Electron Transport Chain

Question 1

Where does the electron chain happen?

Answer 1

In the cristae (the inner membrane of mitochondria)

Question 2

What are the important molecules in the E.T.C and where are they?

Answer 2

H+ pumps (embedded in the cristae), electron carriers (NADH FADH, which come and go), and ATP synthase (in cristae as well)

Question 3

What do H+ pumps do?

Answer 3

Bind and release electrons connected to the protons of the hydrogen molecule (which is released by NADH & FADH2). H+ is moved from matrix to the outer compartment

Question 4

What is ATP synthase?

Answer 4

Enzyme that allows the H+ ions in the outer compartment back into the matrix so enough kinetic energy forces ADP to turn into ATP

Question 5

Electrons from coenzymes to _________.

Answer 5

O2 (electron acceptors)

Question 6

How many ATP molecules does it take to get NADH from glycolysis to the electron transport chain and why do we need that?

Answer 6

IT TAKES 2 ATP MOLECULES; TO MADE 3 MORE ATP MOLECULES IN THE ELECTRON TRANSPORT CHAIN. NADH ALSO DRIVES THE PROCESS OF E.T.C.