Help with a biology question...?

Question

Okay, so this is my assignment but I have no idea how to do it. I've been trying to figure it out since last night.

b. write out the substrates, enzymes and products of at least three steps in the following format, with one enzymatic step per line:

Substrates --[enzyme]--> product(s)

c. Indicate the source you used for obtaining this information.

He gave an example:
Pathway: Pyrimidine biosynthesis
1. bicarbonate + glutamine + 2 ATP --[carbamoylphosphate synthetase]--> carbamoylphosphate + glutamate +2 ADP + 2 phosphates
2. carbamoylphosphate + aspartate --[aspartate transcarbamoylase]--> carbamoylaspartate + phosphate
3. carbamoylaspartate --[dihydroorotase]--> dihydroorotate + water
Source: Neuhard, J. & Nygaard, P. (1987). Purines and Pyrimidines. In Escherichia coli and Salmonella typhimurium: Cellular and Molecular Biology.

The pathway I've chosen is Oxidative Phosphorylation.
So could someone help me please?

Answer 1

Here's a site that tells the enzymes necessary for each step.

http://www.gwu.edu/~mpb/oxidativephos.htm