Question 1

Which of these does not aid in digestion?

Accepted Answer

A)  accessory organs
B)  neural stimulation
C)  palpitations
D)  endocrine secretionsE) A) and B)
F) A) and C)

Question 2

Which digestive hormone stimulates the secretion of bicarbonate by the pancreas?

Accepted Answer

A)  gastrin
B)  cholycystokinin
C)  gastric inhibitory peptide
D)  secretinE) B) and C)
F) A) and D)

Question 3

Because of the hepatic portal vein,the _____ is the first organ to receive most of the products of digestion.

Accepted Answer

A)  liver
B)  kidney
C)  pancreas
D)  gall bladderE) A) and B)
F) A) and C)

Question 4

Which of the following is not true about the large intestine?

Accepted Answer

A)  only 4% of food absorption takes place in it
B)  secretes water to make the feces semi-solid
C)  contains three relatively straight segments with no villi
D)  sodium,vitamin K,and other bacterial metabolic products absorbed across the wall
E)  compacts and stores the undigested materials till excretion as fecesF) B) and E)
G) C) and E) B

Question 5

In the diagram,which of the following processes causes the greatest insulin release?

Accepted Answer

A)  II
B)  III
C)  I
D)  both I and II equally
E)  both II and III equallyF) A) and C)
G) A) and B) A

Question 6

The products of fat digestion in the small intestine are reassembled into triglycerides by the intestinal epithelium,before combining them with proteins to form ____________.

Accepted Answer

A)  chylomicrons
B)  chyme
C)  vesicles
D)  bileE) A) and D)
F) B) and D)

Question 7

Why doesn't the stomach acid just digest right through the wall of the stomach?

Accepted Answer

A)  It does,we just rebuild the layers faster than they can be digested.
B)  Neutralizers are imbedded in the stomach lining.
C)  The ph of the stomach acid is not low enough to be able to digest the lining.
D)  Food prevents the acid from digesting the wall of the stomach.
E)  The lining of the stomach is protected by mucus.F) A) and D)
G) C) and E)

Question 8

Why is the stomach acidic?

Accepted Answer

A)  to kill bacteria
B)  to digest proteins
C)  to hold water
D)  to breakdown starch
E)  to emulsify fatsF) A) and E)
G) C) and D) B

Question 9

Most digestion occurs in the first 25 centimeters of the 6-meter length of the small intestine called the

Accepted Answer

A)  duodenum.
B)  reticulum.
C)  cecum.
D)  omasum.
E)  abomasum.F) A) and E)
G) All of the above

Question 10

Since the hepatic portal vein empties into the liver,it is able to control the amounts of

Accepted Answer

A)  alcohol and drugs.
B)  toxins,pesticides,and carcinogens.
C)  glucose.
D)  glucose,alcohol,and drugs.
E)  glucose,alcohol,drugs,toxins,pesticides,and carcinogens.F) C) and D)
G) All of the above

Question 11

Bicarbonate that neutralizes stomach acid is produced by the

Accepted Answer

A)  duodenum.
B)  small intestine.
C)  pancreas.
D)  large intestine.
E)  liver.F) D) and E)
G) A) and D)

Question 12

The strong hydrochloric acid present in the gastric juice denatures proteins and activates ________,a protein digesting enzyme.

Accepted Answer

A)  pepsin
B)  trypsin
C)  chymotrypsin
D)  lipase
E)  amylaseF) B) and E)
G) B) and D)

Question 13

Choose the letter of the best match of the vitamins with the following deficiency symptoms.
-Vitamin K

Accepted Answer

A)  weakening of heart
B)  inflammation and breakdown of skin
C)  rickets
D)  severe bleeding
E)  scurvyF) night blindnessG) pernicious anemiaH) A) and G)
I) F) and G)

Question 14

Choose the letter of the best match of the vitamins with the following deficiency symptoms.
-Vitamin B1

Accepted Answer

A)  weakening of heart
B)  inflammation and breakdown of skin
C)  rickets
D)  severe bleeding
E)  scurvyF) night blindnessG) pernicious anemiaH) C) and D)
I) C) and F)

Question 15

A friend describes to you a choking event in her life.She says that "the food went down the wrong pipe." She meant that

Accepted Answer

A)  some food went down her esophagus.
B)  some food was stuck in her pharynx.
C)  some food went down her trachea.
D)  some food lodged in one of her salivary gland ducts.
E)  some food was stuck in her esophagus.F) A) and B)
G) All of the above

Question 16

Which of the following is not a secretion by the pancreas?

