Which of the following minerals is a component of the body's oxygen-transporting system?

Which of the following minerals is a component of the body's oxygen-transporting system?
a. Zinc
b. Phosphorus
c. Iron
d. Magnesium

Q. 2

Joe is 20 years old and wants to calculate his target heart rate. What would be the lower and upper limits of Joe's target heart rate?
a. 110 to 180 beats per minute
b. 200 to 220 beats per minute
c. 85 to 95 beats per minute
d. Insufficient information to determine

Q. 3

The more fit a muscle is, the _____ it draws from the blood.
a. less oxygen
b. more oxygen
c. more carbon dioxide
d. less carbon dioxide

Q. 4

Which of the following is not a useful tip for sustaining an exercise program?
a. Set realistic goals.
b. Don't focus on weight lost.
c. If you don't experience any pain, it probably isn't intense enough.
d. Find an exercise buddy.

Q. 5

A _____ diet can increase an athlete's endurance.
a. fat and protein
b. high-carbohydrate
c. normal mixed
d. high-vitamin

Q. 6

Which of the following has been falsely claimed to increase the use of fatty acids and spare glycogen during exercise?
a. Carnitine
b. Caffeine
c. Sodium bicarbonate
d. Creatine

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Which of the following minerals is a component of the body's oxygen-transporting system?

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