After learning that sweat evaporation results in loss of calories, an anatomy and physiology student enters a sauna to try to lose weight. He reasons that a liter (about a quart) of water weighs 1000 grams, which is equivalent to 580,000 calories, or 580 kilocalories, of heat when lost as sweat. Therefore, instead of reducing his diet by 580 kilocalories per day, he believes that losing a liter of sweat every day in the sauna will cause him to lose about a pound of fat a week. Will this approach work? Explain.

Glycolysis

a. is the breakdown of glucose to two pyruvate molecules.

b. requires the input of two Adenosine triphosphate molecules.

c. produces two Nicotinamide adenine dinucleotide molecules.

d. does not require oxygen.

e. All of these are correct.

What are the most common monosaccharides in the diet? What are the sources of the three common disaccharides: sucrose, maltose, and lactose?

Why can some people lose weight on a 1200 kilocalorie per day diet, whereas others cannot?

Minerals

a. are inorganic nutrients.

b. compose about 4–5 percent of total body weight.

c. act as buffers and osmotic regulators.

d. are components of enzymes.

e. All of these are correct.

How does the hypothalamus regulate body temperature?

How is body temperature maintained behaviorally in a cold environment? How is body temperature maintained physiologically in a hot environment?

What are four ways that heat is exchanged between the body and the environment?

What is free energy? How much free energy is lost as heat from the body?

How are kilocalorie input and output adjusted to maintain body weight?

Basal Metabolic Rate, the thermic effect of food, and muscular activity each account for what percentage of total energy expenditure?

Concerning vitamins,

a. most can be synthesized by the body.

b. they are normally broken down before they can be used by the body.

c. A, D, E, and K are water-soluble vitamins.

d. many function as coenzymes.

Explain why a person suffering from copper deficiency feels tired all the time.

List the five food groups shown in MyPlate. How is the importance of eating fruits and vegetables indicated in MyPlate?