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Important Questions for "Cell Biology":

[1]

  1. Write a detailed note on Pleuro Pneumonia Like Organisms.
  2. Write a detailed note on Chloroplast.
  3. Write a detailed well-labeled diagram of Lysosome and Peroxisome.

[2]

  1. What do you mean by membrane system? Describe the same with reference to Endoplasmic Reticulum (ER) and Golgi Complex.
  2. Discuss the events taking place during interphase in cell cycle.
  3. Describe the stages of meiosis with particular emphasis on Prophase-I.

[3]

  1. Write detailed notes on the following: (i) Structure of muscle cell (ii) Prophase I of meiosis
  2. Write notes on the following: (i) Transcription (ii) Fluid mosaic model of plasma membrane (iii) Functions of Golgi bodies
  3. How do cancer cells differ from normal cells? Discuss in detail.

[4]

  1. Describe the ultrastructure of a plant cell with well-labelled diagram.
  2. Write detailed notes on structural differences between prokaryotic and eukaryotic cells and differences between normal and cancer cells.
  3. Discuss, with suitable diagrams, the various stages of prophase I of meiotic cell division.

[5]

  1. Describe the events during the cell cycle with the help of a diagram. Mention cell cycle regulation in brief.
  2. Describe the structure of an animal cell along with important functions of components. How is it different from a plant cell?
  3. Describe the process of biosynthesis of mitochondria and chloroplasts. Highlight the differences (preferably with diagrams).

[6]

  1. Describe the structure of ribosome as observed under electron microscope giving details of ribosomal protein and ribosomal RNA.
  2. Write short notes on the following: (a) Functions of endoplasmic reticulum (b) Inositol phosphate (c) Difference between normal and cancer cell.
  3. Describe in detail the process of protein synthesis in prokaryotes.

[7]

  1. What is cell? Discuss about the cell theory and give a detailed classification of cell types within an organism.
  2. Write notes on: (a) Nucleus (b) Peroxysomes.
  3. Describe the fluid mosaic model of plasma membrane.

[8]

  1. Write a detailed account on Endoplasmic reticulum.
  2. Write notes on the following: (a) Functions of cell wall (b) Functions of plasma membrane.
  3. Explain the various levels of organization with examples.

[9]

  1. Discuss cell as a basic unit of living system.
  2. Give a detailed ultrastructure of any four of the following: Golgi bodies, Endoplasmic reticulum, Ribosomes, Cytoskeletal, Mitochondria, Chloroplast.
  3. Write short notes on the following: Capsule in Bacteria, Classes of Pilli.

[10]

  1. Write detailed notes on denaturation and renaturation of proteins, and polysaccharides and their types.
  2. Differentiate between enzymes and coenzymes. Discuss the factors that affect enzymatic reactions.
  3. Describe the basic principles involved in chromatography. Discuss its role in plant biology.

[11]

  1. In Z-DNA, one complete turn of helix is?
  2. A major site for synthesis of lipids is?
  3. How many Barr bodies will be seen in the nuclei of somatic cell of female with XXXX abnormal genetic constitution?

[12]

  1. Haemophilia A is due to lack of?
  2. Which one is the example of X-linked dominant gene inheritance?
  3. Krebs cycle reactions take place in?

[13]

  1. Cytochrome oxidases are found where?
  2. The distance between two base pairs of a DNA strand is?
  3. Which organelle is responsible for lysosome formation?

[14]

  1. Describe the operon model for regulation of gene activity.
  2. Define genetic material and briefly describe its properties. Describe one experiment which clearly showed that DNA is the genetic material.
  3. Describe Watson and Crick model of DNA structure. Discuss the differences between DNA and RNA.

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