Unit 3 Exam Review

  • AP Physics
  • IB Physics
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1. The process described in question 1 takes place in

Explanation

Answer B. The electron Transport Chain and ATP synthase is in the inner membrane and protons are pumped into the space.

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Unit 3 Exam Review - Quiz

Answers are after each question. (Try to answer without hitting "explanation")

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2. This process is most important when oxygen is low

Explanation

D Fermentation allows regeneration of NAD+ so that glycolysis can keep going.

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3. Which is the correct order of events?

Explanation

Answer C This series describes the events in the electron transport chain from NADH (produced in glycolysis and the Krebs Cycle) to Protons Pumped (using the energy from NADH) to ATP being made using a proton gradient.

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4. The electrons from NADH are transferred to

Explanation

C. During Electron Transport, electrons are transferred to oxygen.

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5. The process described in question 1 is

Explanation

The correct answer is A Electron transport involves NADH, Electrons carriers and the end result in a proton gradient used to make ATP via ATP synthase.

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6. Pyruvate +NAD+ +CoA ------>AcetylCoA +NADH +Carbon DioxideIn this reaction, what gets reduced?

Explanation

B NAD+ goes to NADH. This is addition of one electron (Charge goes from +1 to zero). Thus it is a reduction.

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7. The Above reaction

Explanation

A. The end products (right) have more energy than the reactants (Left). Thus Free energy change is positive and energy input is required.

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8. The  Red line is

Explanation

B. Activation energy is less with the enzyme

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9. The Krebs Cycle

Explanation

D Along with NADH, FADH2 is an important product of the Krebs cycle that is used in the electron transport chain.

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10. Pyruvate +NAD+ +CoA ------>AcetylCoA +NADH +Carbon DioxideThis reaction is

Explanation

C Formation of AcetylCoA is needed to bring carbons into the Krebs Cycle

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The process described in question 1 takes place in
This process is most important when oxygen is low
Which is the correct order of events?
The electrons from NADH are transferred to
The process described in question 1 is
Pyruvate +NAD+ +CoA ------>AcetylCoA +NADH +Carbon DioxideIn this...
The Above reaction
The  Red line is
The Krebs Cycle
Pyruvate +NAD+ +CoA ------>AcetylCoA +NADH +Carbon DioxideThis...
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