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Important Questions for "Cell Biology":

[1]

  1. Write a well-labeled diagram of the Eukaryotic cell.
  2. Differentiate between Thylakoids and Cisternae.
  3. Write a note on Tight Junctions.

[2]

  1. What do you mean by cell signaling? Give mode of working of cAMP in transduction of cell signals.
  2. What is Apoptosis? What types of cellular and physiological changes occur during the process.
  3. What are glycoproteins and glycolipids? Discuss their structure and function within the cell.

[3]

  1. Differentiate between the following terms: (i) Anaphase I and Anaphase II of meiosis (ii) Prokaryotic cell and Eukaryotic cell (iii) SER and RER
  2. How do cancer cells differ from normal cells? Discuss in detail.
  3. Write very short answers for the following: (i) Difference between plant cell and animal cell (ii) Peroxisomes (iii) Nerve cells (iv) Functions of chloroplast

[4]

  1. Describe the ultrastructure of a plant cell with well-labelled diagram.
  2. What is central dogma? Describe the role of DNA and RNA in protein synthesis.
  3. Write notes on differences between meiotic and mitotic cell division, differences between transcription and translation, and ultrastructure and function of Golgi complex.

[5]

  1. Describe the events during the cell cycle with the help of a diagram. Mention cell cycle regulation in brief.
  2. What is cell-cell communication? Describe the cell adhesion molecules in detail with examples.
  3. What is the cytoskeletal system? Describe all the components of cytoskeleton in detail.

[6]

  1. Describe the structure and function of chromosome.
  2. Write detailed notes on the following: (a) Differences in prokaryotic and eukaryotic cell giving suitable diagram. (b) Differentiate between metaphase-I and metaphase-II giving suitable diagram.
  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. Describe the different levels of cell organization in an organism.
  3. Write notes on: (a) Cilia and Flagella (b) Microtubules.

[8]

  1. Write short notes on the following: (a) Cilia (b) Actin (c) Nuclear pore (d) Pilli.
  2. Write short notes on the following: (a) Fluid mosaic model of plasma membrane (b) Lysosomes.
  3. Explain the structure of nuclear membrane.

[9]

  1. Who gave Fluid Mosaic Model? Comment upon different models of cell membrane structure.
  2. Write down the main features of prokaryotic cell wall. Differentiate prokaryotic cell wall from the cell wall of eukaryotic microbes.
  3. Describe the structure of bacterial flagella. Comment upon movement in bacteria.

[10]

  1. Give a brief account of the various known levels of protein structure.
  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. TAY-SACHS disease is caused by?
  2. Commonly known as suicidal bag of the cell?
  3. Haemophilia occurs due to mutation on X-chromosome?

[12]

  1. Omnis cellula e cellula was proposed by?
  2. Elementary particles present on the inner membrane of mitochondria is also known as?
  3. In how many cells, the meiotic division has taken place if the total number of spermatids produced are 32?

[13]

  1. Number of autosomes in a normal human sperm is?
  2. Which process is referred to as cell drinking?
  3. Gene for color blindness is located on which chromosome?

[14]

  1. What is genetic code? Discuss the various properties of genetic code giving suitable examples.
  2. What is Genomics? Discuss its role in plant breeding.
  3. Write detailed notes on the following: Structure and functions of cell wall, Structure and function of Golgi complex.

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