Activities Quiz
1.

Which of these is exhibiting kinetic energy? (Activity 6A)

a rock on a mountain ledge
the high-energy phosphate bonds of a molecule of ATP
a person sitting on a couch while watching TV
an archer with a flexed bow
a space station orbiting Earth


2.

"Conservation of energy" refers to the fact that _____. (Activity 6A)

the entropy of the universe is always increasing
if you conserve energy you will not be as tired
the net amount of disorder is always increasing
no chemical reaction is 100 percent efficient
energy cannot be created or destroyed but can be converted from one form to another


3.

Chemical energy is a form of _____ energy. (Activity 6A)

kinetic energy
heat energy
potential
motion
entropic


4.

In your body, what process converts the chemical energy found in glucose into the chemical energy found in ATP? (Activity 6A)

potentiation
cellular respiration
digestion
anabolism
redox


5.

Which of these are by-products of cellular respiration? (Activity 6A)

ATP, carbon dioxide, and water
glucose, carbon dioxide, and water
ATP and carbon dioxide
heat, carbon dioxide, and water
carbon dioxide and water


6.

Which of these is ATP? (Activity 6B)

answer 1
answer 2
answer 3
answer 4
answer 5


7.

What type of reaction breaks the bonds that join the phosphate groups in an ATP molecule? (Activity 6B)

anabolism
hydrolysis
dehydration decomposition
dehydration synthesis
entropic


8.

In this reaction _____. (Activity 6C)

question 8

the products have less potential energy than the reactants
CD is a product
entropy has decreased
the products have been rearranged to form reactants
AC is a reactant


9.

In this reaction _____. (Activity 6C)

question 9

the chemical energy of the products is greater than that of the reactants
the kinetic energy of the reactants is less than that of the products
entropy has decreased
disorder has decreased
heat has been released to the environment


10.

The reaction A --> B + C + heat is released in a(n) _____ reaction. (Activity 6C)

endergonic
dehydration synthesis
exergonic
exchange
anabolic


11.

A(n) _____ reaction occurs spontaneously. (Activity 6C)

anabolic
endergonic
chemical
exergonic
kinetic


12.

Which of these reactions requires a net input of energy from its surroundings? (Activity 6C)

exergonic
hydrolysis
endergonic
ATP --> ADP + P
catabolic


13.

In cells, what is usually the immediate source of energy for an endergonic reaction? (Activity 6C)

glucose
as spontaneous reactions, endergonic reactions do not need an addition of energy
ADP
ATP
sugar


14.

The reaction ADP + P --> ATP is a(n) _____ reaction. (Activity 6C)

hydrolysis
exergonic
chemical
endergonic
spontaneous


15.

The energy for an endergonic reaction comes from a(n) _____ reaction. (Activity 6C)

anabolic
exergonic
synthesis
ADP + P --> ATP
glucose + glucose --> maltose


16.

What is the fate of the phosphate group that is removed when ATP is converted to ADP? (Activity 6C)

It is acquired by a reactant in an endergonic reaction.
It is used to convert an ATP into an AQP.
It is acquired by a reactant in a spontaneous reaction.
It is acquired by a reactant in an exergonic reaction.
It is broken down into one phosphorus and four oxygen atoms.


17.

This graph illustrates a(n) _____ reaction. (Activity 6C)

question 17

spontaneous
endergonic
hydrolysis
exergonic
catabolic


18.

Select the INCORRECT association. (Activity 6C)

potential energy ... positional energy
exergonic ... uphill
enzyme ... protein
exergonic ... spontaneous
kinetic energy ... motion


19.

What is energy coupling? (Activity 6C)

a description of the energetic relationship between the reactants and products in an exergonic reaction
the use of an enzyme to reduce EA
a barrier to the initiation of a reaction
the use of energy released from an exergonic reaction to drive an endergonic reaction
the hydrolysis of ATP to ADP + P


20.

Enzymes are _____. (Activity 6D)

carbohydrates
minerals
lipids
nucleic acids
proteins


21.

Enzymes work by _____. (Activity 6D)

adding a phosphate group to a reactant
decreasing the potential energy difference between reactant and product
adding energy to a reaction
increasing the potential energy difference between reactant and product
reducing EA


22.

An enzyme _____. (Activity 6D)

is a source of energy for endergonic reactions
is an organic catalyst
increases the EA of a reaction
is a inorganic catalyst
can bind to nearly any molecule


23.

What name is given to the reactants in an enzymatically catalyzed reaction? (Activity 6D)

EA
products
active sites
reactors
substrate


24.

As a result of its involvement in a reaction, an enzyme _____. (Activity 6D)

loses a phosphate group
permanently alters its shape.
loses energy
is unchanged
is used up


25.

What is the correct label for "A"? (Activity 6D)

question 25

ATP
energy of activation
substrate energy
enzyme energy
uphill



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2002 Pearson Education, Inc.,
publishing as Benjamin Cummings