Question 1

Most chemical digestion occurs in the:

Accepted Answer

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

Question 2

What type of digestion takes place inside the mouth?

Accepted Answer

A) ingestion only 
B) mechanical digestion only 
C) chemical digestion only 
D) absorption only 
E) mechanical and chemical digestion 
A) ingestion only 
B) mechanical digestion only 
C) chemical digestion only 
D) absorption only 
E) mechanical and chemical digestion

Question 3

Which of the following produces the cellulose-digesting enzyme (cellulase)in a cow's digestive tract?

Accepted Answer

A) liver 
B) pancreas 
C) stomach 
D) microorganisms 
E) body cells lining the rumen 
A) liver 
B) pancreas 
C) stomach 
D) microorganisms 
E) body cells lining the rumen

Question 4

Cancer patients who receive radiation treatment or chemotherapy often slough off their most rapidly dividing body cells, such as those in the hair follicles and those lining the gastrointestinal tract. This results in much of the pain, fatigue, and other complications associated with the cancer treatment. Understandably, some loss of hair is expected when undergoing such procedures. Which of the following would you also expect to occur with cancer treatment?

Accepted Answer

A) excess mucus production in the airways 
B) reduced nutrient absorption and subsequent weakness 
C) elevated lipid and glucose levels in the blood 
D) constipation due to excessive water reabsorption 
E) high blood pressure 
A) excess mucus production in the airways 
B) reduced nutrient absorption and subsequent weakness 
C) elevated lipid and glucose levels in the blood 
D) constipation due to excessive water reabsorption 
E) high blood pressure

Question 5

Which of the following contains undigested material (such as plant fiber)and dead microorganisms that are eliminated from the body?

Accepted Answer

A) bile 
B) chyme 
C) feces 
D) secretion 
E) pancreatic juices 
A) bile 
B) chyme 
C) feces 
D) secretion 
E) pancreatic juices

Question 6

Digestion in humans occurs in a gastrovascular cavity. True or False?

Accepted Answer

A) True 
 B)False

Question 7

In cnidarians, which have a gastrovascular cavity:

Accepted Answer

A) digestion is exclusively intracellular. 
B) digestion and elimination occur in the same cavity. 
C) digestion is unnecessary because of the small size of the particles absorbed. 
D) absorption occurs within collar cells. 
E) digestion is in a tube running through the body. 
A) digestion is exclusively intracellular. 
B) digestion and elimination occur in the same cavity. 
C) digestion is unnecessary because of the small size of the particles absorbed. 
D) absorption occurs within collar cells. 
E) digestion is in a tube running through the body.

Question 8

In the typical American diet, most of the energy comes from carbohydrate sources. True or False?

Accepted Answer

A) True 
 B)False

Question 9

Which of the following plays a key role in the absorption and distribution of fats?

Accepted Answer

A) segmentation movement 
B) lacteal 
C) secretin 
D) microvilli 
E) large intestine 
A) segmentation movement 
B) lacteal 
C) secretin 
D) microvilli 
E) large intestine

Question 10

What structure prevents swallowed material from passing into the larynx?

Accepted Answer

A) tongue 
B) pharynx 
C) glottis 
D) epiglottis 
E) pyloris 
A) tongue 
B) pharynx 
C) glottis 
D) epiglottis 
E) pyloris

Question 11

Digested fats are packaged into ________, which enter the lymph.

Accepted Answer

A) chylomicrons 
B) micelles 
C) lipases 
D) bile salts 
E) chyme 
A) chylomicrons 
B) micelles 
C) lipases 
D) bile salts 
E) chyme

Question 12

The large intestine is the longest part of the digestive tract. True or False?

Accepted Answer

A) True 
 B)False

Question 13

Vitamin K is required for:

Accepted Answer

A) night vision. 
B) blood clotting. 
C) restful sleep. 
D) proper kidney function. 
E) transduction of nerve impulses. 
A) night vision. 
B) blood clotting. 
C) restful sleep. 
D) proper kidney function. 
E) transduction of nerve impulses.

Question 14

Explain why pancreatic juice is important in digestion.

Accepted Answer

Pancreatic juice neutralizes t

Question 15

The stomach is different from the small intestine because it:

Accepted Answer

A) does not secrete mucus. 
B) secretes enzymes. 
C) produces enzymes that work best at a very low pH. 
D) absorbs the products of digestion. 
E) has microvilli. 
A) does not secrete mucus. 
B) secretes enzymes. 
C) produces enzymes that work best at a very low pH. 
D) absorbs the products of digestion. 
E) has microvilli.

Question 16

Which of the following are absorbed directly into the bloodstream?

Accepted Answer

A) amino acids only 
B) monosaccharides only 
C) fats only 
D) amino acids and monosaccharides 
E) amino acids, monosaccharides, and fats 
A) amino acids only 
B) monosaccharides only 
C) fats only 
D) amino acids and monosaccharides 
E) amino acids, monosaccharides, and fats

Question 17

The bacteria in the large intestine manufacture:

Accepted Answer

A) some minerals. 
B) vitamin K. 
C) vitamin A. 
D) vitamin C. 
A) some minerals. 
B) vitamin K. 
C) vitamin A. 
D) vitamin C.

Question 18

The major function of the large intestine is to:

Accepted Answer

A) digest food. 
B) produce digestive enzymes. 
C) make bile. 
D) reabsorb water. 
E) neutralize chyme. 
A) digest food. 
B) produce digestive enzymes. 
C) make bile. 
D) reabsorb water. 
E) neutralize chyme.

Question 19

Which vitamin is involved with blood clotting?

Accepted Answer

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

Question 20

Which of the following BEST describes the process of bringing food into the digestive tract through an opening?

Accepted Answer

A) digestion 
B) indigestion 
C) ingestion 
D) absorption 
E) adsorption 
A) digestion 
B) indigestion 
C) ingestion 
D) absorption 
E) adsorption

Exam 34: Nutrition and Digestion

Most chemical digestion occurs in the:

What type of digestion takes place inside the mouth?

Which of the following produces the cellulose-digesting enzyme (cellulase)in a cow's digestive tract?

Which of the following contains undigested material (such as plant fiber)and dead microorganisms that are eliminated from the body?

Digestion in humans occurs in a gastrovascular cavity. True or False?

In cnidarians, which have a gastrovascular cavity:

In the typical American diet, most of the energy comes from carbohydrate sources. True or False?

Which of the following plays a key role in the absorption and distribution of fats?

What structure prevents swallowed material from passing into the larynx?

Digested fats are packaged into ________, which enter the lymph.

The large intestine is the longest part of the digestive tract. True or False?

Vitamin K is required for:

Explain why pancreatic juice is important in digestion.

The stomach is different from the small intestine because it:

Which of the following are absorbed directly into the bloodstream?

The bacteria in the large intestine manufacture:

The major function of the large intestine is to:

Which vitamin is involved with blood clotting?

Which of the following BEST describes the process of bringing food into the digestive tract through an opening?

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

Filters