Question 1

Describe the role of the stomach in the process of digestion.

Accepted Answer

The answer of Describe the role of the stomach in...

Question 2

Which of the following nutrients takes longest to digest?

Accepted Answer

A) fat 
B) sugar 
C) vitamin C 
D) iron 
E) glucose 
A) fat 
B) sugar 
C) vitamin C 
D) iron 
E) glucose

Question 3

Which nutrients must be broken down in order to be absorbed?

Accepted Answer

A) vitamins, minerals, water 
B) carbohydrate, vitamins, minerals 
C) fat, protein, minerals 
D) carbohydrate, protein, fat 
A) vitamins, minerals, water 
B) carbohydrate, vitamins, minerals 
C) fat, protein, minerals 
D) carbohydrate, protein, fat

Question 4

Elevated LDL concentrations are associated with a high risk of heart disease because they:

Accepted Answer

A) transport cholesterol and triglycerides from the liver to the tissues. 
B) carry excessive amounts of fat that is deposited around the heart. 
C) encourage high levels of iron in the blood. 
D) take excess cholesterol back to the liver, which increases the production of cholesterol. 
A) transport cholesterol and triglycerides from the liver to the tissues. 
B) carry excessive amounts of fat that is deposited around the heart. 
C) encourage high levels of iron in the blood. 
D) take excess cholesterol back to the liver, which increases the production of cholesterol.

Question 5

When nutrients enter the blood vessels from the small intestine, they are first transported to the:

Accepted Answer

A) kidney. 
B) liver. 
C) cells throughout the body. 
D) thoracic duct. 
A) kidney. 
B) liver. 
C) cells throughout the body. 
D) thoracic duct.

Question 6

Should antacids be taken to decrease the strong acidity of the stomach? Explain your answer.

Accepted Answer

The answer of Should antacids be taken to decrease the...

Question 7

Explain the benefits of intestinal microflora to health.

Accepted Answer

The answer of Explain the benefits of intestinal microflora to...

Question 8

Peristalsis is a term that refers to the:

Accepted Answer

A) circulation of blood in the blood vessels. 
B) absorption of nutrients in the intestines. 
C) mixing and moving of food through the lymphatic system. 
D) last phase of digestion. 
E) action of the involuntary muscles of the digestive tract. 
A) circulation of blood in the blood vessels. 
B) absorption of nutrients in the intestines. 
C) mixing and moving of food through the lymphatic system. 
D) last phase of digestion. 
E) action of the involuntary muscles of the digestive tract.

Question 9

Elevated HDL concentrations are associated with a low risk of heart disease because they:

Accepted Answer

A) transport newly absorbed lipids from intestinal cells to the rest of the body. 
B) carry cholesterol and triglycerides from the liver to the rest of the body. 
C) carry lipids around in the blood more often than LDL. 
D) take excess cholesterol and phospholipids from the tissues and return them to the liver. 
A) transport newly absorbed lipids from intestinal cells to the rest of the body. 
B) carry cholesterol and triglycerides from the liver to the rest of the body. 
C) carry lipids around in the blood more often than LDL. 
D) take excess cholesterol and phospholipids from the tissues and return them to the liver.

Question 10

After digestion, lipids are packaged for transport as lipoproteins known as:

Accepted Answer

A) HDL. 
B) VLDL. 
C) LDL. 
D) chylomicrons. 
A) HDL. 
B) VLDL. 
C) LDL. 
D) chylomicrons.

Question 11

One of the functions of the colon is to absorb:

Accepted Answer

A) salts. 
B) vitamins. 
C) sugars. 
D) fiber. 
A) salts. 
B) vitamins. 
C) sugars. 
D) fiber.

Question 12

The major digestive work in the stomach is the initial breakdown of:

Accepted Answer

A) starch. 
B) proteins. 
C) fat. 
D) vitamins. 
A) starch. 
B) proteins. 
C) fat. 
D) vitamins.

Question 13

The normal pH of the stomach is:

Accepted Answer

A) very acidic. 
B) slightly acidic. 
C) neutral. 
D) slightly alkaline. 
E) strongly alkaline. 
A) very acidic. 
B) slightly acidic. 
C) neutral. 
D) slightly alkaline. 
E) strongly alkaline.

