Question 1

"Food proteins trigger the formation of antibodies." What is being described?

Accepted Answer

A) An inappropriate reaction of the immune system,commonly seen in foods such as eggs,seafood,and nuts. 
B) An appropriate immune response,to harmful organisms,found in food. 
C) An appropriate reaction of the immune system,commonly seen in foods such as wheat,soy and peanuts. 
D) An inappropriate immune response to disease-causing organisms that contaminate food. 
A) An inappropriate reaction of the immune system,commonly seen in foods such as eggs,seafood,and nuts. 
B) An appropriate immune response,to harmful organisms,found in food. 
C) An appropriate reaction of the immune system,commonly seen in foods such as wheat,soy and peanuts. 
D) An inappropriate immune response to disease-causing organisms that contaminate food.

Question 2

At different stages of life,special diets may be needed to maximize nutrient intake and absorption.How does the digestive system of an infant differ from that of an older adult?

Accepted Answer

Infants only consume liquids;the enzyme

Question 3

What is the function of sphincters in the digestive tract?

Accepted Answer

A) to coordinate muscular contractions that propel food forward. 
B) to regulate the flow of food. 
C) to release bile. 
D) to regulate enzymatic reactions. 
A) to coordinate muscular contractions that propel food forward. 
B) to regulate the flow of food. 
C) to release bile. 
D) to regulate enzymatic reactions.

Question 4

Identify the organs of the digestive system.Briefly describe the digestive process that occurs in each organ or section of the system.

Accepted Answer

Mouth: Chews food and mixes it with sali

Question 5

What are the units of matter that cannot be further broken down by chemical means?

Accepted Answer

A) Organic compounds 
B) Cells 
C) Atoms 
D) Solvents 
A) Organic compounds 
B) Cells 
C) Atoms 
D) Solvents

Question 6

What are the wavelike contractions that move food through the digestive tract?

Accepted Answer

A) quickening. 
B) the Heimlich maneuver. 
C) peristalsis. 
D) segmentation. 
A) quickening. 
B) the Heimlich maneuver. 
C) peristalsis. 
D) segmentation.

Question 7

Which best describes transit time?

Accepted Answer

A) It is the amount of time taken by food to move through the digestive tract. 
B) It is rate at which chyme forms after food is swallowed. 
C) It is a measure of how quickly nutrients enter the blood. 
D) It is the rate at which food is swallowed. 
A) It is the amount of time taken by food to move through the digestive tract. 
B) It is rate at which chyme forms after food is swallowed. 
C) It is a measure of how quickly nutrients enter the blood. 
D) It is the rate at which food is swallowed.

Question 8

What regulates the release of bile and pancreatic enzymes?

Accepted Answer

Two hormones secrete

Question 9

Which statement best describes the absorption of nutrients?

Accepted Answer

A) From the cells of the small intestine,amino acids and glucose pass into the bloodstream while long chain fatty acids pass into the lymphatic system. 
B) From the cells of the large intestine,amino acids and amylose pass into the bloodstream while long chain fatty acids pass into the lymphatic system. 
C) From the parietal cells of the small intestine,glucose and short chain fatty acids pass into the bloodstream,while long chain fatty acids and fat-soluble vitamins enter the lymphatic system. 
D) From the mucosal cells of the large intestine,amino acids and fatty acids enter the lymphatic system,while indigestible fibre is eliminated from the body. 
A) From the cells of the small intestine,amino acids and glucose pass into the bloodstream while long chain fatty acids pass into the lymphatic system. 
B) From the cells of the large intestine,amino acids and amylose pass into the bloodstream while long chain fatty acids pass into the lymphatic system. 
C) From the parietal cells of the small intestine,glucose and short chain fatty acids pass into the bloodstream,while long chain fatty acids and fat-soluble vitamins enter the lymphatic system. 
D) From the mucosal cells of the large intestine,amino acids and fatty acids enter the lymphatic system,while indigestible fibre is eliminated from the body.

Question 10

Which statement best describes the typical action of a phagocyte?

Accepted Answer

A) Phagocytes are specialized cells in the pancreas that secrete digestive enzymes. 
B) Phagocytes engulf pathogens and present pathogen proteins. 
C) Phagocytes are lymphocytes that circulate in the lymphatic system. 
D) Phagocytes secrete antibodies that bind to disease-causing organisms. 
A) Phagocytes are specialized cells in the pancreas that secrete digestive enzymes. 
B) Phagocytes engulf pathogens and present pathogen proteins. 
C) Phagocytes are lymphocytes that circulate in the lymphatic system. 
D) Phagocytes secrete antibodies that bind to disease-causing organisms.

Question 11

What is the main site of nutrient absorption?

Accepted Answer

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

Question 12

What controls which substances enter and exit the cell?

Accepted Answer

A) cytoplasm 
B) mitochondria 
C) cell membrane 
D) organelle 
A) cytoplasm 
B) mitochondria 
C) cell membrane 
D) organelle

Question 13

Which absorption mechanism requires both a carrier molecule and energy to move across a cell membrane?

