All of the following are accurate about H+ concentration and pH except:
a. acids contain more H+ than water.
b. H+ concentration and pH are inversely related.
c. neutralizing an acidic solution requires that base is added.
d. a pH of 6 is basic or alkaline.
d. a pH of 6 is basic or alkaline.
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Which structure is especially responsible for thermoregulation?
A. Amygdala B. Primary somatosensory cortex C. Hypothalamus D. Thalamus E. Cerebellum
What chemical is necessary for the transformation of angiotensin-I (A-I) into active angiotensin-II (A-II)?
A) angiotensinogen B) atrial natriuretic peptide (ANP) C) angiotensin-converting enzyme (ACE) D) renin
A cross-match test is performed between donor blood and recipient blood, even though the ABO and Rh blood types match between the two because
A) there are many more surface antigens on red blood cells other than A, B and Rh. B) all antibodies of the donor blood and the recipient blood must be identified. C) coagulation can occur even in a small percentage of cases. D) one has to make sure that the same agglutinogens have to be on both donor and recipients red blood cells. E) errors are commonly made by the clinical staff regarding donor-recipient matches.
Fred's blood was determined to be AB positive. What does this mean?
A) There are no antibodies to A, to B, or to Rh antigens in the plasma. B) Antibodies to A and B are present in the red cells. C) His blood lacks Rh factor. D) He can only receive blood from a donor who is AB positive.