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Biotechnology and Biomedical Engineering
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Biochemistry Virtual Lab I
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Isoelectric Precipitation of Proteins: Casein from Milk
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Isoelectric Precipitation of Proteins: Casein from Milk
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Theory
Procedure
Self Evaluation
Animation
Simulator
Assignment
Reference
Feedback
1)
What type of protein is casein?
Sulphur containing
Phosphoprotein
Aminoprotein
Lactoglobulin
2)
What is the role of ethanol in precipitation?
To kill microbes in milk.
To remove fat in milk.
For salt removal.
None of the above.
3)
What is Isoelectric pH?
pH at which equal amounts of proton acceptor and proton donor are present.
pH at which the charge of the species is neutral.
PH at which the species show maximum solubility.
All the above.
4)
If the PH of a protein is below its isoelectric point, what will happen?
Protein will precipitate.
Protein will be soluble.
Protein will aggregate.
None of the above.
5)
Milk is deficient in which very important mineral?
Sulphur
Iron
Magnesium
Calcium
6)
Major protein present in milk is:
Albumin
Lactose
Lactin
Casein
7)
The sugar present in milk:
choline
lactose
starch
fructose
8)
What happens to pH when acid is added to a solution?
Decreases pH.
Increases pH.
Can increase or decrease pH.
None of the above.
Cite this Simulator:
vlab.amrita.edu,. (2011). Isoelectric Precipitation of Proteins: Casein from Milk. Retrieved 11 December 2024, from vlab.amrita.edu/?sub=3&brch=63&sim=158&cnt=3
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