Which of the following statements is FALSE?
A) The pH of blood is slightly basic.
B) The more hydrogen ions in a solution, the more acidic the solution.
C) When acids and bases are mixed, they react with each other to form water and a salt.
D) When the hydrogen ion concentration decreases, the hydroxyl ion concentration also decreases.
D
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Art, 75 years old, has advanced arteriosclerosis and is suffering from a number of manifestations associated with arteriosclerosis. Over the past several years he has developed hypertension and he is beginning to show signs of renal failure. Which of the following are consistent with his condition?
A. Increased renin secretion from the kidneys B. Increased angiotensinogen formation C. Increased aldosterone secretion from the adrenal cortex D. Increased resistance to blood flow E. All of the choices are correct.
An example of a genotype would be ________, and an example of a phenotype would be ________.
A. genes; alleles B. Ff; ff C. having freckles; Ff D. Ff; having freckles
At ovulation, a ________ is released from an ovary and carried by a uterine tube towards the uterus.
A. secondary follicle B. mature egg cell C. primary oocyte D. secondary oocyte
Tolerance to antigens is induced by ________.
A. stimulating helper T cell division B. preventing suppressor T cell proliferation C. stimulating interleukin 2 production D. blocking costimulation E. promoting the release of cytokines