IGNOU MZO 001 SOLVED ASSIGNMENT

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MZO 001 2025 - English

ASSIGNMENT

Course Code: MZO-001

Assignment Code: MZO-001/TMA/2025

Maximum Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it.

1. a) Write a brief note on the origins of the chloroplast and mitochondria.

b) Describe the biological significance of the cytoskeleton.

2.a) Briefly discuss the structure of intermediate filaments.

b) How is the MAPK pathway activated? Explain.

3. Write difference between following pairs:

i) Centrosomes and Centrioles

ii) Intrinsic and extrinsic apoptotic pathways

iii) Cilia and flagella

iv) Actin and myosin

4. Write a short note on the following:

i) Plasma membrane

ii) Necrosis

iii) Cryopreservation of cell line

iv) Facilitated Diffusion

5.a) Briefly discuss the process of transduction in the cell signaling.

b) Discuss the different types of cell junctions.

6.a) Describe the role of ubiquitin in protein turnover

b) Discuss different phases of Interphase with suitable diagram.

7.a) Enlist the culture media used in the cell culture.

b) Explain what are the checkpoints and its regulation?

8.a) Define active transport? Discuss with suitable examples.

b) Explain the vesicular transportation mechanism in details.

9.a) Describe the role of G-protein coupled receptors (GPCRs) in signal transduction of cells.

b) What are the main glands found in the brain and how do they function.

10. a) Define Cyclin-CDK kinases. Write a brief note about the interaction between cyclin and CDKs.

b) Explain how cellular pH maintained and regulated.

 

MZO 001 (January 2026 - July 2026) - ENGLISH

ASSIGNMENT

Course Code: MZO-001

Assignment Code: MZO-001/TMA/2026

Maximum Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it.

1.

a) Explain the various steps involved in the signal transduction through G-protein coupled receptors.

b) Discuss different forms of lysosomes in a cell.

2.

a) Explain how different drugs affect actin filament using suitable examples.

b) What are the fundamental principles of signal transduction that can be applied across various signalling pathways?

3.

Differentiate between the following pairs of terms:

i) Polar microtubules and Kinetochore microtubules

ii) Diplotene and Diakinesis

iii) Primary active transport and Secondary active transport

iv) Desmosomes and Hemidesmosomes

4.

a) Describe the assembly and disassembly process of microtubules.

b) Discuss how do you measure cell viability?

5.

a) Discuss the ubiquitin-proteasome pathway in regulating intracellular protein turnover.

b) Define Cyclin-CDKs kinases. Write a brief note on the relationship between cyclin and CDKs.

6.

a) Explain the process of meiosis in oogenesis and spermatogenesis in animals using suitable diagrams.

b) Discuss the various applications of animal cell culture.

7.

a) Discuss the intrinsic pathway of apoptosis with suitable diagrams.

b) Explain the role of Cadherin in cell-cell adhesions.

8.

a) Describe how ATP is utilized during actin treadmilling.

b) Discuss how do the cell organelles maintain their optimum pH.

9.

a) Give a brief account of lysosomal proteolysis.

b) Describe any five diseases resulting from mutations in intermediate filament genes.

10. Discuss which organelles are responsible for sorting, packaging, processing, and modifying proteins?

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Course Name	Master of Science (Zoology)
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Language	English

 

 

 

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