Question 1

The image below is illustrating the

Accepted Answer

A) small intestine lined with villi in order to increase nutrient absorption. 
B) large intestine lined with villi in order to increase nutrient absorption. 
C) small intestine lined with cilia in order to increase nutrient absorption. 
D) large intestine lined with flagella in order to increase nutrient absorption. 
A) small intestine lined with villi in order to increase nutrient absorption. 
B) large intestine lined with villi in order to increase nutrient absorption. 
C) small intestine lined with cilia in order to increase nutrient absorption. 
D) large intestine lined with flagella in order to increase nutrient absorption.

Question 2

The journey of a potato chip through our digestive tract would be

Accepted Answer

A) mouth to esophagus to stomach to liver to small intestine to large intestine to anus. 
B) mouth to esophagus to stomach to small intestine to large intestine to anus. 
C) mouth to stomach to esophagus to pancreas to small intestine to large intestine to anus. 
D) mouth to esophagus to stomach to large intestine to small intestine to anus. 
A) mouth to esophagus to stomach to liver to small intestine to large intestine to anus. 
B) mouth to esophagus to stomach to small intestine to large intestine to anus. 
C) mouth to stomach to esophagus to pancreas to small intestine to large intestine to anus. 
D) mouth to esophagus to stomach to large intestine to small intestine to anus.

Question 3

Which of the following is not one of the three elements that provide the framework for the complex organic compounds that characterize life?

Accepted Answer

A) carbon 
B) iron 
C) hydrogen 
D) oxygen 
A) carbon 
B) iron 
C) hydrogen 
D) oxygen

Question 4

Which of the following does not occur in the colon?

Accepted Answer

A) absorption of minerals 
B) breakdown of fats and carbohydrates 
C) absorption of water 
D) vitamin production by prokaryotic organisms 
A) absorption of minerals 
B) breakdown of fats and carbohydrates 
C) absorption of water 
D) vitamin production by prokaryotic organisms

Question 5

Not all parts of the food that humans ingest is used by our bodies. Fiber, consisting mostly of cellulose, for instance, is excreted without providing nutrition. Which of the following statements explains why fiber is not used as a nutrient in humans?

Accepted Answer

A) The human gut is unable to break it down; thus it cannot be absorbed across the intestinal cells' membranes. 
B) Fiber is an amino acid but not one of the essential amino acids, so we do not need to absorb it as a nutrient. 
C) The fiber content of human foods is so low that it is not worthwhile for our bodies to expend energy to extract its nutrients. 
D) The fiber is digested into such small molecules that they become nutritionally insignificant. 
A) The human gut is unable to break it down; thus it cannot be absorbed across the intestinal cells' membranes. 
B) Fiber is an amino acid but not one of the essential amino acids, so we do not need to absorb it as a nutrient. 
C) The fiber content of human foods is so low that it is not worthwhile for our bodies to expend energy to extract its nutrients. 
D) The fiber is digested into such small molecules that they become nutritionally insignificant.

Question 6

Seasonal affective disorder (SAD)is caused by both neurological and dietary components.

Accepted Answer

A) True 
 B)False

Question 7

In mammals, the mechanical breakdown of food involves teeth. In worms, the mechanical breakdown is accomplished by a ____________________.

Accepted Answer

The answer of In mammals, the mechanical breakdown of food...

Question 8

Only guinea pigs, bats, the great apes, and humans must get vitamin C from their diets rather than synthesizing it themselves.

Accepted Answer

A) True 
 B)False

Question 9

Because vitamins are so important to metabolism, it is important to ingest large amounts of them in the form of vitamin supplements.

Accepted Answer

A) True 
 B)False

Question 10

Prior to a sporting event, many competitors will ingest lipids for quick energy sources.

Accepted Answer

A) True 
 B)False

Question 11

Because they are not soluble in water, fats are digested in a different way than proteins and carbohydrates.