Question 14

Immediately before passing into the large intestine, the food mass must pass though the:

Accepted Answer

A) pyloric sphincter. 
B) lower esophageal sphincter. 
C) ileocecal valve. 
D) bolus. 
A) pyloric sphincter. 
B) lower esophageal sphincter. 
C) ileocecal valve. 
D) bolus.

Question 15

Which of the following contains no digestive enzymes?

Accepted Answer

A) saliva 
B) gastric juice 
C) intestinal juice 
D) bile 
A) saliva 
B) gastric juice 
C) intestinal juice 
D) bile

Question 16

Outline and trace the path food follows through the digestive tract from one end to the other.

Accepted Answer

The answer of Outline and trace the path food follows...

Question 17

Which of the following organs does not contribute juices during digestion?

Accepted Answer

A) salivary glands 
B) small intestine 
C) pancreas 
D) esophagus 
A) salivary glands 
B) small intestine 
C) pancreas 
D) esophagus

Question 18

A bolus is a(n):

Accepted Answer

A) sphincter muscle separating the stomach from the small intestine. 
B) portion of food swallowed at one time. 
C) enzyme that hydrolyzes starch. 
D) portion of partially digested food expelled by the stomach into the duodenum. 
A) sphincter muscle separating the stomach from the small intestine. 
B) portion of food swallowed at one time. 
C) enzyme that hydrolyzes starch. 
D) portion of partially digested food expelled by the stomach into the duodenum.

Question 19

Which of these foods would be digested most quickly?

Accepted Answer

A) sugar cookies 
B) peanut butter sandwich and milk 
C) stew and cornbread 
D) hamburger, french fries, and milkshake 
A) sugar cookies 
B) peanut butter sandwich and milk 
C) stew and cornbread 
D) hamburger, french fries, and milkshake

Question 20

Which of the following is the body's major metabolic organ?

Accepted Answer

A) pancreas 
B) small intestine 
C) gallbladder 
D) liver 
A) pancreas 
B) small intestine 
C) gallbladder 
D) liver

Exam 2: Digestion and Absorption

Describe the role of the stomach in the process of digestion.

Which of the following nutrients takes longest to digest?

Which nutrients must be broken down in order to be absorbed?

Elevated LDL concentrations are associated with a high risk of heart disease because they:

When nutrients enter the blood vessels from the small intestine, they are first transported to the:

Should antacids be taken to decrease the strong acidity of the stomach? Explain your answer.

Explain the benefits of intestinal microflora to health.

Peristalsis is a term that refers to the:

Elevated HDL concentrations are associated with a low risk of heart disease because they:

After digestion, lipids are packaged for transport as lipoproteins known as:

One of the functions of the colon is to absorb:

The major digestive work in the stomach is the initial breakdown of:

The normal pH of the stomach is:

Immediately before passing into the large intestine, the food mass must pass though the:

Which of the following contains no digestive enzymes?

Outline and trace the path food follows through the digestive tract from one end to the other.

Which of the following organs does not contribute juices during digestion?

A bolus is a(n):

Which of these foods would be digested most quickly?

Which of the following is the body's major metabolic organ?

Overview of Nutrition and Health

Carbohydrates

Lipids

Protein

Energy Balance and Body Composition

Weight Management

The Vitamins

Water and the Minerals

Nutrition Through the Life Span: Pregnancy and Infancy

Nutrition Through the Life Span: Childhood and Adolescence

Nutrition Through the Life Span: Later Adulthood

Nutrition Care and Assessment

Nutrition Intervention and Diet-Drug Interactions

Enteral and Parenteral Nutrition Support

Nutrition in Metabolic and Respiratory Stress

Nutrition and Upper Gastrointestinal Disorders

Nutrition and Lower Gastrointestinal Disorders

Nutrition and Liver Diseases

Nutrition and Diabetes Mellitus

Nutrition and Disorders of the Heart and Blood Vessels

Nutrition and Renal Diseases

Nutrition, Cancer, and Hiv Infection

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