Chapter 7 -1 Flashcards Preview

Biology 101 > Chapter 7 -1 > Flashcards

Flashcards in Chapter 7 -1 Deck (16):
1

What are the 2 ways to make ATP?

Aerobic respiration
Fermentation

2

Which is the most efficient type to make ATP?

aerobic respiration b/c it utilizes oxygen

3

What allows energy to be released in aerobic respiration?

stepwise oxidation of glucose

4

What do the first 2 stages of aerobic respiration do?

remove electrons from glucose, which is oxidized to C02

5

What does the third stage of aerobic respiration do?

uses electron fall from carriers to 02 to establish H+ gradient

6

What is the first stage of aerobic respiration called?

Glycolysis "Sugar splitting"

7

Where does glycolysis occur?

in cytoplasm

8

What is glycolysis?

the oxidation of glucose to 2 pyruvates

9

What are the 2 phases of glycolysis?

ATP investment and ATP pay off

10

What are the Glycolysis ATP requiring steps?

1. ATP energizes
Glucose 6 phosphate
2. ATP makes molecule unstable
Frucose 1, 6 bisphosphate

11

What happens in the ATP payoff?

2 PGAL are oxidized & phophorylated/ NAD+ reduced

12

What other reactions happen in the ATP payoff?

4 ATP produced by substrate level phosphorylation
2 pyruvate

13

What is the substrate level phosphorylation?

the transfer of phosphates from organic substrates to ADP forming ATP

14

Where does the substrate level phosphorylation occur?

in glycolysis and the Krebs cycle

15

What happens in Stage of of Mitochondria?

each pyruvate is oxidized releasing 1 C02 each

16

What is formed in stage 2 of mitochondria?

2C acetate energized by combining with coenzyme A forming acetyl CoA