Question 1

The primary site of nutrient absorption is the:

Accepted Answer

A) liver. 
B) large intestine. 
C) stomach. 
D) small intestine. 
A) liver. 
B) large intestine. 
C) stomach. 
D) small intestine. D

Question 2

Which of the following is most likely to inhibit gastric secretion and motility?

Accepted Answer

A) The sight and smell of food 
B) The release of gastrin from the stomach 
C) The passage of chyme into the small intestine 
D) The release of bile from the gallbladder 
A) The sight and smell of food 
B) The release of gastrin from the stomach 
C) The passage of chyme into the small intestine 
D) The release of bile from the gallbladder C

Question 3

________ are protein molecules that accelerate the rate of chemical reactions.

Accepted Answer

A) Hormones 
B) Chylomicrons 
C) Enzymes 
D) Buffers 
A) Hormones 
B) Chylomicrons 
C) Enzymes 
D) Buffers C

Question 4

The internal lining of the gastrointestinal tract is the:

Accepted Answer

A) submucosa. 
B) serosa. 
C) muscularis. 
D) mucosa. 
A) submucosa. 
B) serosa. 
C) muscularis. 
D) mucosa.

Question 5

The primary function of the large intestine is to:

Accepted Answer

A) prepare and store unabsorbed food residue for excretion. 
B) absorb digested nutrients. 
C) neutralize chyme. 
D) All of these choices are correct. 
A) prepare and store unabsorbed food residue for excretion. 
B) absorb digested nutrients. 
C) neutralize chyme. 
D) All of these choices are correct.

Question 6

The release of bile and pancreatic enzymes into the small intestine is controlled by:

Accepted Answer

A) secretin and CCK. 
B) stimulation of stretch receptors in the stomach. 
C) gastrin. 
D) salivary amylase. 
A) secretin and CCK. 
B) stimulation of stretch receptors in the stomach. 
C) gastrin. 
D) salivary amylase.

Question 7

The sum of the chemical reactions that occur inside body cells is collectively referred to as:

Accepted Answer

A) digestion. 
B) absorption. 
C) metabolism. 
D) hydrolysis. 
A) digestion. 
B) absorption. 
C) metabolism. 
D) hydrolysis.

Question 8

Pancreas secretions contain digestive enzymes and:

Accepted Answer

A) bicarbonate ions. 
B) bile. 
C) cholecystokinin (CCK). 
D) chyme. 
A) bicarbonate ions. 
B) bile. 
C) cholecystokinin (CCK). 
D) chyme.

Question 9

Stomach emptying is affected by all of the following EXCEPT:

Accepted Answer

A) the nutrient composition of a meal. 
B) the time of day the meal is consumed. 
C) the meal consistency (liquid versus solid). 
D) emotional states (sadness,anger,stress). 
A) the nutrient composition of a meal. 
B) the time of day the meal is consumed. 
C) the meal consistency (liquid versus solid). 
D) emotional states (sadness,anger,stress).

Question 10

Alternative feeding methods and/or special diets are necessary for individuals who are unable to consume food or properly digest and absorb nutrients.Explain how each of the following conditions might impact the process of digestion and nutrient availability.
a)Diseased gallbladder
b)Overuse/abuse of antacids
c)Unable to chew and swallow
d)Inflammation of the pancreas (pancreatitis)

Accepted Answer

a)Diseased gallbladder- interferes with

Question 11

Describe the organization of the human body beginning with atoms and ending with the major body systems.

Accepted Answer

Atoms are the smallest units of an eleme

Question 12

Which of the following is NOT true of the stomach?

Accepted Answer

A) It produces pepsinogen. 
B) Parietal cells in gastric pits produce hydrochloric acid. 
C) The main function is absorption. 
D) It has 3 layers of smooth muscle. 
A) It produces pepsinogen. 
B) Parietal cells in gastric pits produce hydrochloric acid. 
C) The main function is absorption. 
D) It has 3 layers of smooth muscle.

