Enzymes And Biochemical Reactions (Biology) Flashcards
(39 cards)
What critical task do enzymes perform
Lowering a reactions activation energy
A substance that speeds up a chemical reaction without being changed
Catalyst
A biological catalyst (usually a protein)
Enzyme
The reactant molecule that an enzyme works on
Substrate
The part of the enzyme where the substrate binds
Active site
How do enzymes lower activation energy
By binding to a substrate and holding it in a way that allows the reaction to happen more efficiently
What are the 5 factors affecting enzyme activity
Temperature, Ph, Enzyme concentration, substrate concentration and competitive inhibitor
Enzymes can be __
Reused
What enzyme was used in the experiment
Yeast catalase
What letters do most enzymes end with
Ase
If the graph starts at 4 and ends at 10, what is 4-10
The range
If the line never touches 12 and 14 what is that part
No enzymatic activity
What is the optimum ph of the enzyme
8
If an enzyme is under 7 ph
Acidic
If an enzyme is over 7 ph
Basic
If an enzyme is exactly 7 ph
Neutral
Why do our bellies make noise
Because it is acidic
What does competitive inhibitor do
Goes to enzymes active site, causing the substrate to no longer bind
What are the 2 internal body condition factors
Temperature and Ph
What are the environmental conditions
Enzyme/substrate concentration and competitive inhibitor
What organic molecule are enzymes made of
Proteins
What happens to water when exposed to 100 degrees Celsius
Begins go boil and molecules evaporate
What happens when proteins go through 100 degrees Celsius
They change shape and denaturation
What specific changes happens to enzymes to make them stop working
Denaturation
