bio practical.....

[hassam]

http://www.xtremepapers.me/CIE/Internat ... _qp_31.pdf
i just wanted to know whether my observation in this experiment will be color with iodine after five min

 

[XPFMember]

Assalamoalaikum!!

well...it's actually the time taken for complete digestion of starch!! this was what i did....if i havent forgotten

 

[hassam]

you tell me how i will do it........
well if i add iodine at the beginning ...to starch.....and then add amylase and start timing...then noting time for blue-black to disappear or orange color to appear...this is wat u r saying???

 

[hassam]

question...what is the place where the polypeptide folds and become convoluted and form its complex 3D shape....is it golgi apparatus???

 

[hassam]

math angel...http://www.xtremepapers.me/CIE/Internat ... _qp_32.pdf
this one what should be my observation....shouldn't it be time taken for first color change

 

[princesszahra]

you tell me how i will do it........
well if i add iodine at the beginning ...to starch.....and then add amylase and start timing...then noting time for blue-black to disappear or orange color to appear...this is wat u r saying???

not the correct way to do it!!
u fisrt add starch to test tube and then add amylase
after a specific time , take a liitle out using a dropper and put a drop or two onto a tile having iodine drops( add the mixture to one place of iodine drops!)