true of the B cells?
B cells require presentation of antigens by macrophages before they are able to recognize the antigen.
B cells, when stimulated and changed into plasma cells, produce antibodies.
B cells, when stimulated, divide into memory cells.
B cells develop and mature in the bone marrow.
B cells carry receptor molecules on their cell surfaces.
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