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Flashcards in Cellular Respiration Deck (26)
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1
Q

What is stage 1 of cellular respiration?

A

glycolysis

2
Q

Where does glycolysis take place?

A

the cytoplasm

3
Q

Does glycolysis need oxygen?

A

No. It is an anaerobic process

4
Q

Glycolysis produces a net 2 of what molecules?

A

ATP , NADH, Pyruvic Acid

5
Q

What is released in glycolysis?

A

hydrogen

6
Q

Where does the Krebs cycle take place?

A

mitochondrial matrix

7
Q

Is the Krebs cycle aerobic or anaerobic?

A

aerobic

8
Q

What happens to the 2 pyruvates in the Krebs cycle?

A

Each 3 carbon Pyruvate is converted into a molecule of 2 carbon acetyl-CoA

9
Q

Where does the NADH come from in the Krebs cycle? How many?

A
  • 2 when Pyruvate is converted into carbon acetyl-CoA

- 6 when carbon acetyl-CoA goes through the citric acid cycle

10
Q

Where does the CO2 come from in the Krebs cycle?

A

when Pyruvate is converted into carbon acetyl-CoA, O2 breaks off one carbon ring each

11
Q

Where does the FADH2 come from in the Krebs cycle? How many?

A

2 when carbon acetyl-CoA goes through the citric acid cycle

12
Q

Where does the ATP come from in the Krebs cycle? How many?

A

2 when carbon acetyl-CoA goes through the citric acid cycle

13
Q

What two products are released when carbon acetyl-CoA goes through the citric acid cycle

A

CO2, and Hydrogen

14
Q

Stage 3 of the cellular respiration is also known as what?

A

Oxidative Phosphorylation

15
Q

NADH delivers e-’s to the _____ _______ in the ETC

A

first protein

16
Q

-FADH2 delivers e-’s to the _______ ________ in the ETC.

A

second protein

17
Q

Each NADH yields about _ ATP’s

A

3

18
Q

Each FADH2 yields about _ ATP’s

A

2

19
Q

How do the electrons impact the hydrogens as they flow down the ETC?

A

As electrons flow down the chain they cause Hydrogens to get sucked out of the mitochondrial matrix into the inner membrane space.

20
Q

What happens to the H+ that is in the inner membrane space?

A

As the concentration of H+’s build up they are sucked back into the mitochondrial matrix through ATP synthase

21
Q

How is water made in the ETC?

A

Oxygen is the final e- acceptor, it bonds with H+ to make water

22
Q

What happens to water in cellular respiration

A

it is released

23
Q

How many ATPs does the ETC produce?

A

32-34 ATP’s

24
Q

Define fermentation

A

anaerobic ATP production that occurs after glycolosis when oxygen is not available. (not efficient , 2 ATP’s)

25
Q

Descibe Lactic Acid Fermentation

A

produces 2 ATP’s and lactic acid (lactate). The lactic acid is stored in muscles and turned into pyruvate

26
Q

Describe Alcoholic Fermentation

A

produces 2 ATP’s, CO2, and ethyl alcohol