Question

In biological systems, ATP functions by a. providing the energy to drive endergonic reactions. b. acting as an enzyme and lowering the activation energy of certain reactions. c. adjusting the $\mathrm{pH}$ of intracellular solutions to maintain optimal conditions for enzyme activity. d. regulating the speed at which endergonic reactions proceed. e. interacting with enzymes as a cofactor to stimulate chemical reactions.

Name: Problem 5, Chapter 6: Biology
Uploaded: 2021-07-06T14:01:31-08:00
Duration: 4 min 33 s
Channel: Norma Kimmel

   In biological systems, ATP functions by
a. providing the energy to drive endergonic reactions.
b. acting as an enzyme and lowering the activation energy of certain reactions.
c. adjusting the $\mathrm{pH}$ of intracellular solutions to maintain optimal conditions for enzyme activity.
d. regulating the speed at which endergonic reactions proceed.
e. interacting with enzymes as a cofactor to stimulate chemical
reactions.

Biology

Robert J. Brooker 5th Edition

Chapter 6, Problem 5

Instant Answer

Solved by Expert Norma Kimmel

07/06/2021

Step 1

ATP stands for Adenosine Triphosphate. It is a molecule that consists of a sugar (ribose), a base (adenine), and three phosphate groups. Show more…

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In biological systems, ATP functions by a. providing the energy to drive endergonic reactions. b. acting as an enzyme and lowering the activation energy of certain reactions. c. adjusting the $\mathrm{pH}$ of intracellular solutions to maintain optimal conditions for enzyme activity. d. regulating the speed at which endergonic reactions proceed. e. interacting with enzymes as a cofactor to stimulate chemical reactions.

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Key Concepts

ATP as Energy Currency

ATP (adenosine triphosphate) is the primary molecule used by cells to store and transfer energy. Its high-energy phosphate bonds, when hydrolyzed, release energy that cells can harness to perform work, making ATP a central component of cellular metabolism.

ATP Hydrolysis

ATP hydrolysis refers to the breakdown of ATP into ADP (adenosine diphosphate) and an inorganic phosphate, a reaction that releases energy. This process underlies many cellular activities by providing the necessary energy for endergonic reactions, thus allowing non-spontaneous processes to occur.

Endergonic Reactions

Endergonic reactions are chemical processes that require an input of energy to proceed, typically having a positive change in free energy. In biological systems, these reactions are driven by coupling with ATP hydrolysis, which supplies the energy necessary to overcome the inherent energy barrier.

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