State the job
Name the transformation and its biological purpose before recalling the enzyme.
ENZYMES & REGULATION
Know the reaction.
Find the control.
Start with purpose, substrate, product, location and regulation. Verify structures, values and named examples in an approved source.
Locate it
Cellular and tissue location explain why a reaction is available in one context but not another.
Find the switch
Ask which signal, substrate state or modification changes the pathway’s direction.
Add context
Fed state, fasting, activity and tissue can make the same reaction mean different things.
RECALL CHECK
Can you explain the control?
Attempt original recall first, then add source-backed examples to your own notes.