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What percentage of the human body is water A) About 10% B)

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What percentage of the human body is water?
A) About 10%
B) About 25%
C) About 50%
D) About 75%
A smoker's breathing is less effective because of _________ in the smoke.
A) NaCl
B) Fe
C) CO2
High fructose corn syrup is produced
A) from genetically engineered corn that produces more fructose than glucose upon hydrolysis.
B) by processing normal glucose rich corn syrup with an enzyme that converts glucose to fructose.
C) by adding synthetic fructose to normal corn syrup.
D) by a combination of all of the above processes.
A down-side of a high protein diet is that
A) more toxic wastes are produced during digestion.
B) it produces more calories than a high carbohydrate diet.
C) it produces more calories than a high fat diet.
D) it is digested faster than other food groups.
Biological magnification of DDT is a result of its
A) fat solubility.
B) water solubility.
C) chemical reactivity.
D) widespread use.
Which of the following has the highest protein conversion efficiency?
A) beef
B) cereal grains
C) chicken
D) milk and eggs
The body mass index is used to measure one's level of
A) fatness.
B) hydration.
C) stamina.
D) hunger.
Respiratory capacity of muscle is increased by
A) light exercise.
B) endurance exercise.
C) weight lifting.
D) eating more protein.
Processing of foods generally decreases
A) vitamins.
B) minerals.
C) fiber.
D) all of the above
A good source of complex carbohydrates is
A) sucrose.
B) lactose.
C) cereal grains.
D) beef steak.
High-density lipoprotein is often called "good cholesterol" because it
A) breaks down cholesterol in the bloodstream.
B) delivers cholesterol to the cells for use.
C) carries cholesterol to the lungs where it is oxidized.
D) transports cholesterol to the liver where it is processed and excreted.
Heat strokes resulting from physical exertion occur when the body's heat regulatory system fails. This condition is likely to occur when
A) there is a vitamin deficiency.
B) the body is dehydrated.
C) the sodium ion level in body fluids is low.
D) one has overeaten.
On any diet that restricts carbohydrate intake,
A) only fat is lost.
B) fat and protein are lost.
C) only protein is lost.
D) only glycogen is lost.
Complete (adequate) protein contains
A) all the known amino acids.
B) all the amino acids found in human protein.
C) all the essential amino acids.
D) all the amino acids for which U.S. RDAs have been established.
The immediate source of energy for muscle action is
A) glucose.
B) glycogen.
D) fatty acids.
A high fiber diet has been linked with prevention of
A) diarrhea.
B) colon cancer.
C) aging.
D) the common cold.
An athlete's pre-game meal should consist mainly of
A) carbohydrates.
B) fat.
C) protein.
D) vitamins.
Some of the fat-laden foods are cream, butter, margarine, and
A) fish.
B) celery.
C) fruit.
D) salad oils.
People who do not eat meat or other animal products can obtain all the essential amino acids most effectively by
A) taking commercial amino acid supplements.
B) obtaining injections at a hospital or clinic.
C) eating lima beans each day.
D) eating combinations of foods that supply complementary proteins.
Fiber in the diet
A) provides quick energy.
B) is readily converted to fat.
C) lowers retention time in the colon.
D) is rich in vitamins.
From your body's perspective, glucose is
A) a fuel.
B) an oxidizing agent.
C) a source of structural material.
D) all of the above.
Hydrolysis means
A) broken down by water.
B) broken down by hydrogen.
C) broken down by pressure.
D) broken down by heat.
If insufficient oxygen is available to muscles during energy conversion, the by-products of energy production are water and
A) pyruvic acid.
B) lactic acid.
C) carbon dioxide.
The amount of phosphorus on the earth today is ________ 200 years ago when phosphates were first recognized as an essential plant nutrient.
A) less than
B) more than
C) about the same as
D) none of the above
