Enzymes Flashcards
(42 cards)
Enzymes are an example of
Functional proteins
What are enzymes consisted of
Amino Acids
Polypeptide chains that make up an enzyme are
Folded in a highly specific way
to give the enzyme a precise
three dimensional shape
The shape of polypeptide chains are influenced by
weak hydrogen bonds and
R group interactions.
What is activation energy?
Minimum amount of energy needed to start a chem. reaction.
Lactase digests
lactose
Amylase digests
Amylose
Sucrase digests
Sucrose
Maltase digests
Maltose
Lipase digests
lipids
Protease digests
protein
Reactant in an enzyme substrate reaction s also called a
Substrate
What are catalysts?
Anything that speeds up chemical reactions such as Enzymes
What is anabolism
The process of building up larger molecules.
What is catabolism?
It is the process of breaking down molecules into smaller ones.
What is the function of enzymes
Enzymes are catalysts that speed of the rate of a chemical reaction. How? By lowering the activation energy.
What is the active site
The active site is the region on an enzyme where the substrate binds.
What factors affect enzyme activity
Temperature, pH, and substrate concentration.
Why can enzymes be reused?
They are not changed nor used up in a reaction and are effective in minute quantity
Why are enzymes specific?
They catalyze ONLY one substance(even isomers are not interchangable)
What does ph stand for?
Parts per hydrogen
What pH is acidic and what pH is’t basiuc?
pH 1-6 is acidic
pH 7-14 is basic
What range do most enzymes prefer
A narrow pH range
What happens with a change in pH?
It would break the bonds that hold tertiary structure.