Question 1

Our body is capable of converting starch into glycogen.

Accepted Answer

A) True 
 B)False

Question 2

Fats and oils function better than other biological molecules as energy-storage molecules because of the carbon they contain.

Accepted Answer

A) True 
 B)False

Question 3

The sex hormones belong to which category of lipids?

Accepted Answer

A)   steroids
B)   fats
C)   oils
D)   triglycerides
E)   phospholipidsF) B) and E)
G) A) and B)

Question 4

A combination of two or more atoms of the same type is called

Accepted Answer

A)   an atomic unit.
B)   a molecule.
C)   a compound.
D)   an isotope.
E)   an ion.F) D) and E)
G) B) and E)

Question 5

Which grouping of elements is found in carbohydrates?

Accepted Answer

A)   C - H - O
B)   C - H - P
C)   H - O - Cl
D)   N - S - O
E)   Ca - H - OF) A) and D)
G) A) and B)

Question 6

List the properties of water.

Accepted Answer

1. Water has a high heat capac...

Question 7

Radiation can produce both positive and negative effects for humans.

Accepted Answer

A) True 
 B)False

Question 8

The membranes of cells are composed of

Accepted Answer

A)   phospholipids.
B)   fats.
C)   oils.
D)   steroids.
E)   triglycerides.F) B) and C)
G) A) and B)

Question 9

When two amino acids combine via a dehydration reaction,

Accepted Answer

A)   a peptide bond is formed.
B)   the R groups are lost.
C)   water is added to begin the reaction.
D)   the carboxyl group of each join together.
E)   the amino group of each join together.F) B) and E)
G) A) and C)

Question 10

Which of the following characteristics of water is most responsible for the sinking of the Titanic?

Accepted Answer

A)   Water is liquid at room temperature.
B)   Water has a high heat of vaporization.
C)   The temperature of liquid water rises and falls slowly.
D)   Frozen water is less dense than liquid water.
E)   Water molecules are cohesive.F) D) and E)
G) A) and D)

Question 11

The atomic number of an atom is determined by the number of

Accepted Answer

A)   protons.
B)   neutrons.
C)   electrons.
D)   protons and neutrons.
E)   protons and electrons.F) B) and C)
G) C) and E)

Question 12

A species has 29% of its DNA composed of the nucleotide containing guanine (G) . What percent does the nitrogen base thymine (T)  equal?

Accepted Answer

A)   58%
B)   42%
C)   21%
D)   67%
E)   29%F) A) and B)
G) A) and E)

Question 13

Which of the following is not a monosaccharide?

Accepted Answer

A)   glucose
B)   fructose
C)   galactose
D)   maltose
E)   None of these are monosaccharides.F) A) and D)
G) B) and E)

Question 14

Isotopes of an element differ due to the number of

Accepted Answer

A)   protons.
B)   neutrons.
C)   electrons.
D)   both protons and electrons.
E)   neutrinos.F) All of the above
G) B) and E)

Question 15

Water makes up 60-70% of total body weight.

Accepted Answer

A) True 
 B)False

Question 16

If a person is looking to eat a breakfast that will help supply them with energy for the entire course of the day, which of the following foods would they want to include?

Accepted Answer

A)   pancakes with maple syrup
B)   bacon, eggs, and toast
C)   cup of coffee and a donut
D)   bowl of grapes and a glass of milk
E)   All of these choices would provide the same potential for all day energy.F) B) and D)
G) A) and B)

Question 17

The smallest unit of an element that still retains the chemical and physical properties of that element is called

Accepted Answer

A)   an isotope.
B)   a nucleus.
C)   an atom.
D)   a molecular bond.
E)   a neutrino.F) C) and E)
G) A) and C)

Question 18

In an acidic solution

Accepted Answer

A)   the number of H+ is less than the number of OH-.
B)   the number of H+ is greater than the number of OH-.
C)   the number of H+ is equal to the number of OH-.
D)   the number of H+ is 3 times less than the number of OH-.
E)   the number of H+ is 10 times less than the number of OH-.F) A) and B)
G) A) and C)

Question 19

Which of the following is not present in a nucleotide?

Accepted Answer

A)   phosphate
B)   nitrogenous base
C)   5 ring sugar
D)   an R group
E)   a pentoseF) B) and D)
G) D) and E)

Question 20

Which type of bond is responsible for holding two water molecules together creating the properties of water?

Accepted Answer

A)   hydrogen
B)   covalent
C)   ionic
D)   polar
E)   double covalentF) C) and D)
G) D) and E)

Exam 2: Chemistry of Life

Which of the following is not present in a nucleotide?

Correct AnswerverifiedShow Answer

The membranes of cells are composed of

Correct AnswerverifiedShow Answer

When two amino acids combine via a dehydration reaction,

Correct AnswerverifiedShow Answer

A species has 29% of its DNA composed of the nucleotide containing guanine (G) . What percent does the nitrogen base thymine (T) equal?

Correct AnswerverifiedShow Answer

The atomic number of an atom is determined by the number of

Correct AnswerverifiedShow Answer

The smallest unit of an element that still retains the chemical and physical properties of that element is called

Correct AnswerverifiedShow Answer

List the properties of water.

Correct Answerverified1. Water has a high heat capac...View AnswerShow Answer

A combination of two or more atoms of the same type is called

Correct AnswerverifiedShow Answer

Which grouping of elements is found in carbohydrates?

Correct AnswerverifiedShow Answer

Fats and oils function better than other biological molecules as energy-storage molecules because of the carbon they contain.

Correct AnswerverifiedShow Answer

The sex hormones belong to which category of lipids?

Correct AnswerverifiedShow Answer

Which type of bond is responsible for holding two water molecules together creating the properties of water?

Correct AnswerverifiedShow Answer

Water makes up 60-70% of total body weight.

Correct AnswerverifiedShow Answer

If a person is looking to eat a breakfast that will help supply them with energy for the entire course of the day, which of the following foods would they want to include?

Correct AnswerverifiedShow Answer

Which of the following is not a monosaccharide?

Correct AnswerverifiedShow Answer

Isotopes of an element differ due to the number of

Correct AnswerverifiedShow Answer

Which of the following characteristics of water is most responsible for the sinking of the Titanic?

Correct AnswerverifiedShow Answer

In an acidic solution

Correct AnswerverifiedShow Answer

Our body is capable of converting starch into glycogen.

Correct AnswerverifiedShow Answer

Radiation can produce both positive and negative effects for humans.

Correct AnswerverifiedShow Answer

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1. Water has a high heat capac...
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