Question 1

Polysaccharides are hydrolyzed into disaccharides by enzymes known as:

Accepted Answer

A) lipase. 
B) proteases. 
C) maltase. 
D) amylase. 
A) lipase. 
B) proteases. 
C) maltase. 
D) amylase.

Question 2

Respiration is inhibited for the 1 to 3 seconds required for food to clear the pharynx during each swallowing.

Accepted Answer

A) True 
 B)False

Question 3

Drinking large amounts of water works best as a means of replacing fluids quickly during exercise.

Accepted Answer

A) True 
 B)False

Question 4

Explain the physiological basis for diarrhea and constipation.

Accepted Answer

Diarrhea and constipation are both condi

Question 5

Match each of the digestive juices and enzymes with its corresponding description.
-Enzyme that works on cane sugars

Accepted Answer

A) Amylase 
B) Bile 
C) Lactase 
D) Maltase 
E) Pepsin
F)Peptidase
G)Sucrase
H)Trypsin
I)Lipase 
A) Amylase 
B) Bile 
C) Lactase 
D) Maltase 
E) Pepsin
F)Peptidase
G)Sucrase
H)Trypsin
I)Lipase

Question 6

Lecithin is secreted by the liver.

Accepted Answer

A) True 
 B)False

Question 7

A small amount of ingested alcohol is absorbed by the stomach.

Accepted Answer

A) True 
 B)False

Question 8

One important role of the salivary glands is the production of mucus, because they are the only glands that produce it.

Accepted Answer

A) True 
 B)False

Question 9

Which statement best explains the process of absorption?

Accepted Answer

A) Absorption is the process of taking food into the mouth and starting it on its journey through the digestive tract. 
B) Absorption releases digestive juices (containing enzymes, acids, bases, mucus, bile, or other products that facilitate digestion). 
C) Absorption is the movement by the muscular components of the digestive tube, including processes of mechanical digestion; examples include peristalsis and segmentation. 
D) Absorption is the passage of substances (notably digested foods, water, salts, and vitamins) through the intestinal mucosa into the blood or lymph. 
A) Absorption is the process of taking food into the mouth and starting it on its journey through the digestive tract. 
B) Absorption releases digestive juices (containing enzymes, acids, bases, mucus, bile, or other products that facilitate digestion). 
C) Absorption is the movement by the muscular components of the digestive tube, including processes of mechanical digestion; examples include peristalsis and segmentation. 
D) Absorption is the passage of substances (notably digested foods, water, salts, and vitamins) through the intestinal mucosa into the blood or lymph.

Question 10

The end product of fat digestion is:

Accepted Answer

A) fatty acids. 
B) monoglycerides. 
C) glycerol. 
D) all of the above. 
A) fatty acids. 
B) monoglycerides. 
C) glycerol. 
D) all of the above.

Question 11

Match each primary mechanism of the digestive system with its corresponding definition.
-Process of taking food into the mouth, starting it on its journey through the digestive tract

Accepted Answer

A) Motility 
B) Ingestion 
C) Elimination 
D) Secretion 
E) Digestion
F)Absorption 
A) Motility 
B) Ingestion 
C) Elimination 
D) Secretion 
E) Digestion
F)Absorption

Question 12

An end product of fat digestion is:

Accepted Answer

A) glycerol. 
B) glucose. 
C) glycogen. 
D) galactose. 
A) glycerol. 
B) glucose. 
C) glycogen. 
D) galactose.

Question 13

Match each digestive hormone with its action.
-Inhibits gastric secretion and motility

Accepted Answer

A) Secretin 
B) Cholecystokinin (CCK) 
C) Gastrin 
D) Gastric inhibitory peptide (GIP) 
A) Secretin 
B) Cholecystokinin (CCK) 
C) Gastrin 
D) Gastric inhibitory peptide (GIP)

Question 14

Micelles are formed in the GI lumen.

Accepted Answer

A) True 
 B)False

Question 15

Mastication is another word for chewing.

Accepted Answer

A) True 
 B)False

Question 16

Segmentation is different from peristalsis because:

Accepted Answer

A) segmentation only occurs in the stomach. 
B) it is a type of mechanical digestion. 
C) it does not move food through the digestive tract. 
D) there is no difference between segmentation and peristalsis. 
A) segmentation only occurs in the stomach. 
B) it is a type of mechanical digestion. 
C) it does not move food through the digestive tract. 
D) there is no difference between segmentation and peristalsis.

Question 17

The hormone thought to be a messenger causing release of digestive enzymes from the intestinal mucosa is:

Accepted Answer

A) vasoactive intestinal peptide. 
B) enterogastrone. 
C) secretin. 
D) cholecystokinin-pancreozymin. 
A) vasoactive intestinal peptide. 
B) enterogastrone. 
C) secretin. 
D) cholecystokinin-pancreozymin.

Question 18

Which of the following is not one of the openings that must be blocked when food moves from the pharynx into the esophagus?

Accepted Answer

A) Oropharynx 
B) Nasopharynx 
C) Larynx 
D) Mouth 
A) Oropharynx 
B) Nasopharynx 
C) Larynx 
D) Mouth

Question 19

Chief cells and zymogenic cells are the same structures. They function to produce digestive enzymes in the stomach.

Accepted Answer

A) True 
 B)False

Question 20

Cellulose is a residue of digestion that comes from:

Accepted Answer

A) carbohydrates. 
B) meat proteins. 
C) undigested fats. 
D) undigested connective tissue. 
A) carbohydrates. 
B) meat proteins. 
C) undigested fats. 
D) undigested connective tissue.

Exam 40: Digestion and Absorption

Polysaccharides are hydrolyzed into disaccharides by enzymes known as:

Respiration is inhibited for the 1 to 3 seconds required for food to clear the pharynx during each swallowing.

Drinking large amounts of water works best as a means of replacing fluids quickly during exercise.

Explain the physiological basis for diarrhea and constipation.

Match each of the digestive juices and enzymes with its corresponding description. -Enzyme that works on cane sugars

Lecithin is secreted by the liver.

A small amount of ingested alcohol is absorbed by the stomach.

One important role of the salivary glands is the production of mucus, because they are the only glands that produce it.

Which statement best explains the process of absorption?

The end product of fat digestion is:

Match each primary mechanism of the digestive system with its corresponding definition. -Process of taking food into the mouth, starting it on its journey through the digestive tract

An end product of fat digestion is:

Match each digestive hormone with its action. -Inhibits gastric secretion and motility

Micelles are formed in the GI lumen.

Mastication is another word for chewing.

Segmentation is different from peristalsis because:

The hormone thought to be a messenger causing release of digestive enzymes from the intestinal mucosa is:

Which of the following is not one of the openings that must be blocked when food moves from the pharynx into the esophagus?

Chief cells and zymogenic cells are the same structures. They function to produce digestive enzymes in the stomach.

Cellulose is a residue of digestion that comes from:

Organization of the Body

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