Chapter 12. ATP Synthesis

Animation Activities

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Animation Activity 12-32: ATP Synthesis

1.

The F0F1 ATP synthase complex is found:

only in plant thylakoids.

in animal, plant, and bacterial cells.

only in bacterial cells.

only in animal cells.

only in animal and plant cells.

Correct.

Incorrect.

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2.

In mitochondria, newly synthesized ATP is located:

in the mitochondrial inner membrane.

in the mitochondrial intermembrane space.

in the mitochondrial matrix.

in the cytoplasm.

at the plasma membrane.

Correct.

Incorrect.

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3.

Movement of protons down the electrochemical gradient through the F0F1 ATP synthase a subunit rotates:

the a subunit and the rigidly attached b subunits.

the c subunit ring and the rigidly attached γ subunit.

the F1α and β subunits.

the c subunit ring and the α, β, and γ subunits.

None of the above

Correct.

Incorrect.

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4.

Which of the following is NOT directly part of the F0F1 ATP synthase binding mechanism for F1β subunit formation of the phosphoanhydride bond between ADP and Pi?

Formation of the phosphoanhydride bond is catalyzed in the β subunit T state, and the ATP is released in the O state.

The rotational position of the γ subunit determines the conformational state of each β subunit.

All are part of the binding mechanism.

Each β subunit has three distinct conformational states: O, L, and T.

Protons move down an electrochemical gradient through a proton channel at the interface between the a subunit and c subunit ring.

Correct.

Incorrect.

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Chapter 12. ATP Synthesis

Introduction

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