3. Energy & Cell Processes

ATP

3. Energy & Cell Processes

ATP

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00:40

Animation: Stick Model of ATP

Animation: The Structure of ATP

Animation: Space-Filling Model of ATP

Animation: Energy Coupling

Professor Dave Explains

The Organic Chemistry Tutor

ATP (Adenosine Triphosphate)

ATP: Adenosine triphosphate | Energy and enzymes | Biology | Khan Academy

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Multiple Choice

Which of the following statements is true?

a) ADP contains more potential energy than ATP.

b) Following hydrolysis, ATP can give off one phosphate group and usable energy, whereas ADP cannot.

c) The energy produced by ATP comes from the breaking of the bond between two phosphate groups.

d) AMP and ADP contain the same amount of potential energy.

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Multiple Choice

How does ATP participate in energy-coupling reactions?

a) Hydrolysis of ATP fuels endergonic reactions.

b) Hydrolysis of ADP fuels endergonic reactions.

c) Synthesis of ATP fuels exergonic reactions.

d) Synthesis of ADP fuels exergonic reactions.

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Multiple Choice

What is ATP's importance in the cell?

In general, the hydrolysis of ATP drives cellular work by __________.

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Multiple Choice

The free energy derived from the hydrolysis of ATP can be used to perform many kinds of cellular work. Which of the following is an example of the cellular work involved in the production of electrochemical gradients?

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Multiple Choice

Much of the suitability of ATP as an energy intermediary is related to the instability of the bonds between the phosphate groups. These bonds are unstable because __________.

Which of the following best characterizes the role of ATP in cellular metabolism?

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Multiple Choice

When 1 mole of ATP is hydrolyzed in a test tube without an enzyme, about twice as much heat is given off as when 1 mole of ATP is hydrolyzed in a cell. Which of the following best explains these observations?

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Multiple Choice

The formation of glucose-6-phosphate from glucose is an endergonic reaction and is coupled to which of the following reactions or pathways?

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Textbook Question

The synthesis of ATP from ADP and a. stores energy in a form that can drive cellular work. b. involves the hydrolysis of a phosphate bond. c. transfers a phosphate, priming a protein to do work. d. is an exergonic process.

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Textbook Question

In Figure 8.10, the energetic coupling of substrate phosphorylation and an endergonic reaction are shown. If the hydrolysis of ATP releases 7.3 kcal of free energy, use the graph in this figure to estimate what you would expect the ∆G values to be for the uncoupled reaction and the two steps in the coupled reaction.

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Textbook Question

What are the main types of cellular work? How does ATP provide the energy for this work?

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Textbook Question

Which of the following statements is/are true regarding ATP?

a. It is the body's primary source of chemical energy.

b. Its production is the main reason humans breathe oxygen.

c. It is produced using the energy from the oxidation of molecular fuels like glucose.

d. All of the above statements are true.

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3. Energy & Cell Processes

ATP

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Practice this topic