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MIBO3500 > Chapter 6/13: Metabolism & ATP Phosphorylation > Flashcards

Chapter 6/13: Metabolism & ATP Phosphorylation Flashcards

0
Q

What type of reactions involve building macromolecules from small precursors by using energy?

A

Anabolism

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1
Q

What type of reaction involve breaking down larger molecules to obtain energy?

A

Catabolism

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2
Q

What is cell’s energy currency?

A

Adenosine triphosphate (ATP)

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3
Q

What are three main mechanisms for synthesizing ATP?

A

Substrate-level phosphorylation, Oxidative phosphorylation, Photophosphorylation

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4
Q

What type of mechanism for ATP synthesis uses an enzyme to transfer a phosphate from an organic molecule to ADP?

A

Substrate-level phosphorylation

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5
Q

What type of mechanism for ATP synthesis uses a proton gradient to attach inorganic phosphate to ADP?

A

Oxidative phosphorylation

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6
Q

What type of phosphorylation occurs during glycolysis?

A

Substrate-level phosphorylation

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7
Q

What is the end-product of glycolysis?

A

2 Pyruvate

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8
Q

How many ATP molecules does glycolysis require?

A

2 ATP

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9
Q

How many ATP molecules are synthesizes during glycolysis?

A

4 ATP (net: 2 ATP)

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10
Q

What is oxidative phosphorylation also known as?

A

Chemiosmosis

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11
Q

What type of phosphorylation involves electrons being passed through an electron transport system?

A

Oxidative phosphorylation

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12
Q

What is used to drive ATP synthesis in oxidative phosphorylation?

A

PMF (proton motive force)

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13
Q

What process does oxidative phosphorylation typically occur in?

A

TCA cycle

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14
Q

What product results from the oxidative phosphorylation of 2 pyruvate after glycolysis?

A

6 CO2

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15
Q

How much ATP can be synthesized from the PMF generated by 1 NADH?

A

2.5 ATP

16
Q

How much ATP can be synthesized from the PMF generated by 1 FADH2?

A

1.5 ATP

17
Q

What type of phosphorylation is a subcomponent of both aerobic and anaerobic respiration?

A

Oxidative phosphorylation

18
Q

What type of phosphorylation occurs in phototrophic bacteria?

A

Photophosphorylation

19
Q

What type of phosphorylation produces ATP using a proton gradient and an electron transport system?

A

Photophosphorylation

20
Q

What type of phosphorylation requires light energy?

A

Photophosphorylation

21
Q

What is the ATP generated by photophosphorylation used to drive?

A

Carbon fixation

22
Q

What type of phosphorylation can be oxygenic or anoxygenic?

A

Photophosphorylation

MIBO3500 (17 decks)

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