Question 1

Gastrin is a hormone secreted by the ________.

Accepted Answer

The answer of Gastrin is a hormone secreted by the...

Question 2

Segmentation is the primary means of mechanical breakdown of food in the digestive tract.

Accepted Answer

A) True 
 B)False

Question 3

The process by which undigested material is removed from the gastrointestinal tract is

Accepted Answer

A)  secretion 
B)  urination 
C)  mechanical processing 
D)  elimination 
E)  absorption 
A)  secretion 
B)  urination 
C)  mechanical processing 
D)  elimination 
E)  absorption

Question 4

The appendix is considered one of the lesser accessory organs of the digestive tract.

Accepted Answer

A) True 
 B)False

Question 5

Nutrient-rich blood moves from the small intestine to the liver via

Accepted Answer

A)  the pancreatic duct 
B)  lacteal vessels 
C)  the pulmonary circuit 
D)  the hepatic portal system 
E)  arterial flow from GI tract to the liver 
A)  the pancreatic duct 
B)  lacteal vessels 
C)  the pulmonary circuit 
D)  the hepatic portal system 
E)  arterial flow from GI tract to the liver

Question 6

Mucin in saliva functions to

Accepted Answer

A)  remove food particles from teeth 
B)  lower the pH of the saliva 
C)  raise the pH of the saliva 
D)  aid in food particles sticking together 
E)  partially digest carbohydrates in the mouth 
A)  remove food particles from teeth 
B)  lower the pH of the saliva 
C)  raise the pH of the saliva 
D)  aid in food particles sticking together 
E)  partially digest carbohydrates in the mouth

Question 7

Teeth are located in sockets in the jaws; these sockets are lined by a(n) ________ membrane.

Accepted Answer

The answer of Teeth are located in sockets in the...

Question 8

Postmenopausal women are often advised to take the mineral ________ as a supplement to their diet in order to prevent bone loss due to osteoporosis.

Accepted Answer

The answer of Postmenopausal women are often advised to take...

Question 9

"Gurgling of the stomach" is due to

Accepted Answer

A)  peristaltic contractions 
B)  the secretion of acids 
C)  the action of gastrin on the cells of the stomach 
D)  the production of chyme 
E)  the closing of the pyloric sphincter 
A)  peristaltic contractions 
B)  the secretion of acids 
C)  the action of gastrin on the cells of the stomach 
D)  the production of chyme 
E)  the closing of the pyloric sphincter

Question 10

The digestion of fats, proteins, and carbohydrates is completed in the

Accepted Answer

A)  stomach 
B)  small intestine 
C)  liver 
D)  pancreas 
E)  large intestine 
A)  stomach 
B)  small intestine 
C)  liver 
D)  pancreas 
E)  large intestine

Question 11

Bile assists in the chemical digestion of triglycerides by

Accepted Answer

A)  hydrolyzing them to glycerol and fatty acids 
B)  breaking peptide bonds and hydrolyzing them to amino acids 
C)  forming chylomicrons 
D)  emulsifying large fat droplets into tiny ones, providing more surface area for enzymes 
E)  assisting with the active transport of triglycerides into the blood 
A)  hydrolyzing them to glycerol and fatty acids 
B)  breaking peptide bonds and hydrolyzing them to amino acids 
C)  forming chylomicrons 
D)  emulsifying large fat droplets into tiny ones, providing more surface area for enzymes 
E)  assisting with the active transport of triglycerides into the blood

Question 12

Lipids are not soluble in water; therefore, they must be ________ before they can be digested.

Accepted Answer

The answer of Lipids are not soluble in water; therefore,...

Question 13

Stomach acid does not break down the wall of the stomach because gastric juice contains a powerful base that neutralizes the acid before it can cause damage.

Accepted Answer

A) True 
 B)False

Question 14

The amount of energy needed by the body to perform essential functions such as breathing is the ________.

Accepted Answer

basal meta

Question 15

Following the end of the school year, you celebrate a great semester by gorging on pizza. Assuming that your pizza has several meat toppings, discuss where in the digestive tract those meat toppings will be digested.

Accepted Answer

Proteins are digested in multiple locati

Question 16

Bile is an important enzyme that digests lipids.

Accepted Answer

A) True 
 B)False

Question 17

During swallowing

Accepted Answer

A)  the epiglottis bends to close the trachea 
B)  smooth muscle in the esophagus contracts slightly 
C)  the tongue flattens to the bottom of the mouth 
D)  salivary secretions stop 
E)  the hard palate rises to close the nasal passages 
A)  the epiglottis bends to close the trachea 
B)  smooth muscle in the esophagus contracts slightly 
C)  the tongue flattens to the bottom of the mouth 
D)  salivary secretions stop 
E)  the hard palate rises to close the nasal passages

Question 18

The layer of the GI tract wall that is responsible for motility is the

Accepted Answer

A)  muscularis 
B)  mucosa 
C)  serosa 
D)  submucosa 
E)  glandular 
A)  muscularis 
B)  mucosa 
C)  serosa 
D)  submucosa 
E)  glandular

Question 19

The interaction between an organism and its food is called ________.

Accepted Answer

The answer of The interaction between an organism and its...

Question 20

Which one of the following components of saliva has antibacterial properties?

Accepted Answer

A)  sodium bicarbonate 
B)  amylase 
C)  mucin 
D)  HCl 
E)  lysozyme 
A)  sodium bicarbonate 
B)  amylase 
C)  mucin 
D)  HCl 
E)  lysozyme

Exam 14: The Digestive System and Nutrition

Gastrin is a hormone secreted by the ________.

Segmentation is the primary means of mechanical breakdown of food in the digestive tract.

The process by which undigested material is removed from the gastrointestinal tract is

The appendix is considered one of the lesser accessory organs of the digestive tract.

Nutrient-rich blood moves from the small intestine to the liver via

Mucin in saliva functions to

Teeth are located in sockets in the jaws; these sockets are lined by a(n) ________ membrane.

Postmenopausal women are often advised to take the mineral ________ as a supplement to their diet in order to prevent bone loss due to osteoporosis.

"Gurgling of the stomach" is due to

The digestion of fats, proteins, and carbohydrates is completed in the

Bile assists in the chemical digestion of triglycerides by

Lipids are not soluble in water; therefore, they must be ________ before they can be digested.

Stomach acid does not break down the wall of the stomach because gastric juice contains a powerful base that neutralizes the acid before it can cause damage.

The amount of energy needed by the body to perform essential functions such as breathing is the ________.

Following the end of the school year, you celebrate a great semester by gorging on pizza. Assuming that your pizza has several meat toppings, discuss where in the digestive tract those meat toppings will be digested.

Bile is an important enzyme that digests lipids.

During swallowing

The layer of the GI tract wall that is responsible for motility is the

The interaction between an organism and its food is called ________.

Which one of the following components of saliva has antibacterial properties?

Human Biology, Science, and Society

The Chemistry of Living Things

Structure and Function of Cells

From Cells to Organ Systems

The Skeletal System

The Muscular System

Blood

Heart and Blood Vessels

The Immune System and Mechanisms of Defense

The Respiratory System: Exchange of Gases

The Nervous System: Integration and Control

Sensory Mechanisms

The Endocrine System

The Urinary System

Reproductive Systems

Cell Reproduction and Differentiation

Cancer: Uncontrolled Cell Division and Differentiation

Genetics and Inheritance

DNA Technology and Genetic Engineering

Development and Aging

Evolution and the Origins of Life

Ecosystems and Populations

Human Impacts, Biodiversity, and Environmental Issues

Filters