|
|
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 |
|
|
|
"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 |
|
|
|
Chemical energy is a form of _____ energy. (Activity 6A)
|
| kinetic energy |
| heat energy |
| potential |
| motion |
| entropic |
|
|
|
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 |
|
|
|
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 |
|
|
|
Which of these is ATP? (Activity 6B)
|
|  |
|  |
|  |
|  |
|  |
|
|
|
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 |
|
|
|
In this reaction _____. (Activity 6C) 
|
| 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 |
|
|
|
In this reaction _____. (Activity 6C) 
|
| 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 |
|
|
|
The reaction A --> B + C + heat is released in a(n) _____ reaction. (Activity 6C)
|
| endergonic |
| dehydration synthesis |
| exergonic |
| exchange |
| anabolic |
|
|
|
A(n) _____ reaction occurs spontaneously. (Activity 6C)
|
| anabolic |
| endergonic |
| chemical |
| exergonic |
| kinetic |
|
|
|
Which of these reactions requires a net input of energy from its surroundings? (Activity 6C)
|
| exergonic |
| hydrolysis |
| endergonic |
| ATP --> ADP + P |
| catabolic |
|
|
|
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 |
|
|
|
The reaction ADP + P --> ATP is a(n) _____ reaction. (Activity 6C)
|
| hydrolysis |
| exergonic |
| chemical |
| endergonic |
| spontaneous |
|
|
|
The energy for an endergonic reaction comes from a(n) _____ reaction. (Activity 6C)
|
| anabolic |
| exergonic |
| synthesis |
| ADP + P --> ATP |
| glucose + glucose --> maltose |
|
|
|
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. |
|
|
|
This graph illustrates a(n) _____ reaction. (Activity 6C) 
|
| spontaneous |
| endergonic |
| hydrolysis |
| exergonic |
| catabolic |
|
|
|
Select the INCORRECT association. (Activity 6C)
|
| potential energy ... positional energy |
| exergonic ... uphill |
| enzyme ... protein |
| exergonic ... spontaneous |
| kinetic energy ... motion |
|
|
|
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 |
|
|
|
Enzymes are _____. (Activity 6D)
|
| carbohydrates |
| minerals |
| lipids |
| nucleic acids |
| proteins |
|
|
|
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 |
|
|
|
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 |
|
|
|
What name is given to the reactants in an enzymatically catalyzed reaction? (Activity 6D)
|
| EA |
| products |
| active sites |
| reactors |
| substrate |
|
|
|
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 |
|
|
|
What is the correct label for "A"? (Activity 6D) 
|
| ATP |
| energy of activation |
| substrate energy |
| enzyme energy |
| uphill |
