mastering bio Ch. 08 (8.1-8.2) - Review

In cells, what is usually the immediate source of energy for an endergonic reaction? ATP glucose ADP as spontaneous reactions, endergonic reactions do not need an addition of energy sugar

ATP

The reaction ADP + P --> ATP is a(n) _____ reaction. spontaneous hydrolysis endergonic chemical exergonic

endergonic

This graph illustrates a(n) _____ reaction. The figure shows a graph of the potential energy of the molecules. The potential energy of the molecules AC and BD is less than the potential energy of the molecules AB and CD. catabolic hydrolysis exergonic spontaneous endergonic

endergonic

Which of these reactions requires a net input of energy from its surroundings? exergonic endergonic catabolic ATP --> ADP + P hydrolysis

endergonic

"Conservation of energy" refers to the fact that _____. no chemical reaction is 100 percent efficient energy cannot be created or destroyed but can be converted from one form to another 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

energy cannot be created or destroyed but can be converted from one form to another

A(n) _____ reaction occurs spontaneously. anabolic kinetic endergonic chemical exergonic

exergonic

The energy for an endergonic reaction comes from a(n) _____ reaction. ADP + P --> ATP exergonic synthesis glucose + glucose --> maltose anabolic

exergonic

The following reaction A --> B + C + heat is a(n) _____ reaction. endergonic anabolic exchange exergonic dehydration synthesis

exergonic

Select the INCORRECT association. kinetic energy ... motion exergonic ... spontaneous exergonic ... uphill potential energy ... positional energy enzyme ... protein

exergonic ... uphill

Chemical energy is a form of _____ energy. heat entropic motion kinetic potential

potential

In your body, what process converts the chemical energy found in glucose into the chemical energy found in ATP? anabolism cellular respiration digestion potentiation redox

cellular respiration

In this reaction _____. [The figure shows a scheme of a chemical reaction. The reactants are two molecules, one of which consists of A and B, the other - of C and D. The products are two molecules, one of which consists of A and C, the other - of B and D. The potential energy of molecules AB and CD is higher than the potential energy of molecules AC and BD.] the products have been rearranged to form reactants AC is a reactant CD is a product the products have less potential energy than the reactants entropy has decreased

the products have less potential energy than the reactants

What is the fate of the phosphate group that is removed when ATP is converted to ADP? It is acquired by a reactant in an endergonic reaction. It is broken down into one phosphorus and four oxygen atoms. It is used to convert an ATP into an AQP. It is acquired by a reactant in an exergonic reaction. It is acquired by a reactant in a spontaneous reaction.

It is acquired by a reactant in an endergonic reaction.

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

a space station orbiting Earth

In this reaction _____. [The figure shows a scheme of a chemical reaction. The reactants are two molecules, one of which consists of A and B, the other - of C and D. The products are two molecules, one of which consists of A and C, the other - of B and D. The potential energy of molecules AB and CD is higher than the potential energy of molecules AC and BD.] disorder has decreased entropy has decreased heat has been released to the environment 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

heat has been released to the environmen

Which of these are by-products of cellular respiration? ATP and carbon dioxide heat, carbon dioxide, and water ATP, carbon dioxide, and water carbon dioxide and water glucose, carbon dioxide, and water

heat, carbon dioxide, and water

What is energy coupling? 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 the use of an enzyme to reduce EA a description of the energetic relationship between the reactants and products in an exergonic reaction

the use of energy released from an exergonic reaction to drive an endergonic reaction