Question 1

Match the term with its definition or explanation.
-A subatomic particle with a negative charge

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 2

Both DNA and RNA have a double helix structure.

Accepted Answer

A) True 
 B)False

Question 3

Match the term with its definition or explanation.
-The sum of the protons and neutrons in an atom

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 4

An atom is said to be chemically stable when its outer energy level is full.

Accepted Answer

A) True 
 B)False

Question 5

Differentiate between DNA and RNA in terms of structure and function.

Accepted Answer

DNA (deoxyribonucleic acid) and RNA (rib

Question 6

Match the term with its definition or explanation.
-A pure substance made up of only one kind of atom

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 7

Which of the following contributes to the atom's atomic number?

Accepted Answer

A)  Proton 
B)  Neutron 
C)  Electron 
D)  Both proton and neutron 
A)  Proton 
B)  Neutron 
C)  Electron 
D)  Both proton and neutron

Question 8

All compounds are molecules,but not all molecules are compounds.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following carries no electrical charge?

Accepted Answer

A)  Proton 
B)  Neutron 
C)  Electron 
D)  Both proton and neutron 
A)  Proton 
B)  Neutron 
C)  Electron 
D)  Both proton and neutron

Question 10

The first energy level of an atom is closest to the nucleus and is the lowest energy level.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is a protein whose function is explained by the lock and key model?

Accepted Answer

A)  Collagen 
B)  Glycogen 
C)  Enzymes 
D)  None of the above 
A)  Collagen 
B)  Glycogen 
C)  Enzymes 
D)  None of the above

Question 12

DNA is the "master code" for making proteins.

Accepted Answer

A) True 
 B)False

Question 13

This subatomic particle is found in orbitals around the nucleus of the atom.

Accepted Answer

A)  Electron 
B)  Neutron 
C)  Proton 
D)  Both b and c above 
A)  Electron 
B)  Neutron 
C)  Proton 
D)  Both b and c above

Question 14

Covalent bonds do not usually dissociate in water.

Accepted Answer

A) True 
 B)False

Question 15

Phospholipids and triglycerides both contain fatty acids.

Accepted Answer

A) True 
 B)False

Question 16

This modified nucleotide plays an important role in energy-transfer in the body

Accepted Answer

A)  adenosine triphosphate 
B)  enzymes 
C)  mRNA 
D)  glycoproteins 
A)  adenosine triphosphate 
B)  enzymes 
C)  mRNA 
D)  glycoproteins

Question 17

The symbol for a sodium atom that has lost one electron would be Na⁺.

Accepted Answer

A) True 
 B)False

Question 18

Match the term with the definition or explanation.
-This nucleic acid has thymine as one of its nitrogen bases.

Accepted Answer

A) Glucose 
B) Enzyme 
C) Triglyceride 
D) Glycogen 
E) Cholesterol
F)Adenosine triphosphate
G)RNA
H)Phospholipids
I)Collagen
J)DNA 
A) Glucose 
B) Enzyme 
C) Triglyceride 
D) Glycogen 
E) Cholesterol
F)Adenosine triphosphate
G)RNA
H)Phospholipids
I)Collagen
J)DNA

Question 19

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

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 20

A solution with a pH of 11

Accepted Answer

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

Exam 2: Chemistry of Life

Match the term with its definition or explanation. -A subatomic particle with a negative charge

Both DNA and RNA have a double helix structure.

Match the term with its definition or explanation. -The sum of the protons and neutrons in an atom

An atom is said to be chemically stable when its outer energy level is full.

Differentiate between DNA and RNA in terms of structure and function.

Match the term with its definition or explanation. -A pure substance made up of only one kind of atom

Which of the following contributes to the atom's atomic number?

All compounds are molecules,but not all molecules are compounds.

Which of the following carries no electrical charge?

The first energy level of an atom is closest to the nucleus and is the lowest energy level.

Which of the following is a protein whose function is explained by the lock and key model?

DNA is the "master code" for making proteins.

This subatomic particle is found in orbitals around the nucleus of the atom.

Covalent bonds do not usually dissociate in water.

Phospholipids and triglycerides both contain fatty acids.

This modified nucleotide plays an important role in energy-transfer in the body

The symbol for a sodium atom that has lost one electron would be Na⁺.

Match the term with the definition or explanation. -This nucleic acid has thymine as one of its nitrogen bases.

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

A solution with a pH of 11

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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