Chapter 6/13: Metabolism & ATP Phosphorylation Flashcards Preview

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Flashcards in Chapter 6/13: Metabolism & ATP Phosphorylation Deck (23):
0

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

Catabolism

1

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

Anabolism

2

What is cell's energy currency?

Adenosine triphosphate (ATP)

3

What are three main mechanisms for synthesizing ATP?

Substrate-level phosphorylation, Oxidative phosphorylation, Photophosphorylation

4

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

Substrate-level phosphorylation

5

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

Oxidative phosphorylation

6

What type of phosphorylation occurs during glycolysis?

Substrate-level phosphorylation

7

What is the end-product of glycolysis?

2 Pyruvate

8

How many ATP molecules does glycolysis require?

2 ATP

9

How many ATP molecules are synthesizes during glycolysis?

4 ATP (net: 2 ATP)

10

What is oxidative phosphorylation also known as?

Chemiosmosis

11

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

Oxidative phosphorylation

12

What is used to drive ATP synthesis in oxidative phosphorylation?

PMF (proton motive force)

13

What process does oxidative phosphorylation typically occur in?

TCA cycle

14

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

6 CO2

15

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

2.5 ATP

16

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

1.5 ATP

17

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

Oxidative phosphorylation

18

What type of phosphorylation occurs in phototrophic bacteria?

Photophosphorylation

19

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

Photophosphorylation

20

What type of phosphorylation requires light energy?

Photophosphorylation

21

What is the ATP generated by photophosphorylation used to drive?

Carbon fixation

22

What type of phosphorylation can be oxygenic or anoxygenic?

Photophosphorylation