If you ordinarily expend 1700 kcal/day and you diet at 1500 kcal/day, how long will it take to lose 1.0 pound of fat? Note: 1.0 lb of adipose fat is 3500 kcal.)
A) 35 days
B) 15 days
C) 17.5 days
D) 2.33 days
In the body, fat serves as a
A) thermal insulator.
B) protective covering of organs.
C) reserve energy supply.
D) all of the above.
Iron plays a central role in
A) protein synthesis.
B) nucleic acid replication.
C) hemoglobin structure and oxygen transport.
D) bones.
Low calorie sweeteners have
A) low calorie structures.
B) fewer atoms than natural sweeteners.
C) greater sweet taste per molecule.
D) all of the above.
Potassium iodide is added to table salt to prevent
A) goiter.
B) caking.
C) oxidation.
D) spoiling.
Muscles are built through
A) eating a protein rich diet.
B) taking an amino acid supplement.
C) megavitamin and mineral supplements.
D) exercise.
Saturated fats have
A) primarily C-C (single) bonds.
B) a large proportion of C=C (double) bonds.
C) one or more C=C (triple)bonds.
D) an odd number of carbon atoms.
The base of the new food guide pyramid contains items like
A) meat.
B) whole grain foods and plant oils.
C) fruit.
D) vegetables.
The best thing to drink to replenish lost body fluids after exercise is
A) salt water.
B) water.
C) beer.
D) Gatorade.
The body stores a relatively small amount of excess glucose as
A) cellulose.
B) glycogen.
C) protein.
D) fat.
The body stores most excess glucose as
A) cellulose.
B) glycogen.
C) protein.
D) fat.
The drug most commonly used by athletes and others to relieve pain is
A) aspirin.
B) cocaine.
C) codeine.
D) methyl salicylate.
The general recommendation for vitamin consumption by most members of the scientific community is
A) to take high doses of vitamin supplements daily.
B) to eat a well balanced diet.
C) to take high doses of water soluble vitamins.
D) make sure your vitamin supplements are enriched with iron and zinc.
The largest consumer of petroleum among all industries is
A) agriculture.
B) steel production.
C) automobile manufacturing.
D) food processing.
The major component of body sweat is
A) sodium chloride.
B) potassium chloride.
C) calcium chloride.
D) water.
The number of dieters who lose weight and then gain it back is approximately
A) 1%.
B) 10%.
C) 50%.
D) 90%.
The protein directly responsible for muscle contraction is
A) collagen.
B) actomyosin.
C) keratin.
D) hemoglobin.
The symptoms of dehydration include
A) cloudy urine.
B) dizziness or fainting.
C) tired or cramped muscles.
D) all of the above.
The top section of the new food guide pyramid contains items like
A) refined carbohydrates and red meat and butter.
B) vegetables.
C) fruit.
D) bread.
Vitamins can be grouped into two broad categories:
A) the B complex and the rest.
B) fat soluble and water soluble.
C) acids and esters.
D) esters and amines.
When starch is digested, it is hydrolyzed to
A) fructose.
B) glucose.
C) lactose.
D) sucrose.
Which of the following promote water loss from the body?
A) alcohol
B) caffeine
C) Both alcohol and caffeine promote water loss.
D) Neither alcohol nor caffeine promotes water loss.
Which of the following would not be considered a restorative drug?
A) anabolic steroids
B) analgesics
C) anti-inflammatories
D) All are restorative drugs.
Which of the following does not contribute to improving a person's health?
A) a balanced diet
B) an optimistic and positive attitude
C) exercising regularly
D) All of the above contribute to improving health.
Which substance serves as stored energy in muscle?
A) glycogen
B) glucose
D) protein
You bike 50 km. Though tired, you feel great because your brain has synthesized some
A) amphetamine.
B) endorphins.
C) glucose.
D) morphine.
Submitted: 7 years ago.
Category: Homework
Expert:  Chris M. replied 7 years ago.

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Expert:  Chris M. replied 7 years ago.



There were some errors in this answer set. Here are corrections:

4. A

5. A

14. C

17. A

18. D

22. A

25. C

30. D

31. A



Edited by Chris M. on 2/25/2010 at 2:25 PM EST
Customer: replied 7 years ago.
Thank You!

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