Question 1

The bonds that join amino acids together to form a protein are called peptide bonds.

Accepted Answer

A) True 
 B)False

Question 2

Match the term with its definition or explanation.
-The most important inorganic compound in the body

Accepted Answer

A) Proton 
B) Electron 
C) Neutron 
D) Atomic mass 
E) Atomic number
F)Element
G)Compound
H)Hydrolysis
I)Acid
J)Base
K)Covalent bond
L)Ionic bond
M)Water
N)Buffer
O)Electrolytes
P)Dehydration synthesis 
A) Proton 
B) Electron 
C) Neutron 
D) Atomic mass 
E) Atomic number
F)Element
G)Compound
H)Hydrolysis
I)Acid
J)Base
K)Covalent bond
L)Ionic bond
M)Water
N)Buffer
O)Electrolytes
P)Dehydration synthesis

Question 3

This element is not one of the elements that make up 96% of the body.

Accepted Answer

A)  Nitrogen 
B)  Hydrogen 
C)  Oxygen 
D)  Sodium 
A)  Nitrogen 
B)  Hydrogen 
C)  Oxygen 
D)  Sodium

Question 4

Which of the following is a disaccharide?

Accepted Answer

A)  Glucose 
B)  Sucrose 
C)  Starch 
D)  Glycogen 
A)  Glucose 
B)  Sucrose 
C)  Starch 
D)  Glycogen

Question 5

A solution with a pH of 6

Accepted Answer

A)  is an acid 
B)  is a base 
C)  has 10 times more H⁺ ions than a solution with a pH of 5 
D)  both a and c above 
A)  is an acid 
B)  is a base 
C)  has 10 times more H⁺ ions than a solution with a pH of 5 
D)  both a and c above

Question 6

An acid

Accepted Answer

A)  has a pH greater than 7 
B)  has a pH less than 7 
C)  has more OH- ions than H⁺ ions in solution 
D)  both a and c above 
A)  has a pH greater than 7 
B)  has a pH less than 7 
C)  has more OH- ions than H⁺ ions in solution 
D)  both a and c above

Question 7

Which of the following is a structural protein?

Accepted Answer

A)  Hormones 
B)  Collagen 
C)  Growth factor 
D)  Enzymes 
A)  Hormones 
B)  Collagen 
C)  Growth factor 
D)  Enzymes

Question 8

Which of the following has uracil as one of its nucleotides?

Accepted Answer

A)  DNA 
B)  RNA 
C)  Both a and b above 
D)  Neither a nor b above 
A)  DNA 
B)  RNA 
C)  Both a and b above 
D)  Neither a nor b above

Question 9

When the body removes CO₂ by way of the respiratory system

Accepted Answer

A)  it lowers the pH of the blood 
B)  it raises the pH of the blood 
C)  it has no effect on pH because CO₂ is neither an acid nor a base 
D)  it is acting as a buffer 
A)  it lowers the pH of the blood 
B)  it raises the pH of the blood 
C)  it has no effect on pH because CO₂ is neither an acid nor a base 
D)  it is acting as a buffer

Question 10

Match the name of the element with the correct symbol.
-K

Accepted Answer

A) Potassium 
B) Phosphorus 
C) Sodium 
D) Calcium 
E) Carbon
F)Hydrogen
G)Chlorine
H)Nitrogen 
A) Potassium 
B) Phosphorus 
C) Sodium 
D) Calcium 
E) Carbon
F)Hydrogen
G)Chlorine
H)Nitrogen

Question 11

In a dehydration synthesis reaction:

Accepted Answer

A)  hydrogen and oxygen are removed from the reactants 
B)  water is added to the reactants 
C)  water is broken down into hydrogen and oxygen 
D)  both a and c above 
A)  hydrogen and oxygen are removed from the reactants 
B)  water is added to the reactants 
C)  water is broken down into hydrogen and oxygen 
D)  both a and c above

Question 12

When a neutralization reaction occurs between a strong acid and base,one of the end products is water.

Accepted Answer

A) True 
 B)False

Question 13

Aqueous solutions have water as the solvent.

Accepted Answer

A) True 
 B)False

Question 14

Glycogen and starch are both polysaccharides.

Accepted Answer

A) True 
 B)False

Question 15

Electrons move in an elliptical orbit rather than a circular orbit around the nucleus.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is a starting substance for making the hormones estrogen and testosterone?

Accepted Answer

A)  Lactose 
B)  Collagen 
C)  DNA 
D)  Cholesterol 
A)  Lactose 
B)  Collagen 
C)  DNA 
D)  Cholesterol

Question 17

The ions that are dissolved in water are called electrolytes.

Accepted Answer

A) True 
 B)False

Question 18

A buffer is a chemical that helps prevent a sudden change in pH.

Accepted Answer

A) True 
 B)False

Question 19

The primary source of energy used by the body is a carbohydrate.

Accepted Answer

A) True 
 B)False

Question 20

Distinguish among an element,a molecule,and a compound.

Accepted Answer

An element, a molecule, and a compound a

Exam 2: Chemistry of Life

The bonds that join amino acids together to form a protein are called peptide bonds.

Match the term with its definition or explanation. -The most important inorganic compound in the body

This element is not one of the elements that make up 96% of the body.

Which of the following is a disaccharide?

A solution with a pH of 6

An acid

Which of the following is a structural protein?

Which of the following has uracil as one of its nucleotides?

When the body removes CO₂ by way of the respiratory system

Match the name of the element with the correct symbol. -K

In a dehydration synthesis reaction:

When a neutralization reaction occurs between a strong acid and base,one of the end products is water.

Aqueous solutions have water as the solvent.

Glycogen and starch are both polysaccharides.

Electrons move in an elliptical orbit rather than a circular orbit around the nucleus.

Which of the following is a starting substance for making the hormones estrogen and testosterone?

The ions that are dissolved in water are called electrolytes.

A buffer is a chemical that helps prevent a sudden change in pH.

The primary source of energy used by the body is a carbohydrate.

Distinguish among an element,a molecule,and a compound.

Introduction to the Body

Cells

Tissues

Organ Systems

Skin and Membranes

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Reproductive Systems

Growth and Development

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