In the bicarbonate-carbonic acid system, carbonic acid in the bloodstream dissociates into hydrogen ions and
A) ketones. B) bicarbonate ions. C) carbon monoxide. D) carbon dioxide.
Q. 2A prescription medication derived from vitamin C is often used to treat acne.
Indicate whether the statement is true or false
Q. 3Before talking with a friend you suspect may have an eating disorder,
A) arrange to meet your friend at a restaurant so that you can comment on his or her eating behaviors.
B) keep a log of your friend's behaviors for at least six months.
C) locate a specialist to whom you can refer your friend.
D) go through your friend's kitchen to gather evidence to confirm your suspicions.
Q. 4Collagen fibers are stronger than steel fibers of the same size.
Indicate whether the statement is true or false
Q. 5Because 13-year-old Mikkel had been vomiting repeatedly, his pediatrician admitted him to the hospital. Which of the following is the MOST significant concern in a person with uncontrolled vomiting?
A) Loss of gastric bicarbonate could cause acidosis.
B) Loss of gastric acid could cause alkalosis.
C) Loss of body fluids could cause hyponatremia.
D) Increased renal excretion of ammonia could denature body proteins.
Q. 6Research suggesting a link between diet and adolescent acne is inconclusive.
Indicate whether the statement is true or false
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