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Biotechnology and Biomedical Engineering
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Biochemistry Virtual Lab II
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Structural Studies of Phycobiliproteins from Spirulina
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Structural Studies of Phycobiliproteins from Spirulina
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Theory
Procedure
Self Evaluation
Animation
Assignment
Reference
Feedback
1)
Spirulina is deficient in which essential amino acid?
Tryptophan
Tyrosine
Lysine
Leucine
2)
The chromophore present in phycobiliproteins is:
Phycocyanobilin
phycocyanin
phycobilisome
Both a and b
3)
At what wavelength does the UV spectrum of spirulina protein absorb light?
650nm
625nm
300nm
600nm
4)
What is the mode of action of Urea ?
By unfolding the protein
Disruption of the tertiary structure
By precipitating the protein
Both b and c
5)
UV –Vis spectroscopy provides information about structure of molecules with ____.
double bonds
triple bonds
conjugated dienes
All the above.
6)
What is the absorption spectrum?
A plot of wavelength vs. absorbance.
A plot of wavelength vs. energy absorbed.
A plot of energy absorbed and energy emitted.
None of the above.
7)
Which out of the following absorb and emit light at longer wavelengths?
Allophycocyanin
Phycocyanin
phycobilin
All the above
8)
What is the purpose of adding ammonium sulphate into the spirulina solution?
To cause the salting out of proteins
To precipitate proteins
To denature the proteins
Both a and b
Cite this Simulator:
vlab.amrita.edu,. (2011). Structural Studies of Phycobiliproteins from Spirulina. Retrieved 20 April 2024, from vlab.amrita.edu/index.php?sub=3&brch=64&sim=792&cnt=3
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