Question 13

The end-products of carbohydrate catabolism includes all of the following EXCEPT:

Accepted Answer

A) water. 
B) carbon dioxide. 
C) energy (ATP). 
D) urea. 
A) water. 
B) carbon dioxide. 
C) energy (ATP). 
D) urea.

Question 14

Chyme is neutralized in the small intestine by secretions from the:

Accepted Answer

A) gallbladder. 
B) kidneys. 
C) liver. 
D) pancreas. 
A) gallbladder. 
B) kidneys. 
C) liver. 
D) pancreas.

Question 15

The urinary and respiratory systems help the body to remove:

Accepted Answer

A) unabsorbed food residue. 
B) metabolic waste products. 
C) excess calories. 
D) All of these choices are correct. 
A) unabsorbed food residue. 
B) metabolic waste products. 
C) excess calories. 
D) All of these choices are correct.

Question 16

The hormone gastrin is released in response to:

Accepted Answer

A) the presence of food in the stomach. 
B) contraction of the gastroesophageal sphincter. 
C) relaxation of the anal sphincter. 
D) the presence of the bacteria Helicobacter pylori in the stomach. 
A) the presence of food in the stomach. 
B) contraction of the gastroesophageal sphincter. 
C) relaxation of the anal sphincter. 
D) the presence of the bacteria Helicobacter pylori in the stomach.

Question 17

The formation of chyme occurs in which part of the GI tract?

Accepted Answer

A) Small intestine 
B) Large intestine 
C) Gallbladder 
D) Stomach 
A) Small intestine 
B) Large intestine 
C) Gallbladder 
D) Stomach

Question 18

Which of the following is NOT a product released by the GI tract?

Accepted Answer

A) Mucus 
B) Enzymes 
C) Chyme 
D) Hormones 
A) Mucus 
B) Enzymes 
C) Chyme 
D) Hormones

Question 19

What factors impact the rate at which food leaves the stomach?

Accepted Answer

1)Meal com

Question 20

Describe the major digestive events taking place in each of the following organs:
a)mouth,
b)stomach,
c)small intestine,
d)large intestine.

Accepted Answer

a)Mouth-chewing breaks food down for bet

Exam 3: Digestion, absorption, and Metabolism

The primary site of nutrient absorption is the:

Which of the following is most likely to inhibit gastric secretion and motility?

________ are protein molecules that accelerate the rate of chemical reactions.

The internal lining of the gastrointestinal tract is the:

The primary function of the large intestine is to:

The release of bile and pancreatic enzymes into the small intestine is controlled by:

The sum of the chemical reactions that occur inside body cells is collectively referred to as:

Pancreas secretions contain digestive enzymes and:

Stomach emptying is affected by all of the following EXCEPT:

Describe the organization of the human body beginning with atoms and ending with the major body systems.

Which of the following is NOT true of the stomach?

The end-products of carbohydrate catabolism includes all of the following EXCEPT:

Chyme is neutralized in the small intestine by secretions from the:

The urinary and respiratory systems help the body to remove:

The hormone gastrin is released in response to:

The formation of chyme occurs in which part of the GI tract?

Which of the following is NOT a product released by the GI tract?

What factors impact the rate at which food leaves the stomach?

Describe the major digestive events taking place in each of the following organs: a)mouth, b)stomach, c)small intestine, d)large intestine.

Nutrition: Food for Health

Nutrition Guidelines: Applying the Science of Nutrition

Carbohydrates: Sugars, starches, and Fiber

Lipids: Triglycerides, phospholipids, and Cholesterol

Proteins and Amino Acids

Energy Balance and Weight Management

The Water-Soluble Vitamins

The Fat-Soluble Vitamins

Water and the Electrolytes

Major Minerals and Bone Health

The Trace Minerals

Nutrition and Physical Activity

Nutrition During Pregnancy and Lactation

Nutrition From Infancy to Adolescence

Nutrition and Aging: the Adult Years

Food Safety

World Hunger and Malnutrition

Focus On Alcohol

Focus On Eating Disorders

Focus On Phytochemicals

Focus on Nonvitamin/Nonmineral Supplements

Focus on Biotechnology

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