ECPI BIO 111 DR.T Ch:4 Exam
Questions With 100% Verified Correct
Answers.
What are cofactors Function?
Non-protein substance that combines with the enzyme to activate it.
Some help fold active site into proper conformation
Some help bind enzyme to substrate.
Are cofactors large or small?
Really Small
what are cofactors derived from?
Can be ion, element, or small organic molecule (coenzyme)
What is an enzyme?
a substance produced by a living organism that acts as a catalyst to bring about a specific
biochemical reaction.
What is the active site on an enzyme?
substrate molecule
What factors affect enzyme activity and chemical reaction rates?
Heat affects enzyme activity and chemical reaction
shape of enzyme (conformation)
is vital to its functioning
Denaturation:
, Inactivation of an enzyme (or any other protein), due to an irreversible change in
its conformation.
Factors that can alter conformation of an enzyme:
-excess heat
-radiation
-electricity
-specific chemicals
-extreme pH values
-some poisons
What does Glycolysis mean?
breaking down glucose
The Major events of Glycolysis (3 phases of glycolysis)
Phosphorylation of Glucose
Splitting / cleavage of glucose into 2 3-carbon molecules
Production of NADH, ATP, and 2moleculs of pyruvic acid
What are the products of glycolysis?
2 pyruvate, 2 ATP, 2 NADH
What are the major events of the Kreb's Cycle?
Acetyl CoA combine with Oxaloacetic acid, produces citric acid, citric acid is changed
back oxaloacetic acid through series of reactions
What are the products of the Krebs Cycle?
·1ATP
Questions With 100% Verified Correct
Answers.
What are cofactors Function?
Non-protein substance that combines with the enzyme to activate it.
Some help fold active site into proper conformation
Some help bind enzyme to substrate.
Are cofactors large or small?
Really Small
what are cofactors derived from?
Can be ion, element, or small organic molecule (coenzyme)
What is an enzyme?
a substance produced by a living organism that acts as a catalyst to bring about a specific
biochemical reaction.
What is the active site on an enzyme?
substrate molecule
What factors affect enzyme activity and chemical reaction rates?
Heat affects enzyme activity and chemical reaction
shape of enzyme (conformation)
is vital to its functioning
Denaturation:
, Inactivation of an enzyme (or any other protein), due to an irreversible change in
its conformation.
Factors that can alter conformation of an enzyme:
-excess heat
-radiation
-electricity
-specific chemicals
-extreme pH values
-some poisons
What does Glycolysis mean?
breaking down glucose
The Major events of Glycolysis (3 phases of glycolysis)
Phosphorylation of Glucose
Splitting / cleavage of glucose into 2 3-carbon molecules
Production of NADH, ATP, and 2moleculs of pyruvic acid
What are the products of glycolysis?
2 pyruvate, 2 ATP, 2 NADH
What are the major events of the Kreb's Cycle?
Acetyl CoA combine with Oxaloacetic acid, produces citric acid, citric acid is changed
back oxaloacetic acid through series of reactions
What are the products of the Krebs Cycle?
·1ATP
