Question 1

ATP__________ endergonic and exergonic reactions.

Accepted Answer

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

Question 2

Chemical reactions in which larger molecules are broken down into smaller ones are called catabolic reactions.

Accepted Answer

A) True 
 B)False

Question 3

In the following reaction,what is(are) the product(s) ? CO2 + H2O ---> H2CO3

Accepted Answer

A)   H2CO3
B)   CO2 and H2O
C)   CO2 and H2CO3
D)   H2O and H2CO3E) B) and C)
F) A) and C)

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

Which of the following equations depicts an exchange reaction?

Accepted Answer

A)   AB → A + B
B)   A + B → AB
C)   AB + CD → AC + BD
D)   AB → A- + B+
E)   A + B → AB → C + DF) B) and C)
G) A) and E) C

Question 7

An enzyme is substrate-specific because of the shape of its __________.

Accepted Answer

A)   active site
B)   receptor
C)   secondary structure
D)   terminal amino acid
E)   alpha chainF) C) and D)
G) A) and B)

Question 8

Potassium,sodium,and chlorine are trace elements.

Accepted Answer

A) True 
 B)False

Question 9

Blood contains NaCl,protein,and cells.The NaCl 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 B)
G) A) and C)

Question 10

The bonding properties of an atom are determined by its __________.

Accepted Answer

A)   electrons
B)   protons
C)   positrons
D)   neutrons
E)   photonsF) C) and D)
G) A) and E)

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

The breakdown of starch by digestive enzymes into glucose molecules is a(n) __________ reaction.

Accepted Answer

A)   synthesis
B)   decomposition
C)   exchange
D)   anabolic
E)   reductionF) A) and E)
G) A) and D)

Question 13

Proteins are __________ built from __________ different amino acids.

Accepted Answer

A)   monomers;10
B)   molecules;10
C)   polymers;20
D)   macromolecules;40
E)   peptides:25F) C) and D)
G) B) and D)

Question 14

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) A) and E)
G) B) and D)

Question 15

Metabolism is the sum of __________ and __________.

Accepted Answer

A)   inhalation;exhalation
B)   growth;differentiation
C)   anabolism;catabolism
D)   positive;negative feedback
E)   responsiveness;movementF) A) and C)
G) A) and D)

Question 16

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

Accepted Answer

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

Question 17

Which of the following is not an organic compound?

Accepted Answer

A)   C16H18N3ClS
B)   Na2HPO3(H2O) 5
C)   CH4
D)   C3H7O2NE) A) and B)
F) B) and C)

Question 18

When jumping into water you notice resistance.This resistance is caused by water's __________.

Accepted Answer

A)   adhesiveness
B)   cohesiveness
C)   hydrophobic tension
D)   hydrophilic tension
E)   osmotic equilibriumF) B) and E)
G) C) and D)

Question 19

A solution with pH 4 has __________ the H+ concentration of a solution with pH 8.

Accepted Answer

A)   ½
B)   2 times
C)   4 times
D)   10,000 times
E)   1/10,000F) A) and D)
G) C) and E) D

Question 20

Oxygen has an atomic number of eight.When two oxygen atoms come together,they form a(n) __________ bond.

Accepted Answer

A)   hydrogen
B)   nonpolar covalent
C)   polar covalent
D)   ionic
E)   Van der WaalsF) A) and B)
G) A) and C)

Exam 2: The Chemistry of Life

ATP__________ endergonic and exergonic reactions.

Correct AnswerverifiedD

Chemical reactions in which larger molecules are broken down into smaller ones are called catabolic reactions.

Correct AnswerverifiedShow Answer

In the following reaction,what is(are) the product(s) ? CO2 + H2O ---> H2CO3

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following equations depicts an exchange reaction?

Correct AnswerverifiedC

An enzyme is substrate-specific because of the shape of its __________.

Correct AnswerverifiedShow Answer

Potassium,sodium,and chlorine are trace elements.

Correct AnswerverifiedShow Answer

Blood contains NaCl,protein,and cells.The NaCl is in a(n) __________,the protein is in a(n) __________,and the cells are in a __________.

Correct AnswerverifiedShow Answer

The bonding properties of an atom are determined by its __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The breakdown of starch by digestive enzymes into glucose molecules is a(n) __________ reaction.

Correct AnswerverifiedShow Answer

Proteins are __________ built from __________ different amino acids.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Metabolism is the sum of __________ and __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is not an organic compound?

Correct AnswerverifiedShow Answer

When jumping into water you notice resistance.This resistance is caused by water's __________.

Correct AnswerverifiedShow Answer

A solution with pH 4 has __________ the H+ concentration of a solution with pH 8.

Correct AnswerverifiedD

Oxygen has an atomic number of eight.When two oxygen atoms come together,they form a(n) __________ bond.

Correct AnswerverifiedShow Answer

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D

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In the following reaction,what is(are) the product(s) ? CO₂ + H₂O ---> H₂CO₃

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C

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Blood contains NaCl,protein,and cells.The NaCl is in a(n) ,the protein is in a(n) ,and the cells are in a __.

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Proteins are built from different amino acids.

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Metabolism is the sum of and .

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

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A solution with pH 4 has __________ the H⁺ concentration of a solution with pH 8.

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D

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