Cofactor & Inhibitor

Quiz
•
Biology
•
10th - 11th Grade
•
Medium
Standards-aligned
WC Lim
Used 3+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Blocking active site of an enzyme
competitive inhibition
non-competitive inhibition
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following is directly responsible for the shape of an enzyme/protein?
The amino acid sequence of the protein and the properties of the amino acids that make up the protein.
The temperature of the surrounding environment.
The pH of the surrounding environment.
The amount of substrate present.
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Vitamin C is
Cofactor
Coenzyme
Metal ion activator
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Iron is
Coenzymes
Cofactors
Metal ion activator
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Increasing the substrate concentration in an enzymatic reaction could overcome which of the following?
denaturation of the enzyme
allosteric inhibition
competitive inhibition
saturation of the enzyme activity
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Some of the drugs used to treat HIV patients are competitive inhibitors of the HIV reverse transcriptase enzyme. Unfortunately, the high mutation rate of HIV means that the virus rapidly acquires mutations with amino acid changes that make them resistant to these competitive inhibitors. Where in the reverse transcriptase enzyme would such amino acid changes most likely occur in drug-resistant viruses?
in or near the active site
at an allosteric site
at a cofactor binding site
in regions of the protein that determine packaging into the virus capsid
Tags
NGSS.HS-LS3-2
NGSS.HS-LS4-4
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
According to the induced fit hypothesis of enzyme catalysis, which of the following is CORRECT?
The binding of the substrate slightly changes the shape of the enzyme’s active site
Some enzymes change their structure when activators bind to the enzyme
The binding of the substrate depends on the shape of the active site
A competitive inhibitor can out-compete the substrate for the active site
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