Question 1

The type of organic molecule that can replicate is a

Accepted Answer

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

Question 2

_____________ are building blocks of nucleic acids.

Accepted Answer

The answer of _____________ are building blocks of nucleic acids....

Question 3

A triglyceride consists of

Accepted Answer

A)  3 glycerols and 1 fatty acid. 
B)  3 glucose molecules. 
C)  3 fatty acids and 3 phosphate groups. 
D)  3 fatty acids and 1 glycerol. 
A)  3 glycerols and 1 fatty acid. 
B)  3 glucose molecules. 
C)  3 fatty acids and 3 phosphate groups. 
D)  3 fatty acids and 1 glycerol.

Question 4

A biomarker test for cancer should ideally be

Accepted Answer

A)  inexpensive. 
B)  easy to perform. 
C)  specific. 
D)  all of the above. 
A)  inexpensive. 
B)  easy to perform. 
C)  specific. 
D)  all of the above.

Question 5

An organic compound always contains

Accepted Answer

A)  carbon and hydrogen. 
B)  oxygen and nitrogen. 
C)  carbon and oxygen. 
D)  nitrogen and hydrogen. 
A)  carbon and hydrogen. 
B)  oxygen and nitrogen. 
C)  carbon and oxygen. 
D)  nitrogen and hydrogen.

Question 6

A phospholipid differs structurally from a triglyceride in that it has three phosphate groups attached to the glycerol molecule rather than three fatty acid chains.

Accepted Answer

A) True 
 B)False

Question 7

A water solution that contains equal numbers of hydrogen ions and hydroxide ions is

Accepted Answer

A)  acidic. 
B)  basic. 
C)  alkaline. 
D)  neutral. 
A)  acidic. 
B)  basic. 
C)  alkaline. 
D)  neutral.

Question 8

The midpoint of the pH scale is pH __.

Accepted Answer

The answer of The midpoint of the pH scale is...

Question 9

The atoms of different elements have

Accepted Answer

A)  the same atomic number and same atomic weight. 
B)  the same atomic number but different atomic weights. 
C)  different atomic numbers. 
D)  different atomic numbers but the same number of electrons. 
A)  the same atomic number and same atomic weight. 
B)  the same atomic number but different atomic weights. 
C)  different atomic numbers. 
D)  different atomic numbers but the same number of electrons.

Question 10

Cholesterol, a type of lipid, is composed of 3 fatty acid chains attached to glycerol.

Accepted Answer

A) True 
 B)False

Question 11

Chemistry is important to the study of physiology because

Accepted Answer

A)  the foods that we eat are chemicals. 
B)  body functions depend on cellular functions that reflect chemical changes. 
C)  chemical reactions enable our bodies to extract energy from nutrients. 
D)  all of the above. 
A)  the foods that we eat are chemicals. 
B)  body functions depend on cellular functions that reflect chemical changes. 
C)  chemical reactions enable our bodies to extract energy from nutrients. 
D)  all of the above.

Question 12

When atoms form chemical bonds, the subatomic particles that directly interact are the ________.

Accepted Answer

The answer of When atoms form chemical bonds, the subatomic...

Question 13

DNA and RNA differ in that

Accepted Answer

A)  RNA has deoxyribose and DNA has ribose. 
B)  RNA is double-stranded and DNA is single-stranded. 
C)  DNA holds genetic information and RNA uses that information to synthesize protein. 
D)  RNA is found only in the nucleus and DNA is found only in the cytoplasm. 
A)  RNA has deoxyribose and DNA has ribose. 
B)  RNA is double-stranded and DNA is single-stranded. 
C)  DNA holds genetic information and RNA uses that information to synthesize protein. 
D)  RNA is found only in the nucleus and DNA is found only in the cytoplasm.

Question 14

When cations and anions meet, they

Accepted Answer

A)  repel. 
B)  form ionic bonds. 
C)  form covalent bonds. 
D)  form individual molecules. 
A)  repel. 
B)  form ionic bonds. 
C)  form covalent bonds. 
D)  form individual molecules.

Question 15

Glycogen is stored in the liver and ______.

Accepted Answer

A)  spleen 
B)  skeletal muscles 
C)  pancreas 
D)  heart 
A)  spleen 
B)  skeletal muscles 
C)  pancreas 
D)  heart

Question 16

An example of a biomarker is

Accepted Answer

A)  cholesterol. 
B)  any DNA sequence. 
C)  sodium chloride. 
D)  hydrogen. 
A)  cholesterol. 
B)  any DNA sequence. 
C)  sodium chloride. 
D)  hydrogen.

Question 17

Which of the following is the most abundant inorganic substance in the body?

Accepted Answer

A)  Carbohydrate 
B)  Water 
C)  Lipid 
D)  Protein 
A)  Carbohydrate 
B)  Water 
C)  Lipid 
D)  Protein

Question 18

Conformation is

Accepted Answer

A)  the three-dimensional shape of a molecule, such as a protein. 
B)  the energy held in the bonds of an organic molecule, such as a protein. 
C)  the ability of DNA to copy itself. 
D)  the amino acid sequence (primary structure) of a protein. 
A)  the three-dimensional shape of a molecule, such as a protein. 
B)  the energy held in the bonds of an organic molecule, such as a protein. 
C)  the ability of DNA to copy itself. 
D)  the amino acid sequence (primary structure) of a protein.

Question 19

Which of the following isotopes has the longest half-life?

Accepted Answer

A)  Iodine-131 
B)  Iron-59 
C)  Phosphorus-32 
D)  Cobalt-60 
A)  Iodine-131 
B)  Iron-59 
C)  Phosphorus-32 
D)  Cobalt-60

Question 20

The atoms of the isotopes of a particular element vary in the number of

Accepted Answer

A)  electrons. 
B)  protons. 
C)  neutrons. 
D)  nuclei. 
A)  electrons. 
B)  protons. 
C)  neutrons. 
D)  nuclei.

Exam 2: Chemical Basis of Life

The type of organic molecule that can replicate is a

_____________ are building blocks of nucleic acids.

A triglyceride consists of

A biomarker test for cancer should ideally be

An organic compound always contains

A phospholipid differs structurally from a triglyceride in that it has three phosphate groups attached to the glycerol molecule rather than three fatty acid chains.

A water solution that contains equal numbers of hydrogen ions and hydroxide ions is

The midpoint of the pH scale is pH __.

The atoms of different elements have

Cholesterol, a type of lipid, is composed of 3 fatty acid chains attached to glycerol.

Chemistry is important to the study of physiology because

When atoms form chemical bonds, the subatomic particles that directly interact are the ________.

DNA and RNA differ in that

When cations and anions meet, they

Glycogen is stored in the liver and ______.

An example of a biomarker is

Which of the following is the most abundant inorganic substance in the body?

Conformation is

Which of the following isotopes has the longest half-life?

The atoms of the isotopes of a particular element vary in the number of

Introduction to Human Anatomy and Physiology

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Division of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

Filters