Sunday, 1 May 2011
Friday, 29 April 2011
Thursday, 21 April 2011
Biochemistry Lab 6
DNA extraction
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http://www.youtube.com/watch?v=X6kEWPI5-S4&feature=related
http://www.youtube.com/watch?v=UlzERP3KGZ0
http://www.youtube.com/watch?v=X6kEWPI5-S4&feature=related
http://www.youtube.com/watch?v=UlzERP3KGZ0
_______________________
Step 1 : Breaking down cell membrane :
Step 1 : Breaking down cell membrane :
Step 2 : Heating and denaturing proteins in 15 minutes :
Step 3 : Precipitating DNA from alcohol solution :
Remove the beaker and place it in an ice bath for 10 minutes
The whitish viscous strands of DNA should precipitate out of the alcohol layer and form a whitish interface
Putting the thread DNA on the slid
Wednesday, 6 April 2011
Biochemistry Lab 5
Lipids (2)
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test for unsaturated fat
http://www.youtube.com/watch?v=2C_6ax2TsV8
_________________________
http://www.youtube.com/watch?v=2C_6ax2TsV8
_________________________
Soap (1ml) + H2O (1ml) and well shake → Miscible in water
Soap (1ml) + conc. H2SO4 (1ml) and well shake → The oil or fat is Separated at the surface
Soap (1ml) + NaCl (1ml) and well shake → The conc. Soap is Separated at the surface white ppt. is formed and insoluble in water .
Soap (1ml) + 10% CaCl2 (1ml) and well shake → White ppt. is formed and insoluble in water
Friday, 25 March 2011
Biochemistry Lab 4
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_________________________________
تجربه saponification
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Make the soap
( in our lap )
بصيغه الـ MP4
بصيغه الـ AVI
Tuesday, 15 March 2011
Biochemistry Lab 3
Thursday, 3 March 2011
Tuesday, 22 February 2011
biochemistry Lab 1
video of
amylase activity test
__________
video of
Benedict's test
Benedict's test
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