KERALA UNIVERSITY Ph.D. ENTRANCE EXAMINATION
OCTOBER – 2015
FACULTY OF APPLIED SCIENCES
Time: 140 Minutes Maximum Marks: 160
Note: Answer any twelve questions from Section B and one question from Section C in the subject concerned. In Section B, each question carries 10 marks. Section C carries 40 marks. In Section B an answer should not exceed 100 words. In Section C, an answer should not exceed 500 words.
SECTION – B
(1). Outline the principle behind the functioning of a Spectrophotometer.
(2). What is a zwitterion? Explain zwitterion with two examples.
(3). How is the functioning of an enzyme regulated? Explain with suitable examples.
(4). Elaborate the importance of isoelectric point in protein purification.
(5). What is sedimentation coefficient? Explain its importance in centrifugation.