(MCM 1101)
NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
FACULTY OF MEDICINE
MEDICAL SCHOOL
BACHELOR OF MEDICINE AND BACHELOR OF SURGERY DEGREE
PART I EXAMINATIONS
(MCM 1101) : BIOMOLECULES & CELL BIOLOGY
DATE : DECEMBER 2005
TIME : 3 HOURS
Instructions to Candidates
Answer all questions
SECTION A
1. With the aid of diagrams give a detailed account of the buffering capacity of blood.
(20)
2. Explain the fluid mosaic model of the plasma membrane. In your explanation give
details of the major components of the membrane, its asymmetry, its functions as
well as the modulation of its fluidity. (20)
________________________________________________________________
SECTION B
1. Explain the following terms:
a) solvation effect of water (3)
b) isoelectric point of a protein (3)
c) mutarotation (3)
d) hyperchromic effect of DNA (2)
e) derived lipids (2)
2. Name the basic functions of triacyglycerols in animals. (2)
Page 1 of 2
NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
FACULTY OF MEDICINE
MEDICAL SCHOOL
BACHELOR OF MEDICINE AND BACHELOR OF SURGERY DEGREE
PART I EXAMINATIONS
(MCM 1101) : BIOMOLECULES & CELL BIOLOGY
DATE : DECEMBER 2005
TIME : 3 HOURS
Instructions to Candidates
Answer all questions
SECTION A
1. With the aid of diagrams give a detailed account of the buffering capacity of blood.
(20)
2. Explain the fluid mosaic model of the plasma membrane. In your explanation give
details of the major components of the membrane, its asymmetry, its functions as
well as the modulation of its fluidity. (20)
________________________________________________________________
SECTION B
1. Explain the following terms:
a) solvation effect of water (3)
b) isoelectric point of a protein (3)
c) mutarotation (3)
d) hyperchromic effect of DNA (2)
e) derived lipids (2)
2. Name the basic functions of triacyglycerols in animals. (2)
Page 1 of 2
