BIO 181 LAB FINAL / STUDY GUIDE EXAM NEWEST
ACTUAL QUESTIONS AND ANSWERS (A+ GUIDE
SOLUTION)
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Terms in this set (110)
What is a catalyst? A substance that increases the rate of a chemical reaction
without being used up
What is an enzyme? A biological molecule that increases the rate of a chemical
reaction without being consumed, usually a protein.
What is the activation
The energy required to convert a substrate to a product
energy?
How do enzymes catalyze By forming a substrate-enzyme complex. The enzyme brings
reactions? the substrates together and put stress to break the bonds.
Enzymes create a micro-environment or break bonds
, What are 7 properties of Most are proteins.
enzymes?
Highly specific to - usually - one substrate.
They form an enzyme-substrate complex:
E + S ↔ ES → P + E
They do not affect the direction of a reaction.
They lower the energy of activation of a reaction.
They are not consumed in the reaction.
They are often highly regulated.
How does an inhibitor work? Prevents binding of the target molecule of the enzyme by
binding to the active site or another site
What are the 2 types of Competitive and Noncompetitive
inhibitors?
What affects enzymatic Substrate specificity, substrate/enzyme concentration, pH and
activity? temperature
How does substrate Substrate specificity is a term for the fact that each
specificity affect enzyme generally converts only one specific substrate for
enzymatic activity? one specific reaction. The more specific a substrate is, the
enzyme will want to react with that substrate
If there is too much substrate compared to the enzyme,
How does substrate/enzyme
enzymatic activity will plateau
concentration affect
enzymatic activity? Increasing the amount of enzymes will increase the rate of
enzymatic activity
ACTUAL QUESTIONS AND ANSWERS (A+ GUIDE
SOLUTION)
Practice questions for this set
Learn
Studied terms
Nice work, you're crushing it
Continue studying in Learn
Terms in this set (110)
What is a catalyst? A substance that increases the rate of a chemical reaction
without being used up
What is an enzyme? A biological molecule that increases the rate of a chemical
reaction without being consumed, usually a protein.
What is the activation
The energy required to convert a substrate to a product
energy?
How do enzymes catalyze By forming a substrate-enzyme complex. The enzyme brings
reactions? the substrates together and put stress to break the bonds.
Enzymes create a micro-environment or break bonds
, What are 7 properties of Most are proteins.
enzymes?
Highly specific to - usually - one substrate.
They form an enzyme-substrate complex:
E + S ↔ ES → P + E
They do not affect the direction of a reaction.
They lower the energy of activation of a reaction.
They are not consumed in the reaction.
They are often highly regulated.
How does an inhibitor work? Prevents binding of the target molecule of the enzyme by
binding to the active site or another site
What are the 2 types of Competitive and Noncompetitive
inhibitors?
What affects enzymatic Substrate specificity, substrate/enzyme concentration, pH and
activity? temperature
How does substrate Substrate specificity is a term for the fact that each
specificity affect enzyme generally converts only one specific substrate for
enzymatic activity? one specific reaction. The more specific a substrate is, the
enzyme will want to react with that substrate
If there is too much substrate compared to the enzyme,
How does substrate/enzyme
enzymatic activity will plateau
concentration affect
enzymatic activity? Increasing the amount of enzymes will increase the rate of
enzymatic activity