Accepted Answer

A) True 
 B)False

Question 12

The figure below shows four types of nutrients that are absorbable by animal cells.  
Which of the above molecules could be absorbed by the digestive tract without further digestion by enzymes?

Accepted Answer

A) polysaccharide 
B) disaccharide 
C) protein 
D) monoglyceride 
A) polysaccharide 
B) disaccharide 
C) protein 
D) monoglyceride

Question 13

For most animals, cellulose is a good source of energy and fiber.

Accepted Answer

A) True 
 B)False

Question 14

Many ____________________, small inorganic compounds that are needed in trace amounts, are essential to the proper function of proteins.

Accepted Answer

The answer of Many ____________________, small inorganic compounds that are...

Question 15

The liver secretes bile to the

Accepted Answer

A) pancreas. 
B) small intestine. 
C) gallbladder. 
D) large intestine. 
A) pancreas. 
B) small intestine. 
C) gallbladder. 
D) large intestine.

Question 16

Chemical digestion occurs inside of the organ indicated by the arrow in the figure below.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following statements about human digestion is true?

Accepted Answer

A) We are able to directly absorb most large nutrient molecules such as starch. 
B) We must process nutrients in order to absorb them. 
C) The absorptive surface of our gut lets all materials pass through it into the bloodstream. 
D) The human gut is able to absorb complex proteins easily. 
A) We are able to directly absorb most large nutrient molecules such as starch. 
B) We must process nutrients in order to absorb them. 
C) The absorptive surface of our gut lets all materials pass through it into the bloodstream. 
D) The human gut is able to absorb complex proteins easily.

Question 18

The nutrients in food enter our body by crossing through the epithelial cells lining the ____________________ intestine.

Accepted Answer

The answer of The nutrients in food enter our body...

Question 19

The major organ that supplies digestive enzymes and bicarbonate to the small intestine is the ____________________.

Accepted Answer

The answer of The major organ that supplies digestive enzymes...

Question 20

Food must be broken down chemically before nutrients in it can be absorbed.

Accepted Answer

A) True 
 B)False

Exam 27: Nutrition and Digestion

The image below is illustrating the

The journey of a potato chip through our digestive tract would be

Which of the following is not one of the three elements that provide the framework for the complex organic compounds that characterize life?

Which of the following does not occur in the colon?

Not all parts of the food that humans ingest is used by our bodies. Fiber, consisting mostly of cellulose, for instance, is excreted without providing nutrition. Which of the following statements explains why fiber is not used as a nutrient in humans?

Seasonal affective disorder (SAD)is caused by both neurological and dietary components.

In mammals, the mechanical breakdown of food involves teeth. In worms, the mechanical breakdown is accomplished by a ____________________.

Only guinea pigs, bats, the great apes, and humans must get vitamin C from their diets rather than synthesizing it themselves.

Because vitamins are so important to metabolism, it is important to ingest large amounts of them in the form of vitamin supplements.

Prior to a sporting event, many competitors will ingest lipids for quick energy sources.

Because they are not soluble in water, fats are digested in a different way than proteins and carbohydrates.

The figure below shows four types of nutrients that are absorbable by animal cells. Which of the above molecules could be absorbed by the digestive tract without further digestion by enzymes?

For most animals, cellulose is a good source of energy and fiber.

Many ____________________, small inorganic compounds that are needed in trace amounts, are essential to the proper function of proteins.

The liver secretes bile to the

Chemical digestion occurs inside of the organ indicated by the arrow in the figure below.

Which of the following statements about human digestion is true?

The nutrients in food enter our body by crossing through the epithelial cells lining the ____________________ intestine.

The major organ that supplies digestive enzymes and bicarbonate to the small intestine is the ____________________.

Food must be broken down chemically before nutrients in it can be absorbed.

The Nature of Science and the Characteristics of Life

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

Dna Technology

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Evolutionary History of Life

The Biosphere

Growth of Populations

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons, Muscles, and Movement

Defenses Against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

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