Edition By Eberhard Voit 9780815345688 ALL Chapters .
A bone marrow transplant may not be appropriate from a given donor (Jane) to a given recipient
(Jane's cousin Bob), even though Jane has previously given blood for one of Bob's needed
transfusions, because - ANSWER: even though Jane's blood type is a match to Bob's, her MHC
proteins may not be a match
Organisms with a circulating body fluid that is distinct from the fluid that directly surrounds the body's
cells are likely to have - ANSWER: a closed circulatory system
Which of the following is the correct sequence of blood flow in reptiles and mammals? - ANSWER:
vena cava, right atrium, right ventricle, pulmonary circuit
Dialysis patients, who will have blood withdrawn, dialyzed, then replaced, are always weighed when
they enter the facility and then weighed carefully again before they leave, because - ANSWER: even
small changes in body weight may signify changes in blood volume and therefore blood pressure `
Vasoconstriction in the gut is a likely response when an individual is - ANSWER: stressed and secreting
stress hormones
Heart rate will increase in the presence of increased - ANSWER: epinephrine
The meshwork that forms the fabric of a blood clot is - ANSWER: fibrin
Innate immunity is - ANSWER: activated immediately upon infection
Adaptive immunity depends on - ANSWER: pathogen- specific recognition
A key part of the humoral immune response is - ANSWER: the production of antibodies by plasma
cells
The receptors on T cells and B cells bind to - ANSWER: antigens
Antigens are - ANSWER: foreign molecules that trigger the generation of antibodies
Secondary immune responses upon a second exposure to a pathogen are due to the activation of -
ANSWER: memory cells
The MHC is important in a T cell's ability to - ANSWER: distinguish self from non-self
The function of antibodies is to - ANSWER: mark pathogenic cells for destruction
Yearly vaccination of humans for influenza viruses is necessary because - ANSWER: rapid mutation in
flu viruses alters the surface proteins in infected host cells
Select the pathway that would lead to the activation of cytotoxic T cells - ANSWER: body cell becomes
infected with a virus → new viral proteins appear → class I MHC molecule-antigen complex displayed
on cell surface
T cells of the immune system include - ANSWER: cytotoxic and helper cells
In the human disease known as lupus, there is an immune reaction against a patient's own DNA from
broken or dying cells, which categorizes lupus as - ANSWER: an autoimmune disease