College-Biology Fill-in-the-blank?

[angelicasongs]

okay, so here are the fill-in-the-blank. I know answers will vary, but I want to see if I'm going in the right direction with my answers at least. Thanks!!!!!!
11.In carbon fixation _______________ is the carbon species being reduced.
12.The protein component of a holoenzyme is called the ___________.
13._____________ is the enzyme that catalyses photorespiration.
14.Respiration in the absence of oxygen is called ___________.
15.The inhibition of a pathway by its product is called ___________.
16.An organic cofactor is called a _________.
17._________ is the term given to the substrate concentration when an enzyme is working at ½ maximal velocity.
18.Pathways are usually regulated at the ________reaction or a reaction that involves a lot of _______.
19.The movement of H+ ions across a membrane through an ATP synthase is an example of ______(what type of movement).
20.Glucose serves as a storage form of _________, ___________, and _____________.