Question 1

The monomer unit of a protein is

Accepted Answer

A)  fatty acids. 
B)  amino acids. 
C)  monosaccharides. 
D)  polysaccharides. 
E)  nucleic acids. 
A)  fatty acids. 
B)  amino acids. 
C)  monosaccharides. 
D)  polysaccharides. 
E)  nucleic acids.

Question 2

What is the symbol for sodium?

Accepted Answer

A)  Na 
B)  S 
C)  So 
D)  N 
E)  Dm 
A)  Na 
B)  S 
C)  So 
D)  N 
E)  Dm

Question 3

Sugars with three to seven carbon atoms are called

Accepted Answer

A)  monosaccharides. 
B)  disaccharides. 
C)  trisaccharides. 
D)  polysaccharides. 
E)  steroids. 
A)  monosaccharides. 
B)  disaccharides. 
C)  trisaccharides. 
D)  polysaccharides. 
E)  steroids.

Question 4

When an ATP molecule is used to supply energy, which of the following occurs?

Accepted Answer

A)  a phosphate bond is added 
B)  a phosphate bond is broken 
C)  oxygen is removed 
D)  oxygen is added 
E)  an adenine is added 
A)  a phosphate bond is added 
B)  a phosphate bond is broken 
C)  oxygen is removed 
D)  oxygen is added 
E)  an adenine is added

Question 5

How are fats, phospholipids, and steroids alike?

Accepted Answer

A)  They are all solid at room temperature. 
B)  They each contain a polar phosphate group. 
C)  They each contain only 1 fatty acid. 
D)  They do not dissolve in water. 
E)  They all contain at least one carbon ring. 
A)  They are all solid at room temperature. 
B)  They each contain a polar phosphate group. 
C)  They each contain only 1 fatty acid. 
D)  They do not dissolve in water. 
E)  They all contain at least one carbon ring.

Question 6

Be has an atomic number of 4 and an atomic mass of 9. How many protons does it have?

Accepted Answer

A)  4 
B)  5 
C)  9 
D)  13 
E)  7 
A)  4 
B)  5 
C)  9 
D)  13 
E)  7

Question 7

What substance is used in medicine to produce various images of organs and tissues?

Accepted Answer

A)  A mixture 
B)  A tracer 
C)  An emulsion 
D)  A colloid 
E)  A sensor 
A)  A mixture 
B)  A tracer 
C)  An emulsion 
D)  A colloid 
E)  A sensor

Question 8

List the function of proteins that are formed from a combination of amino acids.

Accepted Answer

Functions of proteins include:
1. suppor

Question 9

A solution containing 0.00001 moles of H+ has a pH of

Accepted Answer

A)  3 
B)  5 
C)  7 
D)  9 
E)  11 
A)  3 
B)  5 
C)  7 
D)  9 
E)  11

Question 10

CaCl2 is a salt that forms as the result of what type of bond?

Accepted Answer

A)  covalent 
B)  hydrogen 
C)  polar 
D)  non-polar 
E)  ionic 
A)  covalent 
B)  hydrogen 
C)  polar 
D)  non-polar 
E)  ionic

Question 11

Why is He positioned above Ne in the periodic table?

Accepted Answer

A)  They both have the same atomic mass. 
B)  They both have the same number of electrons in their outermost orbital. 
C)  They both have a full outermost orbital. 
D)  They both have the same atomic number. 
E)  They both have the same number of protons in their nuclei. 
A)  They both have the same atomic mass. 
B)  They both have the same number of electrons in their outermost orbital. 
C)  They both have a full outermost orbital. 
D)  They both have the same atomic number. 
E)  They both have the same number of protons in their nuclei.

Question 12

A fat contains how many fatty acids?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 13

How many elements occur naturally?

Accepted Answer

A)  112 
B)  92 
C)  64 
D)  32 
E)  6 
A)  112 
B)  92 
C)  64 
D)  32 
E)  6

The monomer unit of a protein is

What is the symbol for sodium?

Sugars with three to seven carbon atoms are called

When an ATP molecule is used to supply energy, which of the following occurs?

How are fats, phospholipids, and steroids alike?

Be has an atomic number of 4 and an atomic mass of 9. How many protons does it have?

What substance is used in medicine to produce various images of organs and tissues?

List the function of proteins that are formed from a combination of amino acids.

A solution containing 0.00001 moles of H⁺ has a pH of

CaCl₂ is a salt that forms as the result of what type of bond?

Why is He positioned above Ne in the periodic table?

A fat contains how many fatty acids?

How many elements occur naturally?

Exploring Life and Science

Cell Structure and Function

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

The Lymphatic and Immune Systems

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Human Development and Aging

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

DNA Biology and Technology

Human Evolution

Global Ecology and Human Interferences

Human Population, Planetary Resources, and Conservation

Infectious Diseases Supplement

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Exam 2: Chemistry of Life

The monomer unit of a protein is

What is the symbol for sodium?

Sugars with three to seven carbon atoms are called

When an ATP molecule is used to supply energy, which of the following occurs?

How are fats, phospholipids, and steroids alike?

Be has an atomic number of 4 and an atomic mass of 9. How many protons does it have?

What substance is used in medicine to produce various images of organs and tissues?

List the function of proteins that are formed from a combination of amino acids.

A solution containing 0.00001 moles of H+ has a pH of

CaCl2 is a salt that forms as the result of what type of bond?

Why is He positioned above Ne in the periodic table?

A fat contains how many fatty acids?

How many elements occur naturally?

Exploring Life and Science

Cell Structure and Function

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

The Lymphatic and Immune Systems

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Human Development and Aging

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

DNA Biology and Technology

Human Evolution

Global Ecology and Human Interferences

Human Population, Planetary Resources, and Conservation

Infectious Diseases Supplement

Filters

A solution containing 0.00001 moles of H⁺ has a pH of

CaCl₂ is a salt that forms as the result of what type of bond?