Question 1

What enzyme initiates the process of starch digestion in the mouth?

Accepted Answer

A) salivary lipase 
B) salivary protease 
C) salivary sucrase 
D) salivary amylase 
E) salivary lactase 
A) salivary lipase 
B) salivary protease 
C) salivary sucrase 
D) salivary amylase 
E) salivary lactase D

Question 2

What serves as an emulsifying agent for fats in the small intestine?

Accepted Answer

A) lipase 
B) bile 
C) amylase 
D) pepsin 
E) maltase 
A) lipase 
B) bile 
C) amylase 
D) pepsin 
E) maltase B

Question 3

Pepsin is an enzyme that digests proteins at acidic pH.Therefore,it must act in the

Accepted Answer

A) stomach. 
B) small intestine. 
C) mouth. 
D) large intestine. 
E) esophagus. 
A) stomach. 
B) small intestine. 
C) mouth. 
D) large intestine. 
E) esophagus. A

Question 4

Which of the following is not a function of the digestive system?

Accepted Answer

A) to ingest food 
B) to digest food into small nutrients so that the molecules can pass through membranes 
C) to absorb nutrient molecules 
D) to eliminate indigestible remains 
E) to protect against pathogens 
A) to ingest food 
B) to digest food into small nutrients so that the molecules can pass through membranes 
C) to absorb nutrient molecules 
D) to eliminate indigestible remains 
E) to protect against pathogens

Question 5

Smooth muscles in the stomach are capable of mechanical digestion.

Accepted Answer

A) True 
 B)False

Question 6

Today,obesity is often defined as having a body mass index of 20 or greater.

Accepted Answer

A) True 
 B)False

Question 7

The broad band of loose connective tissue beneath the mucosa that contains blood vessels,lymph,and nerves is called the

Accepted Answer

A) mucosA. 
B) submucosa. 
C) muscularis. 
D) serosa. 
E) diverticulum. 
A) mucosA. 
B) submucosa. 
C) muscularis. 
D) serosa. 
E) diverticulum.

Question 8

The primary function of the stomach is to

Accepted Answer

A) break down fats. 
B) store food,churn,and begin digestion. 
C) absorb major nutrients. 
D) package feces. 
E) eliminate water and tissue fluid. 
A) break down fats. 
B) store food,churn,and begin digestion. 
C) absorb major nutrients. 
D) package feces. 
E) eliminate water and tissue fluid.

Question 9

The small intestine is longer than the large intestine.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is necessary for strong bones and teeth,nerve conduction,muscle contraction,and blood clotting?

Accepted Answer

A) calcium 
B) iron 
C) magnesium 
D) sodium 
E) sulfur 
A) calcium 
B) iron 
C) magnesium 
D) sodium 
E) sulfur

Question 11

Mr.Staub was rushed to the hospital because he had intense pain in his chest.After running tests on Mr.Staub it was determined that it was not suffering from a heart attack but from

Accepted Answer

A) diverticulitis. 
B) gastroesophageal reflux disease. 
C) gingivitis. 
D) peridontitis. 
E) inflammatory bowel syndromE. 
A) diverticulitis. 
B) gastroesophageal reflux disease. 
C) gingivitis. 
D) peridontitis. 
E) inflammatory bowel syndromE.

Question 12

Which of the following is not associated with the small intestine?

Accepted Answer

A) many villi 
B) gastric pits 
C) brush border enzymes 
D) lacteals 
E) bile and lipase 
A) many villi 
B) gastric pits 
C) brush border enzymes 
D) lacteals 
E) bile and lipase

Question 13

What is the correct order of components of the digestive tract?

