Question 1

Which is the main organic molecule that is digested by the secretions of the stomach?

Accepted Answer

A) carbohydrate 
B) lipid 
C) nucleic acid 
D) protein 
A) carbohydrate 
B) lipid 
C) nucleic acid 
D) protein

Question 2

Digestion is a process of mechanical and chemical breakdown of larger food molecules into smaller ones that can be absorbed.

Accepted Answer

A) True 
 B)False

Question 3

What are the two main chemicals secreted by the gastric pits in the stomach?

Accepted Answer

hydrochlor

Question 4

Digestion of which organic molecule takes a somewhat more complicated route than most nutrients?

Accepted Answer

A) carbohydrate 
B) fat 
C) protein 
D) nucleic acid 
A) carbohydrate 
B) fat 
C) protein 
D) nucleic acid

Question 5

The outermost layer of the digestive tract is the:

Accepted Answer

A) muscularis externa. 
B) submucosa. 
C) serosa. 
D) mucosa. 
A) muscularis externa. 
B) submucosa. 
C) serosa. 
D) mucosa.

Question 6

Refer to the figure below, and then answer the question that follows.
  
-Which structure,A,B,C,or D,transports urine using peristalsis?

Accepted Answer

The answer of Refer to the figure below, and then...

Question 7

A friend tells you that she wants to try to be a strict vegetarian or vegan,but her parents are discouraging her from doing so.Her parents say she will not get enough protein or vitamins.What advice can you offer your friend to help her convince her parents she will get enough protein and vitamins on a vegetarian or vegan diet?

Accepted Answer

Although it is true that animal nutrient

Question 8

Voluntary control of urination is accomplished by:

Accepted Answer

A) an external sphincter made of skeletal muscle. 
B) an internal sphincter of smooth muscle. 
C) the skeletal muscle of the bladder. 
D) contraction of the ureters. 
A) an external sphincter made of skeletal muscle. 
B) an internal sphincter of smooth muscle. 
C) the skeletal muscle of the bladder. 
D) contraction of the ureters.

Question 9

Deficiency of which nutrient can cause muscle cramps,irregular heartbeat,or paralysis?

Accepted Answer

A) potassium 
B) sulfur 
C) iron 
D) copper 
A) potassium 
B) sulfur 
C) iron 
D) copper

Question 10

Chemical digestion begins in the:

Accepted Answer

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

Question 11

Which part of the brain is responsible for producing and controlling the release of the hormone ADH?

Accepted Answer

The answer of Which part of the brain is responsible...

Question 12

Most digested food is absorbed into the blood by the villi of the small intestine.

Accepted Answer

A) True 
 B)False

Question 13

Match between columns
                        Premises: Ureter
Collecting duct
Urethra
Urinary bladder

Accepted Answer

The Answer of carries urine to the bladder and carries is...

Question 14

The appendix is attached to which portion of the large intestine?

Accepted Answer

A) the cecum 
B) the colon 
C) the rectum 
D) the ileocecal valve 
A) the cecum 
B) the colon 
C) the rectum 
D) the ileocecal valve

Question 15

Place the following in order of the movement of urine through the urinary system: (1)urethra,(2)ureter,(3)kidney,(4)urinary bladder.

Accepted Answer

A) 1, 2, 3, 4 
B) 3, 4, 1, 2 
C) 1, 3, 2, 4 
D) 2, 3, 4, 1 
E) 3, 2, 4, 1 
A) 1, 2, 3, 4 
B) 3, 4, 1, 2 
C) 1, 3, 2, 4 
D) 2, 3, 4, 1 
E) 3, 2, 4, 1

Question 16

A classmate tells you that his mother had her gallbladder removed,and he says she wants to cut down on fat in her diet.He comments that he's not sure why because lipase is the enzyme that breaks down fats,and bile stored in the gallbladder isn't an enzyme.Although his last statement is factually true,how would you help your classmate understand this connection?

Accepted Answer

Bile greatly increases the eff

Question 17

Why are saturated fats considered a less healthy nutrient?

Accepted Answer

A) Because saturated fats are from animal sources, they can produce allergic reactions. 
B) Saturated fats cannot be used for energy as the other fats can. 
C) Saturated fats raise HDL levels, which contributes to heart disease. 
D) Saturated fats raise LDL levels, which contributes to heart disease. 
A) Because saturated fats are from animal sources, they can produce allergic reactions. 
B) Saturated fats cannot be used for energy as the other fats can. 
C) Saturated fats raise HDL levels, which contributes to heart disease. 
D) Saturated fats raise LDL levels, which contributes to heart disease.

Question 18

Calories are a measure of the:

Accepted Answer

A) nutritional value of food. 
B) amount of energy the food contains. 
C) weight of the food. 
D) amount of minerals and vitamins a food contains. 
A) nutritional value of food. 
B) amount of energy the food contains. 
C) weight of the food. 
D) amount of minerals and vitamins a food contains.

Question 19

In what way are the essential amino acids different from nonessential amino acids?

Accepted Answer

A) Nonessential amino acids are not necessary for any proteins we make. 
B) Nonessential amino acids are not absorbed by the digestive tract. 
C) Essential amino acids cannot be made and must be obtained from food. 
D) Essential amino acids are the ones exclusively used to make enzymes. 
A) Nonessential amino acids are not necessary for any proteins we make. 
B) Nonessential amino acids are not absorbed by the digestive tract. 
C) Essential amino acids cannot be made and must be obtained from food. 
D) Essential amino acids are the ones exclusively used to make enzymes.

Question 20

What is the function of the rugae,or folds in the stomach?

Accepted Answer

A) The rugae push food down toward the intestine. 
B) The rugae allow the stomach to expand when food enters. 
C) The rugae neutralize excess acid. 
D) The rugae manufacture bile. 
A) The rugae push food down toward the intestine. 
B) The rugae allow the stomach to expand when food enters. 
C) The rugae neutralize excess acid. 
D) The rugae manufacture bile.

Exam 31: Transport and Exchange 2: Digestion, nutrition, and Elimination

Which is the main organic molecule that is digested by the secretions of the stomach?

Digestion is a process of mechanical and chemical breakdown of larger food molecules into smaller ones that can be absorbed.

What are the two main chemicals secreted by the gastric pits in the stomach?

Digestion of which organic molecule takes a somewhat more complicated route than most nutrients?

The outermost layer of the digestive tract is the:

Refer to the figure below, and then answer the question that follows. -Which structure,A,B,C,or D,transports urine using peristalsis?

Voluntary control of urination is accomplished by:

Deficiency of which nutrient can cause muscle cramps,irregular heartbeat,or paralysis?

Chemical digestion begins in the:

Which part of the brain is responsible for producing and controlling the release of the hormone ADH?

Most digested food is absorbed into the blood by the villi of the small intestine.

The appendix is attached to which portion of the large intestine?

Place the following in order of the movement of urine through the urinary system: (1)urethra,(2)ureter,(3)kidney,(4)urinary bladder.

Why are saturated fats considered a less healthy nutrient?

Calories are a measure of the:

In what way are the essential amino acids different from nonessential amino acids?

What is the function of the rugae,or folds in the stomach?

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

Vital Harvest: Deriving Energy From Food

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

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