BBCCT-103 EM 2026 SOLVED ASSIGNMENT

Description

Assignment

CPURSE TITLE:  Cell Biology

Course Code: BBCCT-103

Assignment code: BBCCT-103/TMA/2026

Maximum marks: 100

Note: Attempt all questions.

1.(a) Describe any two types of extremophiles and the environmental conditions they inhabit.

(b) What are experimental models? Give any two examples along with their specific features.

2.(a) Describe the ultrastructure of a typical plant cell with the help of a labeled diagram.

(b) Compare transmission electron microscopy and light microscopy.

3.(a) Explain the principle and applications of confocal microscopy.

(b) Discuss the importance of fixation and staining techniques in cell biology.

4.(a) Explain the steps involved in subcellular fractionation.

(b) Describe the structure and functions of chloroplast.

5.Write short notes on the following:

(a) Plasmodesmata (b) Microtubules

6.Explain the signal hypothesis. Outline the common characteristics of signal sequences involved in protein targeting.

7.(a) Differentiate between O-glycosylation and N-glycosylation.

(b) Explain the Ran GTP/GDP Cycle.

8.Describe the protein transport pathways into the thylakoid lumen with a neat labeled diagram.

9.(a) Discuss the different sub-phases of prophase I in Meiosis.

(b) Explain the role of cyclins and cyclin-dependent kinases in regulation of cell cycle.

10.Describe any two of the following:

(a) Major players in Apoptosis (b) Necrosis (c) Fluorescence-Activated Cell Sorting (FACS)