what is the difference between pka and pi
Isoelectric point For an amino acid with only one amine and one carboxyl group, the pI can be calculated from the mean of the pKas of this molecule.[4]
Life of Pi (film) Life of Pi is a 2012 American survival drama film based on Yann Martel's 2001 novel of the same name. Directed by Ang Lee, the film's adapted screenplay was written by David Magee, and it stars Suraj Sharma, Irrfan Khan, Rafe Spall, Tabu, Adil Hussain, and Gérard Depardieu. The storyline revolves around an Indian man named "Pi" Patel, telling a novelist about his life story, and how at 16 he survives a shipwreck in which his family dies, and is adrift in the Pacific Ocean on a lifeboat with a Bengal tiger. The film had its worldwide premiere as the opening film of the 51st New York Film Festival at both the Walter Reade Theater and Alice Tully Hall in New York City on September 28, 2012.[9]