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IGNOU LSE-01 - Cell Biology

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IGNOU LSE-01 Code Details

  • University IGNOU (Indira Gandhi National Open University)
  • Title Cell Biology
  • Language(s) English
  • Code LSE-01
  • Subject Life Science
  • Degree(s) B.Sc.
  • Course Core Courses (CC)

IGNOU LSE-01 English Topics Covered

Block 1 - Introduction of Cell Biology

  • Unit 1 - Introduction to the Cell
  • Unit 2 - How Cells are Studied?
  • Unit 3 - Functional Ultra-Structure of the Cell
  • Unit 4 - Molecules of the Cell
  • Unit 5 - Macro-Molecules of the Cell

Block 2 - Cell Membranes and Enzymes

  • Unit 1 - Supra-molecular Structures and Cell Membranes
  • Unit 2 - Membrane Transport Processes
  • Unit 3 - Transport Molecules and Proton Pumps
  • Unit 4 - Enzymes: Specificity and Mechanism of Action
  • Unit 5 - Enzymes: Regulation and Control

Block 3 - Metabolism and Communication in Cells

  • Unit 1 - Energy Releasing Pathways
  • Unit 2 - Biosynthesis
  • Unit 3 - Nucleus: Structure and Function
  • Unit 4 - Protein Biosynthesis
  • Unit 5 - Chemical Signalling between Cells

Block 4 - Cell Division, Cell Movement and Differentiated Cell Types

  • Unit 1 - Cell Cycle and Mitosis
  • Unit 2 - Meiosis and Cell Division
  • Unit 3 - Cell Adhesion, Cell Movement and Extracellular Matrix
  • Unit 4 - Differentiated Animal Cell Types
  • Unit 5 - Differentiated Plant Cell Types
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IGNOU LSE-01 (January 2024 - December 2024) Assignment Questions

1. State one important function of each of the following: i) F1 particles ii) cytochrome b iii) Plasmodesmata iv) Myelin sheath v) Thrombocytes 2. Differentiate between the following pairs: i) Ion exchange and Affinity chromatography ii) m-RNA and t-RNA iii) Microtubules and Microfilaments iv) Phagocytosis and Pinocytosis 3. Write short notes on any of the following: i) Autoradiography ii) Structure of plasma membrane iii) Meiosis I iv) cAMP as second messenger in cell 4. Draw neat and well labelled diagrams of the following: i) A motor neuron ii) Watson and Crick model of DNA 5. Name the major macromolecules present in the cell. Describe any two methods of separating macromolecules on the basis of differences in their molecular weight. 6. a) Describe the components of fluid connective tissue in animals. b) What is meristem? Discuss its role in plants. 7. a) Explain enzyme kinetics b) Discuss the genetic control of enzyme activity with the help of operon model. 8. a) Describe the structure and function of nuclear envelope b) How is polypeptide chain synthesis initiated in prokaryotes? 9. Describe the formation of proton gradient caused by electron transfer in mitochondira, chloroplasts and bacteria. 10. Describe how glycolysis and TCA cycle are linked to each other.

IGNOU LSE-01 (January 2023 - December 2023) Assignment Questions

1. Write short notes on the following: (i) Autoradiography (ii) Gluconeogenesis (iii) Cytokinesis (iv) Phagocytosis  2. (a) Describe the structure of Golgi apparatus with the help of a well labelled diagram. List some of its important functions. (b) Explain how protein synthesis in prokaryotes different from that in eukaryotes.  3. Differentiate between following pair of terms: (i) Endocytosis and Exocytosis (ii) Microtubules and microfilaments (iii) DNA and RNA iv) Cilia and Flagella   4. (a) Describe the technique of column chromatography. (b) Explain the structure of nerve cell with the help of a well labelled diagram.  5. Explain in detail the tricarboxylic acid (TCA) cycle with the help of a well labelled diagram.  6. (a) Describe various phases of cell cycle. (b) Protein synthesis is regulated at various levels. Justify the statement giving a suitable explanation. 7. (a) Describe the molecular organization of cell membrane. (b) Explain in brief the chemiosmotic theory.  8. (a) Describe the structure and function of tRNA. (b) Describe double helix model of DNA.  9. Explain various stages of mitotic division with the help of suitable diagrams. 10. (a) What are allosteric enzymes? Describe their mechanism of action. (b) Describe bacterial chemotaxis.
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