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The complete lining of a person's digestive tract is renewed approximately every

3-5 days.

Overcooking a food is least likely to affect which of the following groups of nutrients?

Minerals

Recommended Dietary Allowances may be used to

assess dietary nutrient adequacy for individuals.

Which of the following statements defines the association between a risk factor and the development of a disease?

The more risk factors for a disease, the greater the chance of developing that disease

Legumes are used as meat alternatives for all of the following reasons except

they can be graded as prime, choice, and select.

Which of the following is a feature of the exchange list system?

All foods are grouped according to their content of carbohydrate, protein, and fats

Which of the following is a feature of people regularly eating meals based on tofu?

They have lower blood cholesterol and triglyceride levels than those eating meat

For the most part, all of the following are advantages of vegetarian diets except

vitamin B12 intake is higher.

What is the function of mucus in the stomach?

Protects stomach cells from gastric juices.

After swallowing, in what order does food pass through the regions of the GI tract?

Stomach, duodenum, jejunum, ileum, colon

What is one function of the gallbladder?

Stores bile

When alcohol and barbiturates are ingested, they are absorbed from the gastrointestinal tract and transported first to the

liver.

Therapy for constipation would include all of the following except

decreasing fiber intake.

All of the following are major causes of ulcer formation except

excessive use of antacids.

ou have just finished a light breakfast of toast and jelly. Which of the following series of events proceeds upon digestion/absorption of the meal until it is near time for lunch?

Blood glucose rises, the pancreas releases insulin, glucose is taken up by the cells through the action of insulin, blood glucose levels decline, the pancreas releases glucagon, glucagon stimulates liver cells to break down glycogen and release glucose into the blood, blood glucose rises

What is the composition of sucrose?

One glucose and one fructose unit

17. Where is most of the body's glycogen found?

Muscles

Allen is 20 years old and asks for help in selecting a fiber-rich diet. After he ranks the kinds of foods he likes to eat, you provide him with a list of food items consisting of

1 cup baked beans, 1 medium apple, 1 banana, 1½ cups oatmeal, 1 ounce 100% bran cereal, and ½ cup chopped raw carrots.

What type of fatty acid is found in high amounts in olive oil?

Monounsaturated

Which of the following cannot be found in plants?

Cholesterol

Your aunt Gladys has a family history of heart disease. She decides to begin eating a bowl of oatmeal every morning to help lower her blood cholesterol. After about a month of following this routine, her cholesterol declined about 5 points. Which of the following is the most likely explanation f

Oatmeal is high in soluble fibers that trap bile, causing the body to use more cholesterol for bile replacement

A high risk of heart attack correlates with high blood levels of

low-density lipoproteins.

Which of the following is a feature of fat metabolism?

Triglycerides in the blood must first be broken down to monoglycerides, fatty acids, and glycerol prior to uptake by the adipose cells

You and your friend John are planning a college graduation party and you want to include healthy snack alternatives. You select fruit, veggies, low-fat dips, low-fat cheeses, whole-wheat crackers, and low- fat potato chips. John says he has heard about the fat replacer olestra in the potato chips

contains a fat-like substance that the body's enzymes can't break down and therefore cannot be absorbed.

A characteristic of farm-raised fish is they are

lower in omega-3 fats.

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