Question 1

A molecule of glucose has more saccharide units than a molecule of lactose.

Accepted Answer

A) True 
 B)False

Question 2

The second energy level of an atom

Accepted Answer

A)  has four orbitals 
B)  can hold eight electrons 
C)  is a lower energy level then the first energy level 
D)  both a and b above 
A)  has four orbitals 
B)  can hold eight electrons 
C)  is a lower energy level then the first energy level 
D)  both a and b above

Question 3

High levels of LDL are associated with the development of atherosclerosis.

Accepted Answer

A) True 
 B)False

Question 4

Match the term with its definition or explanation.
-A bond formed when electrons are shared

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 5

An isotope is an atom with

Accepted Answer

A)  more protons than electrons 
B)  more electrons than protons 
C)  the same number of protons but different number of neutrons 
D)  either a or b above 
A)  more protons than electrons 
B)  more electrons than protons 
C)  the same number of protons but different number of neutrons 
D)  either a or b above

Question 6

Which of the following is an example of a structural protein?

Accepted Answer

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

Question 7

If an atom had 20 protons and 18 electrons,it would

Accepted Answer

A)  have a negative 2 charge 
B)  have a plus 2 charge 
C)  be attracted to a positively charged ion 
D)  both a and c above 
A)  have a negative 2 charge 
B)  have a plus 2 charge 
C)  be attracted to a positively charged ion 
D)  both a and c above

Question 8

Acids produce an excess of H⁺ ions.

Accepted Answer

A) True 
 B)False

Question 9

In a hydrolysis reaction:

Accepted Answer

A)  water is a product 
B)  water is a reactant 
C)  water is broken down into hydrogen and oxygen 
D)  the product is larger than either reactant 
A)  water is a product 
B)  water is a reactant 
C)  water is broken down into hydrogen and oxygen 
D)  the product is larger than either reactant

Question 10

Compounds are

Accepted Answer

A)  pure substances 
B)  made up of only one type of atom 
C)  made up of two or more different types of atoms 
D)  both a and b above 
A)  pure substances 
B)  made up of only one type of atom 
C)  made up of two or more different types of atoms 
D)  both a and b above

Question 11

LDL is sometimes called the "bad" cholesterol.

Accepted Answer

A) True 
 B)False

Question 12

Describe the two different types of lipoproteins in the blood.Explain their possible impact on health.

Accepted Answer

Lipoproteins are molecules that transpor

Question 13

The formula for oxygen gas is O₂; this means it is

Accepted Answer

A)  made up of two atoms of oxygen 
B)  a molecule 
C)  a compound 
D)  both a and b above 
A)  made up of two atoms of oxygen 
B)  a molecule 
C)  a compound 
D)  both a and b above

Question 14

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

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 15

An atom with 15 protons would have an atomic number of 15.

Accepted Answer

A) True 
 B)False

Question 16

Elements are pure substances.

Accepted Answer

A) True 
 B)False

Question 17

An atom with one more electron than proton would have a plus one charge.

Accepted Answer

A) True 
 B)False

Question 18

Briefly describe the structure of the atom.

Accepted Answer

The atom is the fundamental unit of matt

Question 19

This subatomic particle does not contribute to the mass of an atom

Accepted Answer

A)  proton 
B)  neutron 
C)  electron 
D)  all of the above particles contribute to the mass of an atom 
A)  proton 
B)  neutron 
C)  electron 
D)  all of the above particles contribute to the mass of an atom

Question 20

Which of the following is a monosaccharide?

Accepted Answer

A)  Glucose 
B)  Sucrose 
C)  Lactose 
D)  Glucagon 
A)  Glucose 
B)  Sucrose 
C)  Lactose 
D)  Glucagon

Exam 2: Chemistry of Life

A molecule of glucose has more saccharide units than a molecule of lactose.

The second energy level of an atom

High levels of LDL are associated with the development of atherosclerosis.

Match the term with its definition or explanation. -A bond formed when electrons are shared

An isotope is an atom with

Which of the following is an example of a structural protein?

If an atom had 20 protons and 18 electrons,it would

Acids produce an excess of H⁺ ions.

In a hydrolysis reaction:

Compounds are

LDL is sometimes called the "bad" cholesterol.

Describe the two different types of lipoproteins in the blood.Explain their possible impact on health.

The formula for oxygen gas is O₂; this means it is

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

An atom with 15 protons would have an atomic number of 15.

Elements are pure substances.

An atom with one more electron than proton would have a plus one charge.

Briefly describe the structure of the atom.

This subatomic particle does not contribute to the mass of an atom

Which of the following is a monosaccharide?

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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