
Quiz on Concentrating Protein Solutions

Quiz
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Biology
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Professional Development
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most common method for purification after extraction and isolation?
Filtration
Concentrating Protein Solutions
Chromatography
Electrophoresis
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which salt is commonly used for precipitating proteins out of solution?
Calcium carbonate
Potassium chloride
Sodium chloride
Ammonium sulfate
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary benefit of concentrating protein solutions?
Decrease in purity
Reduction in volume of extract
Increase in volume
Increase in temperature
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the principle behind salting out proteins?
Increased pH
Increased temperature
Decreased solubility due to reduced water availability
Increased solubility
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what temperature should the salting out process be maintained to avoid irreversible denaturation?
0°C
25°C
4°C
Room temperature
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using ammonium sulfate in protein precipitation?
To enhance protein denaturation
To decrease protein concentration
To stabilize proteins and prevent proteolysis
To increase protein solubility
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used to remove salt after ammonium sulfate precipitation?
Dialysis
Centrifugation
Lyophilization
Filtration
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