When the concentration of sodium in the blood increases, what happens to aldosterone and renin secretion, and what then results?
a. Aldosterone and renin secretion increase, resulting in increased salt reabsorption by the kidneys
b. Aldosterone and renin secretion decrease, resulting in decreased salt reabsorption by the kidneys
c. Aldosterone and renin secretion increase, resulting in decreased salt reabsorption by the kidneys
d. Aldosterone and renin secretion decrease, resulting in increased salt reabsorption by the kidneys
b
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If a dancer and a typist are the same height and have the exact same body build, the dancer will be heavier because she has
a. more body fat. b. stronger bones. c. stronger muscles. d. more muscle mass.
Acidosis occurs when ____.?
A) ?the plasma concentration of H ions falls below the normal range B) ?the plasma concentration of H ions exceeds the normal range C) ?chloride ion concentration exceeds hydrogen ion concentration D) ?sodium ion concentration exceeds chloride ion concentration
Which of the following statements about nutrient needs of breastfeeding women is not true?
A) Breastfeeding women have a higher requirement for DHA than non-pregnant women. B) Breastfeeding women should supplement their diets with a multivitamin-mineral supplement. C) Breastfeeding women should avoid alcohol intake. D) Breastfeeding women should not lose more than a pound a week. E) Breastfeeding women need more calories than pregnant women.
Heat cramps (total body cramping when exercising in the heat) in athletes who are "salty sweaters" appear to be caused by ____
A) dehydration B) sodium depletion C) large losses of fluid and sodium D) non-nutritional factors