BIOL 1201: Exam 2 QUESTIONS &
ANSWERS 100% CORRECT!!
Chemical Reaction - ANSWERoccurs anytime when two or more atoms, ions, or
molecules collide in such a way that they produce a new substance
Which of these is exhibiting kinetic energy?
A. A rock on a mountain ledge
B. A space station orbiting Earth
C. A person sitting on a couch while watching TV
D. An archer with a flexed bow
E. The high-energy phosphate bonds of a molecule of ATP - ANSWERB. A space
station orbiting Earth
Kinetic energy is energy of motion.
What is the First Law of Thermodynamics? - ANSWEREnergy can neither be
created nor destroyed and can only be converted from one form of energy to
another.
"Conservation of energy" refers to the fact that _____.
A. no chemical reaction is 100 percent efficient.
B. if you conserve energy you will not be as tired.
C. the net amount of disorder is always increasing.
D. the entropy of the universe is always increasing.
E. energy cannot be created or destroyed but can be converted from one form to
another. - ANSWERE. energy cannot be created or destroyed but can be converted
from one form to another.
If the reactants have more energy than the products, then energy must be
___________ as the reaction goes forward. - ANSWERreleased
If the reactants have less energy that the products, then energy must be
___________ to the reaction to make it occur. - ANSWERadded
Chemical energy is a form of _____ energy.
A. entropic
B. potential
C. motion
D. kinetic
E. heat - ANSWERB. potential
Chemical energy is a form of stored energy.
,What is the Second Law of Thermodynamics? - ANSWERWhen converting from one
form of energy to another, the amount of useful energy decreases.
According the the Second Law of Thermodynamics, useful energy will be lost as
_________ during a chemical reaction. - ANSWERheat
When the products have less energy than the reactants, then __________ has been
released into the environment. - ANSWERheat
The following reaction
A --> B + C + heat
is a(n) _____ reaction.
A. endergonic
B. anabolic
C. exergonic
D. dehydration synthesis
E. exchange - ANSWERC. exergonic
Energy has been released.
In your body, what process converts the chemical energy found in glucose into the
chemical energy found in ATP?
A. potentiation
B. anabolism
C. cellular respiration
D. redox
E. digestion - ANSWERC. cellular respiration
This is the name given to the process by which the body converts food energy to
energy stored in ATP.
Which of these are by-products of cellular respiration?
A. ATP and carbon dioxide
B. Carbon dioxide and water
C. Glucose, carbon dioxide, and water
D. ATP, carbon dioxide, and water
E. Heat, carbon dioxide, and water - ANSWERE. Heat, carbon dioxide, and water
Describe a spontaneous reaction in terms of energy. - ANSWERRelease free energy
(exergonic)
Reactants have greater energy than the products
Energetically downhill
Energy is released
,A(n) _____ reaction occurs spontaneously.
A. kinetic
B. anabolic
C. chemical
D. exergonic
E. endergonic - ANSWERD. exergonic
In exergonic reactions, the products have less potential energy than the reactants.
Describe a non-spontaneous reaction in terms of energy. - ANSWERRequire free
energy (endergonic)
Reactants have less energy than the products
Energetically uphill
Energy is produced
Which of these reactions requires a net input of energy from its surroundings?
A. ATP --> ADP + P
B. Exergonic
C. Catabolic
D. Endergonic
E. Hydrolysis - ANSWERD. Endergonic
The products of endergonic reactions have more potential energy than the reactants.
In cells, what is usually the immediate source of energy for an endergonic reaction?
A. ADP
B. ATP
C. Sugar
D. Glucose
E. As spontaneous reactions, endergonic reactions do not need an addition of
energy. - ANSWERB. ATP
The hydrolysis of ATP provides the energy needed for an endergonic reaction.
The reaction ADP + P --> ATP is a(n) _____ reaction.
A. Endergonic
B. Spontaneous
C. Exergonic
D. Chemical
E. Hydrolysis - ANSWEREnergy has been acquired from the surroundings.
What are the two types of chemical reactions? - ANSWERspontaneous and non-
spontaneous
, Spontaneous Reaction - ANSWERa type of chemical reaction that occurs without
any outside energy
Non-Spontaneous Reaction - ANSWERa type of chemical reaction that occurs with
outside energy
Free Energy - ANSWERenergy that is available to do work
The energy for an endergonic reaction comes from a(n) _____ reaction.
A. anabolic
B. synthesis
C. ADP + P --> ATP
D. glucose + glucose --> maltose
E. exergonic - ANSWERE. Exergonic
The energy released by an exergonic reaction can be used to drive an endergonic
reaction.
What is the fate of the phosphate group that is removed when ATP is converted to
ADP?
A. It is acquired by a reactant in an endergonic reaction.
B. It is acquired by a reactant in a spontaneous reaction.
C. It is acquired by a reactant in an exergonic reaction.
D. It is broken down into one phosphorus and four oxygen atoms.
E. It is used to convert an ATP into an AQP. - ANSWERA. It is acquired by a
reactant in an endergonic reaction.
By acquiring the phosphate group the reactant acquires energy.
Select the INCORRECT association.
A. kinetic energy ... motion
B. enzyme ... protein
C. potential energy ... positional energy
D. exergonic ... spontaneous
E. exergonic ... uphill - ANSWERE. exergonic ... uphill
Exergonic reactions release energy.
What is energy coupling?
A. the use of energy released from an exergonic reaction to drive an endergonic
reaction
B. the hydrolysis of ATP to ADP + P
C. the use of an enzyme to reduce EA
ANSWERS 100% CORRECT!!
