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CODE NO: R050212303 SET NO. 4
2007 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY
II B.TECH I SEMESTER REGULAR EXAMINATIONS
CELL BIOLOGY
(BIO-TECHNOLOGY)
NOVEMBER 2007
MAX MARKS: 80
TIME: 3 HOURS
Answer any FIVE Questions
All Questions carry equal marks
1. With a neat labelled diagram explain the structure of a typical eukaryotic cell. [16]
2. What property allows carbon compounds to exist in a number of forms and what
properties of a carbon atom are critical to life? [16]
3. What are the major functions of nucleus? How are nuclear pores important in
protein trafficking? [16]
4. Elaboraye on the role of symporters and Antiporters as transport proteins in co-
transport of substances across Plasma membrane. [16]
5. Describe the following - Cell cycle; cell plate; centrioles; centromere; sister chro-
matids; spindle fibers. [16]
6. Using Hematopoietic system explain stem cell differentiation. [16]
7. What do receptors accomplish for a cell? Explain. [16]
8. Using a suitable example discuss the role of secondary messengers in signal trans-
duction.
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