Accepted Answer

A) mouth,esophagus,pharynx,small intestine,stomach,large intestine,rectum,and anus 
B) mouth,pharynx,esophagus,stomach,large intestine,small intestine,rectum,and anus 
C) mouth,pharynx,stomach,esophagus,small intestine,rectum,large intestine,and anus 
D) mouth,pharynx,esophagus,stomach,small intestine,large intestine,rectum,and anus 
E) mouth,rectum,large intestine,small intestine,stomach,esophagus,pharynx,and anus 
A) mouth,esophagus,pharynx,small intestine,stomach,large intestine,rectum,and anus 
B) mouth,pharynx,esophagus,stomach,large intestine,small intestine,rectum,and anus 
C) mouth,pharynx,stomach,esophagus,small intestine,rectum,large intestine,and anus 
D) mouth,pharynx,esophagus,stomach,small intestine,large intestine,rectum,and anus 
E) mouth,rectum,large intestine,small intestine,stomach,esophagus,pharynx,and anus

Question 14

List the layers of the gastrointestinal tract wall,starting with the outer layer and moving inward.

Accepted Answer

The outermost layer is the serosa layer

Question 15

Recent studies of an oyster-rich bay indicated a high coliform count.What should the fisheries officers do?

Accepted Answer

A) Nothing.A high coliform count is normal. 
B) Nothing.This is good for oyster production. 
C) Shut down the bay.This is harmful to humans who eat the oysters. 
D) Shut down the bay.This is harmful to the oysters. 
E) Nothing.A high coliform count would be beneficial to humans who ate the oysters. 
A) Nothing.A high coliform count is normal. 
B) Nothing.This is good for oyster production. 
C) Shut down the bay.This is harmful to humans who eat the oysters. 
D) Shut down the bay.This is harmful to the oysters. 
E) Nothing.A high coliform count would be beneficial to humans who ate the oysters.

Question 16

The gallbladder produces bile.

Accepted Answer

A) True 
 B)False

Question 17

What type of hepatitis is usually acquired through blood transfusions or sexual contact?

Accepted Answer

A) B 
B) A 
C) C 
D) D 
E) E 
A) B 
B) A 
C) C 
D) D 
E) E

Question 18

Which of the following is not found in/on the tongue?

Accepted Answer

A) muscle 
B) dentin 
C) taste buds 
D) mucous membrane 
E) sensory receptors 
A) muscle 
B) dentin 
C) taste buds 
D) mucous membrane 
E) sensory receptors

Question 19

A deficiency in which mineral leads to thyroid deficiency?

Accepted Answer

A) iodine 
B) copper 
C) zinc 
D) selenium 
E) manganese 
A) iodine 
B) copper 
C) zinc 
D) selenium 
E) manganese

Question 20

Constipation can be treated by adding fiber to the diet.

Accepted Answer

A) True 
 B)False

Exam 9: Digestive System and Nutrition

What enzyme initiates the process of starch digestion in the mouth?

What serves as an emulsifying agent for fats in the small intestine?

Pepsin is an enzyme that digests proteins at acidic pH.Therefore,it must act in the

Which of the following is not a function of the digestive system?

Smooth muscles in the stomach are capable of mechanical digestion.

Today,obesity is often defined as having a body mass index of 20 or greater.

The broad band of loose connective tissue beneath the mucosa that contains blood vessels,lymph,and nerves is called the

The primary function of the stomach is to

The small intestine is longer than the large intestine.

Which of the following is necessary for strong bones and teeth,nerve conduction,muscle contraction,and blood clotting?

Mr.Staub was rushed to the hospital because he had intense pain in his chest.After running tests on Mr.Staub it was determined that it was not suffering from a heart attack but from

Which of the following is not associated with the small intestine?

What is the correct order of components of the digestive tract?

List the layers of the gastrointestinal tract wall,starting with the outer layer and moving inward.

Recent studies of an oyster-rich bay indicated a high coliform count.What should the fisheries officers do?

The gallbladder produces bile.

What type of hepatitis is usually acquired through blood transfusions or sexual contact?

Which of the following is not found in/on the tongue?

A deficiency in which mineral leads to thyroid deficiency?

Constipation can be treated by adding fiber to the diet.

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