Unit 3 Electron Transport Chain

Question 1

What is the electron transport chain?

Answer 1

a part of cellular resperation made up of transport protiens transforing electrons from NADH and FADH and H+

Question 2

where does the ETC take place?

Answer 2

the christae (inner membrane) of the mitchondra

more fold = more surface area = more ETC =more ATP

Question 3

What is the input and output of ETC?

Answer 3

In put:
Glycolisis: 2 FADH or 2 NADH
pyruvate oxidation: 2 NADH
Krebs cycle: 6 NADH, 2 FADH

Output of Chemosmosis:
Glycolisis: 4 ATP or 6 ATP
pyruvate oxidation: 6 ATP
Krebs cycle: 22 ATP

Question 4

how much ATP can 1 NADH make?
how much ATP can 1 FADH make?

Answer 4

NADH = 3 ATP

FADH = 2 ATP

Question 5

What are the name of the protien complexes in the ETC?

1.
2. + coenzyme
3.
4.
5.

Answer 5

1. NADH dehydrogenase
2. cytochrome b-cs cpmlex
   + coenzyme Q
3. cytochrome c
4. cytochrome oxidase complex
5. succinate dehydrogenase

Question 6

Explain the different shuttles NADH from glycolysis gets into the ETC

1. glycerol-phosphate shuttle:
2. malate-asparate shuttle:

Answer 6

1. glycerol-phosphate shuttle: 2NADH–> 2FADH
2. malate-asparate shuttle: 2NADH–>2NADH