Respiration: electron transfer chain

Question 1

In total from the previous stages how many co-enzymes do we have?

Answer 1

= 10 reduced NAD
= 2 reduced FAD

Question 2

What happens in the mitochondrial matrix?

Answer 2

= the hydrogen atoms are split into protons (H+) and electrons for all reduced coenzymes
= the electrons are passed along the electron transport chain, in the inner membrane of the cristae there are embedded proteins, when electrons move to the next protein, it releases enough emergu to treansport a proton onto the inter membrane space
= the energy of the carrier proteins decreases as we move on
=

Question 3

What happens in the inner membrane space?

Answer 3

= as H+ ions are pumped through into the inner membrane space, this creates a high to low concentration gradient, moves down the concentratiom gradient by facilitated diffusion across ATP synthase, carrier proteins, this caatlyses the reaction of ADP + pi, adp phospolryation to produce ATP- energy is released

Question 4

What is the role of oxygen?

Answer 4

= in the matrix is the final electron acceptor, binds to electrons and protons to form water