Chemical Reaction - ANSWERoccurs anytime when two or more atoms, ions, or
molecules collide in such a way that they produce a new substance
Which of these is exhibiting kinetic energy?
A. A rock on a mountain ledge
B. A space station orbiting Earth
C. A person sitting on a couch while watching TV
D. An archer with a flexed bow
E. The high-energy phosphate bonds of a molecule of ATP - ANSWERB. A space
station orbiting Earth
Kinetic energy is energy of motion.
What is the First Law of Thermodynamics? - ANSWEREnergy can neither be
created nor destroyed and can only be converted from one form of energy to
another.
"Conservation of energy" refers to the fact that _____.
A. no chemical reaction is 100 percent efficient.
B. if you conserve energy you will not be as tired.
C. the net amount of disorder is always increasing.
D. the entropy of the universe is always increasing.
E. energy cannot be created or destroyed but can be converted from one form to
another. - ANSWERE. energy cannot be created or destroyed but can be converted
from one form to another.
If the reactants have more energy than the products, then energy must be
___________ as the reaction goes forward. - ANSWERreleased
If the reactants have less energy that the products, then energy must be
___________ to the reaction to make it occur. - ANSWERadded
Chemical energy is a form of _____ energy.
A. entropic
B. potential
C. motion
D. kinetic
E. heat - ANSWERB. potential
Chemical energy is a form of stored energy.
,What is the Second Law of Thermodynamics? - ANSWERWhen converting from one
form of energy to another, the amount of useful energy decreases.
According the the Second Law of Thermodynamics, useful energy will be lost as
_________ during a chemical reaction. - ANSWERheat
When the products have less energy than the reactants, then __________ has been
released into the environment. - ANSWERheat
The following reaction
A --> B + C + heat
is a(n) _____ reaction.
A. endergonic
B. anabolic
C. exergonic
D. dehydration synthesis
E. exchange - ANSWERC. exergonic
Energy has been released.
In your body, what process converts the chemical energy found in glucose into the
chemical energy found in ATP?
A. potentiation
B. anabolism
C. cellular respiration
D. redox
E. digestion - ANSWERC. cellular respiration
This is the name given to the process by which the body converts food energy to
energy stored in ATP.
Which of these are by-products of cellular respiration?
A. ATP and carbon dioxide
B. Carbon dioxide and water
C. Glucose, carbon dioxide, and water
D. ATP, carbon dioxide, and water
E. Heat, carbon dioxide, and water - ANSWERE. Heat, carbon dioxide, and water
Describe a spontaneous reaction in terms of energy. - ANSWERRelease free energy
(exergonic)
Reactants have greater energy than the products
Energetically downhill
Energy is released
,A(n) _____ reaction occurs spontaneously.
A. kinetic
B. anabolic
C. chemical
D. exergonic
E. endergonic - ANSWERD. exergonic
In exergonic reactions, the products have less potential energy than the reactants.
Describe a non-spontaneous reaction in terms of energy. - ANSWERRequire free
energy (endergonic)
Reactants have less energy than the products
Energetically uphill
Energy is produced
Which of these reactions requires a net input of energy from its surroundings?
A. ATP --> ADP + P
B. Exergonic
C. Catabolic
D. Endergonic
E. Hydrolysis - ANSWERD. Endergonic
The products of endergonic reactions have more potential energy than the reactants.
In cells, what is usually the immediate source of energy for an endergonic reaction?
A. ADP
B. ATP
C. Sugar
D. Glucose
E. As spontaneous reactions, endergonic reactions do not need an addition of
energy. - ANSWERB. ATP
The hydrolysis of ATP provides the energy needed for an endergonic reaction.
The reaction ADP + P --> ATP is a(n) _____ reaction.
A. Endergonic
B. Spontaneous
C. Exergonic
D. Chemical
E. Hydrolysis - ANSWEREnergy has been acquired from the surroundings.
What are the two types of chemical reactions? - ANSWERspontaneous and non-
spontaneous
, Spontaneous Reaction - ANSWERa type of chemical reaction that occurs without
any outside energy
Non-Spontaneous Reaction - ANSWERa type of chemical reaction that occurs with
outside energy
Free Energy - ANSWERenergy that is available to do work
The energy for an endergonic reaction comes from a(n) _____ reaction.
A. anabolic
B. synthesis
C. ADP + P --> ATP
D. glucose + glucose --> maltose
E. exergonic - ANSWERE. Exergonic
The energy released by an exergonic reaction can be used to drive an endergonic
reaction.
What is the fate of the phosphate group that is removed when ATP is converted to
ADP?
A. It is acquired by a reactant in an endergonic reaction.
B. It is acquired by a reactant in a spontaneous reaction.
C. It is acquired by a reactant in an exergonic reaction.
D. It is broken down into one phosphorus and four oxygen atoms.
E. It is used to convert an ATP into an AQP. - ANSWERA. It is acquired by a
reactant in an endergonic reaction.
By acquiring the phosphate group the reactant acquires energy.
Select the INCORRECT association.
A. kinetic energy ... motion
B. enzyme ... protein
C. potential energy ... positional energy
D. exergonic ... spontaneous
E. exergonic ... uphill - ANSWERE. exergonic ... uphill
Exergonic reactions release energy.
What is energy coupling?
A. the use of energy released from an exergonic reaction to drive an endergonic
reaction
B. the hydrolysis of ATP to ADP + P
C. the use of an enzyme to reduce EA
