A) They are responsible for cell-mediated immunity.
B) They can stimulate B cells.
C) They produce antibodies.
D) Helper T cells can secrete cytokines.
E) They require an antigen-presenting cell.
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Multiple Choice
A) antibody.
B) vaccine.
C) thrombin.
D) allergen.
E) pathogen.
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Multiple Choice
A) passive immunity.
B) active immunity.
C) developing an inflammatory response to increase the IgG production.
D) high levels of complement.
E) high levels of interferon.
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Multiple Choice
A) AIDS
B) SCID
C) flu
D) None of the answer choices is an example of an acquired immunodeficiency.
E) All of the answer choices are examples of an acquired immunodeficiency.
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Multiple Choice
A) thymus
B) lymph nodes
C) spleen
D) bone marrow
E) kidneys
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Multiple Choice
A) developing passive immunity.
B) developing active immunity.
C) developing an inflammatory response that increased the IgG production.
D) developing high levels of complement.
E) developing high levels of interferon,although Jenner did not realize these diseases were viral.
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Multiple Choice
A) mucous membrane
B) oil gland secretions
C) pH of the stomach
D) bacteria that live in the intestine
E) inflammatory response
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Multiple Choice
A) They are both lymphocytes.
B) They both pass through the thymus.
C) They both function in immunity.
D) They both are specific.
E) They both originated in bone marrow.
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Multiple Choice
A) It takes up excess tissue fluid at the site of capillaries.
B) Lymph contains the same proteins as found in the blood.
C) It helps defend the body against disease.
D) It contains lymph that may have fat in it.
E) Lymph is tissue fluid that has entered a lymph vessel.
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Multiple Choice
A) This would also be a problem where the father is Rh- and the mother is Rh+.
B) This would be a problem any time the mother is Rh-,regardless of the father's blood type,since the mother has the immune problem.
C) This is only a problem in the given case because the Rh- mother lacks the Rh+ protein and only a Rh+ father could produce an Rh+ child.
D) This is simply a matter of a mother having a lower threshold for rejecting foreign tissues since all babies have half-foreign tissues.
E) The problem is substantially more complicated since the hemolytic disease is also dependent on ABO blood groups.
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Multiple Choice
A) accumulation of tissue fluid.
B) abnormally high amount of plasma proteins.
C) the kidney excreting too little protein.
D) too much tissue fluid drainage.
E) drinking more water than normal.
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Multiple Choice
A) only antigen A on the surface of RBCs.
B) only antigen B on the surface of RBCs.
C) antigens A and B on the surface of RBCs.
D) antibodies A and B on the surface of RBCs.
E) only antibody A on the surface of RBCs.
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Multiple Choice
A) memory B cell.
B) memory T cell.
C) cytotoxic T cell.
D) plasma cell.
E) antigen-presenting cell.
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Multiple Choice
A) phagocytes.
B) neutrophils.
C) mast cells.
D) macrophages.
E) B cells.
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Multiple Choice
A) The antibodies produced are all of the same type.
B) They are produced from plasma cells derived from different B cells.
C) They are formed when B lymphocytes are fused with malignant plasma cells.
D) They are used in the diagnosis of various diseases.
E) They are used to treat some cancers.
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Multiple Choice
A) IgA
B) IgD
C) IgE
D) IgG
E) IgM
Correct Answer
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Multiple Choice
A) The lymphatic system protects the body from disease.
B) The lymphatic system returns excess tissue fluid to the bloodstream.
C) The fluid inside lymphatic vessels is called lymph.
D) The lymphatic system absorbs fats at the villi and transports them to the bloodstream.
E) The lymphatic system consists of blood vessels and lymphoid organs.
Correct Answer
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True/False
Correct Answer
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True/False
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Multiple Choice
A) excreted by the kidneys.
B) returned to the circulatory system via arteries.
C) returned to the circulatory system at the subclavian vein.
D) absorbed by tissues.
E) excreted as sweat.
Correct Answer
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