Unit G Flashcards
What is METABOLISM?
The sum of all CHEMICAL REACTIONS
What is an ENZYME?
Proteins that SPEED UP CHEMICAL REACTIONS
What is a SUBSTRATE?
The MOLECULE an ENZYME acts on
What is a COENZYME?
Small MOLECULE that HELPS an ENZYME
What is ACTIVATION ENERGY?
The ENERGY needed to START ALL CHEMICAL REACTIONS
What is the “LOCK AND KEY” model?
THE ENZYME is like a “lock” and the SUBSTRATE is like a “KEY”
What role do VITAMINS play in BIOCHEMICAL REACTIONS?
They act as PRECURSORS to COENZYMES
What does an ENZYME do?
ENZYMES act as BIOLOGICAL CATALYSTS, they SPEED UP CHEMICAL REACTIONS
What does a COENZYME do?
COENZYMES assist ENZYMES and their FUNCTIONS
What relation does pH have to ENZYMES?
All ENZYMES need an optimal pH
What relation does TEMPERATURE have to ENZYMES?
TEMPERATURE increases ENZYME ACTIVITY
What relation does SUBSTRATE CONCENTRATION have to ENZYMES?
INCREASING SUBSTRATE increases ACTIVITY
What relation do COMPETITIVE INHIBITORS have to ENZYMES?
INHIBITORS compete with A SUBSTRATE for ENZYME SITES
What relation do HEAVY METALS have to ENZYMES?
HEAVY METALS bind to an ENZYME, causing DENATURATION
Order of BODY ORGANIZATION
CELL - TISSUE - ORGAN - ORGAN SYSTEM
