M.Sc. (Semester II) (CBCS) Examination Oct/Nov-2017
Biotechnology
CELL BIOLOGY
Day Date: Friday, 17-11-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
Instructions: All questions of Section I is compulsory.
Answer any Four questions from section II.
All question carry equal marks.
Draw neat and labeled diagrams wherever necessary.
Figures to the right indicate full marks.
Section I
Q.1 Rewrite the sentence after choosing the correct from the given 07
The main function of Centrosome is
Secretion Osmoregulation
Protein Synthesis Formation of Spindle Fiber
is a type of adhering junction between animal cells.
Tight junction Gap junction
ATP GTP
Protoplasm found inside the nucleus is known as
Amyloplast Nucleopalsm
Cytoplasm Elaioplast
Plasmo-desmata occurs in
Plants Animals
Bacteria All of the above
is a type of adhering junction between animal cells.
Tight junction Calcium gated channel
ATP GTP
Receptors that are recognized by immune system are
Immunoglobulin MHC proteins
T receptors All of the above
Gap junctions are formed by
The fusion of plasma membranes to form a single membrane.
The insertion of protein complexes that form tunnel between cells
Gap in the cell wall of plants
None of the above
Define the terms 07
Endoplasmic Reticulum
Cell-matrix Interaction
Gastrulation
Meiosis
Lysosomes
Apoptosis
Selectins
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SLR-ME-102
Section II
Q.2 Add a brief note on cell senescence and Programmed cell death. 14
Q.3 Add a note on cell cycle and role of cyclins and cdks during cell division. 14
Q4 Explain in detail cell structure and organization of prokaryotic and eukaryotic
cells.
14
Q5 Answer any two from the following 14
Cell cytoskeleton
Tight and Gap junction
Blastulation and Gastrulation cell cleavage.
Q.6 Write short notes on (any two) 14
Desmosomes and Hemidesmosomes.
WNT Singling pathway.
Cell-Matrix Interaction