You Are Given a Mixture That Contains Glutamic Acid (PI

question 94

Essay

You are given a mixture that contains glutamic acid (pI = 3.2),arginine (pI = 10.8),and valine (pI = 6.0),and you subject the mixture to electrophoresis.
a)Which amino acids migrate toward the cathode when the electrophoresis is carried out at a pH of 7.1?
b)Which amino acids migrate toward the anode when the electrophoresis is carried out at a pH of 7.1?
c)Which amino acid migrates farthest toward the anode at a pH of 7.1?
d)Since amino acids themselves are colorless,how is the separation of amino acids after electrophoresis detected?

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Definitions:

Cost of Goods Sold

The total cost of materials and labor needed to produce the goods or services sold by a company.

LIFO Inventory Method

An accounting method where the last items of inventory purchased are the first ones used or sold, affecting the cost of goods sold and ending inventory values.

FIFO Inventory Method

A method of accounting for inventory that assumes the first items placed in inventory are the first sold.

Balance Sheet

A document that provides a snapshot of a corporation's assets, debts, and shareholder's equity at a given point in time.