Question 1

Consider a mixture of blood, which contains sodium chloride, protein, and cells or formed elements. The sodium chloride is in a(n)  , the protein is in a(n)  , and the cells are in a
)

Accepted Answer

A)  emulsion; solution; suspension
B)  solvent; emulsion; colloid
C)  colloid; suspension; solution
D)  suspension; colloid; solution
E)  solution; colloid; suspensionF) A) and D)
G) A) and C)

Question 2

Any chemical reaction that removes electrons from an atom is called

Accepted Answer

A)  reduction.
B)  condensation.
C)  hydrolysis.
D)  anabolism.
E)  oxidation.F) A) and C)
G) All of the above

Question 3

Consider oxygen, which has an atomic number of 8 and an atomic mass of 16.How many valence electrons does it have?

Accepted Answer

A)  2
B)  4
C)  6
D)  8
E)  16F) A) and B)
G) A) and C)

Question 4

Which of these is a cation?

Accepted Answer

A)  O₂
B)  K
C)  Na
D)  Ca₂+
E)  Cl-F) A) and E)
G) A) and D)

Question 5

When ATP breaks down to ADP, potential energy stored in bonds is released.This energy stored in bonds is energy.

Accepted Answer

A)  electromagnetic
B)  electrical
C)  chemical
D)  heat
E)  kineticF) A) and D)
G) A) and C)

Question 6

ATP endergonic and exergonic reactions.

Accepted Answer

A)  opposes
B)  decomposes
C)  reduces
D)  links
E)  dehydratesF) B) and D)
G) C) and D)

Question 7

The opposite of a dehydration synthesis is a hydrolysis.

Accepted Answer

A) True 
 B)False

Question 8

A(n)  is a group of atoms that determines many of the properties of an organic molecule.

Accepted Answer

A)  carboxyl group
B)  functional group
C)  hydroxyl group
D)  amino group
E)  phosphate groupF) B) and D)
G) B) and C)

Question 9

are major components of cell membranes, and are said to be .

Accepted Answer

A)  Triglycerides; hydrophobic
B)  Steroids; hydrophilic
C)  Bile acids; fat-soluble
D)  Eicosanoids; water-soluble
E)  Phospholipids; amphiphilicF) All of the above
G) D) and E)

Question 10

Which of the following words includes all of the other terms?

Accepted Answer

A)  catabolism
B)  anabolism
C)  metabolism
D)  oxidative reactions
E)  reductive reactionsF) None of the above
G) A) and E)

Question 11

Which one of the following would not increase the rate of a reaction?

Accepted Answer

A)  reactants being more concentrated
B)  rise in temperature
C)  presence of a catalyst
D)  presence of an enzyme
E)  decrease in reactant concentrationsF) C) and D)
G) D) and E)

Question 12

Unsaturated fatty acids have as much hydrogen as they can carry.

Accepted Answer

A) True 
 B)False

Question 13

Which of these is (are)  always hydrophobic?

Accepted Answer

A)  glucose
B)  cholesterol
C)  amino acids
D)  proteins
E)  disaccharidesF) A) and E)
G) B) and C)

Question 14

A solution is a mixture composed of two or more substances that are physically blended but not
chemically combined.

Accepted Answer

A) True 
 B)False

Question 15

Table sugar is a disaccharide called and is made up of the monomer(s)  .

Accepted Answer

A)  maltose; glucose
B)  sucrose; glucose and fructose
C)  lactose; glucose and galactose
D)  glycogen; glucose
E)  glucose; galactose and fructoseF) B) and C)
G) B) and E)

Question 16

ATP is the body's most important form of long-term energy storage.

Accepted Answer

A) True 
 B)False

Question 17

The high heat capacity of water makes it a very ineffective coolant.

Accepted Answer

A) True 
 B)False

Question 18

Glucose is broken down in most of your cells to form carbon dioxide, oxygen, and the energy currency of the cell called ATP.What type of chemical reaction is this?

Accepted Answer

A)  anabolic or endergonic
B)  catabolic or exergonic
C)  anabolic or exergonic
D)  catabolic or endergonic
E)  anabolic or exothermicF) C) and E)
G) None of the above

Question 19

The most abundant element in the human body, by weight, is

Accepted Answer

A)  nitrogen.
B)  hydrogen.
C)  carbon.
D)  oxygen.
E)  calcium.F) A) and B)
G) B) and E)

Question 20

A dipeptide is a molecule with two peptide bonds.

Accepted Answer

A) True 
 B)False

Exam 2: The Chemistry of Life

Glucose is broken down in most of your cells to form carbon dioxide, oxygen, and the energy currency of the cell called ATP.What type of chemical reaction is this?

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A(n) is a group of atoms that determines many of the properties of an organic molecule.

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ATP endergonic and exergonic reactions.

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A dipeptide is a molecule with two peptide bonds.

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Which of the following words includes all of the other terms?

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Any chemical reaction that removes electrons from an atom is called

Correct AnswerverifiedShow Answer

Table sugar is a disaccharide called and is made up of the monomer(s) .

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Unsaturated fatty acids have as much hydrogen as they can carry.

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The high heat capacity of water makes it a very ineffective coolant.

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The most abundant element in the human body, by weight, is

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are major components of cell membranes, and are said to be .

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Which of these is a cation?

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When ATP breaks down to ADP, potential energy stored in bonds is released.This energy stored in bonds is energy.

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A solution is a mixture composed of two or more substances that are physically blended but not chemically combined.

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The opposite of a dehydration synthesis is a hydrolysis.

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Consider a mixture of blood, which contains sodium chloride, protein, and cells or formed elements. The sodium chloride is in a(n) , the protein is in a(n) , and the cells are in a )

Correct AnswerverifiedShow Answer

Consider oxygen, which has an atomic number of 8 and an atomic mass of 16.How many valence electrons does it have?

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Which one of the following would not increase the rate of a reaction?

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ATP is the body's most important form of long-term energy storage.

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Which of these is (are) always hydrophobic?

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