Enzymes and Chemical Reactions- unit 1 Flashcards
What are reactants?
the elements or compounds that enter into a chemcial reaction
What are products?
the elements or compounds produced by the chemical reaction
When is energy released or absorbed?
When chemical bonds are formed or broken.
Can chemical reactions absorb energy without an energy source?
No
What are enzymes?
Proteins that function as biological catalysts by accelerating chemical reactions.
Are enzymes required in small or large amounts?
Small amounts
What is the substrate?
The reactants of enzyme-catalyzed reactions.
What is the active site?
The site on the enzyme where the substrate binds.
True or false: Enzymes reduce the amount of energy needed for the reaction to occur.
True
What is activation energy?
The energy needed to start a reaction.
What is the optimum temperature for enzymes?
37 degrees celsius
What happens to enzymes when they are exposed to extremes?
They become denatured and lose their shape (can no longer function).