Accepted Answer

A)  trypsin
B)  chymotrypsin
C)  duotrypsin
D)  pancreatic amylase
E)  lipaseF) None of the above
G) C) and E)

Question 17

The stomach produces all of the following except

Accepted Answer

A)  HCl.
B)  pepsinogen.
C)  pepsin.
D)  aciD.
E)  bicarbonatE.F) A) and C)
G) C) and E)

Question 18

Choose the letter of the best match of the vitamins with the following deficiency symptoms.
-Vitamin B12

Accepted Answer

A)  weakening of heart
B)  inflammation and breakdown of skin
C)  rickets
D)  severe bleeding
E)  scurvyF) night blindnessG) pernicious anemiaH) B) and F)
I) A) and B)

Question 19

Saliva contains the hydrolytic enzyme,salivary amylase,which initiates the breakdown of the polysaccharide _________ into the disaccharide,maltose.

Accepted Answer

A)  cellulose
B)  sucrose
C)  glucose
D)  starch
E)  fructoseF) All of the above
G) B) and D)

Question 20

The rate at which an animal consumes energy at rest is called ________.

Accepted Answer

A)  the basal metabolic rate
B)  gluconeogenesis
C)  glycogenolysis
D)  ruminationE) B) and C)
F) All of the above

Exam 48: The Digestive System

Which of these does not aid in digestion?

Correct AnswerverifiedShow Answer

Which digestive hormone stimulates the secretion of bicarbonate by the pancreas?

Correct AnswerverifiedShow Answer

Because of the hepatic portal vein,the _____ is the first organ to receive most of the products of digestion.

Correct AnswerverifiedShow Answer

Which of the following is not true about the large intestine?

Correct AnswerverifiedB

In the diagram,which of the following processes causes the greatest insulin release?

Correct AnswerverifiedA

The products of fat digestion in the small intestine are reassembled into triglycerides by the intestinal epithelium,before combining them with proteins to form ____________.

Correct AnswerverifiedShow Answer

Why doesn't the stomach acid just digest right through the wall of the stomach?

Correct AnswerverifiedShow Answer

Why is the stomach acidic?

Correct AnswerverifiedB

Most digestion occurs in the first 25 centimeters of the 6-meter length of the small intestine called the

Correct AnswerverifiedShow Answer

Since the hepatic portal vein empties into the liver,it is able to control the amounts of

Correct AnswerverifiedShow Answer

Bicarbonate that neutralizes stomach acid is produced by the

Correct AnswerverifiedShow Answer

The strong hydrochloric acid present in the gastric juice denatures proteins and activates ________,a protein digesting enzyme.

Correct AnswerverifiedShow Answer

Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin K

Correct AnswerverifiedShow Answer

Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin B1

Correct AnswerverifiedShow Answer

A friend describes to you a choking event in her life.She says that "the food went down the wrong pipe." She meant that

Correct AnswerverifiedShow Answer

Which of the following is not a secretion by the pancreas?

Correct AnswerverifiedShow Answer

The stomach produces all of the following except

Correct AnswerverifiedShow Answer

Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin B12

Correct AnswerverifiedShow Answer

Saliva contains the hydrolytic enzyme,salivary amylase,which initiates the breakdown of the polysaccharide _________ into the disaccharide,maltose.

Correct AnswerverifiedShow Answer

The rate at which an animal consumes energy at rest is called ________.

Correct AnswerverifiedShow Answer

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A

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Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin B₁

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Choose the letter of the best match of the vitamins with the following deficiency symptoms. -Vitamin B₁₂

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