Accepted Answer

A) simple diffusion 
B) osmosis 
C) facilitated diffusion 
D) active transport 
A) simple diffusion 
B) osmosis 
C) facilitated diffusion 
D) active transport

Question 14

How is the release of bile and pancreatic juice into the small intestine controlled?

Accepted Answer

A) by hormones secreted by the mucosal lining of the duodenum. 
B) by the stimulation of stretch receptors in the stomach. 
C) by the hormone gastrin. 
D) by salivary amylase. 
A) by hormones secreted by the mucosal lining of the duodenum. 
B) by the stimulation of stretch receptors in the stomach. 
C) by the hormone gastrin. 
D) by salivary amylase.

Question 15

What is the primary function of the large intestine?

Accepted Answer

A) prepare unabsorbed food residue for excretion. 
B) provide a surface for nutrient absorption. 
C) to neutralize chyme. 
D) All of the above answer choices are correct. 
A) prepare unabsorbed food residue for excretion. 
B) provide a surface for nutrient absorption. 
C) to neutralize chyme. 
D) All of the above answer choices are correct.

Question 16

Which correctly describes the absorption of a fatty acid?

Accepted Answer

A) fatty acids move out of the mucosal cell as part of a micelle,enter the lacteal,then the lymphatic vessel and finally the blood stream. 
B) fatty acids move out of the chief cell as part of a chylomicron,enter the lymphatic vessel,then the lacteal and finally the blood stream. 
C) fatty acids move out of the mucosal cell as part of a chylomicron,enter the blood capillary,then the lymphatic vessel and finally the blood stream. 
D) fatty acids move out of the mucosal cell as part of a chylomicron,enter the lacteal,then the lymphatic vessel and finally the blood stream. 
A) fatty acids move out of the mucosal cell as part of a micelle,enter the lacteal,then the lymphatic vessel and finally the blood stream. 
B) fatty acids move out of the chief cell as part of a chylomicron,enter the lymphatic vessel,then the lacteal and finally the blood stream. 
C) fatty acids move out of the mucosal cell as part of a chylomicron,enter the blood capillary,then the lymphatic vessel and finally the blood stream. 
D) fatty acids move out of the mucosal cell as part of a chylomicron,enter the lacteal,then the lymphatic vessel and finally the blood stream.

Question 17

Explain why a person who consumes toast,fruit,and coffee for breakfast is more likely to feel hunger sooner compared to a person who eats an egg and fried potatoes for breakfast.

Accepted Answer

There are several factors that influence

Question 18

How do the gallbladder and pancreas contribute to the process of digestion?

Accepted Answer

The pancreas secretes bicarbonate to neu

Question 19

Explain how fat and glucose differ in terms of absorption and circulation.

Accepted Answer

Fat is formed into molecules too large t

Question 20

Which of the following does NOT affect stomach emptying?

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,fear,anger). 
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,fear,anger).

Exam 3: Digestion, Absorption, and Metabolism

"Food proteins trigger the formation of antibodies." What is being described?

At different stages of life,special diets may be needed to maximize nutrient intake and absorption.How does the digestive system of an infant differ from that of an older adult?

What is the function of sphincters in the digestive tract?

Identify the organs of the digestive system.Briefly describe the digestive process that occurs in each organ or section of the system.

What are the units of matter that cannot be further broken down by chemical means?

What are the wavelike contractions that move food through the digestive tract?

Which best describes transit time?

What regulates the release of bile and pancreatic enzymes?

Which statement best describes the absorption of nutrients?

Which statement best describes the typical action of a phagocyte?

What is the main site of nutrient absorption?

What controls which substances enter and exit the cell?

Which absorption mechanism requires both a carrier molecule and energy to move across a cell membrane?

How is the release of bile and pancreatic juice into the small intestine controlled?

What is the primary function of the large intestine?

Which correctly describes the absorption of a fatty acid?

Explain why a person who consumes toast,fruit,and coffee for breakfast is more likely to feel hunger sooner compared to a person who eats an egg and fried potatoes for breakfast.

How do the gallbladder and pancreas contribute to the process of digestion?

Explain how fat and glucose differ in terms of absorption and circulation.

Which of the following does NOT affect stomach emptying?

Nutrition: Food for Health

Nutrition Guidelines: Applying the Science of Nutrition

Carbohydrates: Sugars, Starches, and Fibre

Lipids

Proteins and Amino Acids

Energy Balance and Weight Management

A: the Water-Soluble Vitamins

The Fat-Soluble Vitamins

Water and the Electrolytes

Major Minerals and Bone Health

The Trace Elements

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 1: Focus on Beyond the Basics

Focus 2: Focus on Alcohol

Focus 3: Focus on Obesity, Metabolism, and Disease Risk

Focus 4: Focus on Phytochemicals

Focus5:focus on Natural Health Products

Focus 6: Focus on Integrating Nutrient Function in the Body

Focus 7: Focus on Eating Disorders

Focus 8: Focus on Biotechnology

Filters