1) Which of the following is a feature of water metabolism during exercise?
a. The maximum loss of fluid per hour of exercise is about 0.5 liters.
b. In cold weather, the need for water falls dramatically because the body does not
sweat.
c. Sweat losses can exceed the capacity of the GI tract to absorb water, resulting in
some degree of dehydration.
d. Heavy sweating leads to a marked rise in the thirst sensation to stimulate water
intake, which delays the onset of dehydration.
e. Water loss of greater than 1 percent can decrease capacity to do muscular work.
2) Chris has been competing all day in a track competition and is now ready for the
100-meter dash. Although he feels tired, which of the following high-energy muscle
compounds can he rely on for quick energy in this event?
a. Fat
b. Lactate
c. Creatine phosphate
d. Adenosine diphosphate
e. Adenosine triphosphate
3) A high risk of heart attack correlates with high blood levels of ____.
a. free fatty acids
b. high-density lipoproteins
c. low-density lipoproteins
d. very low-density lipoproteins
e. omega-3 fatty acids
4) What is the most realistic advice for reducing lead exposure from the tap water used
to prepare infant formula?
a. Because the lead in hot water pipes settles out overnight, draw the water from this