Cell Biology Past Paper PDF - Maulana Abul Kalam Azad University of Technology, 2023-2024

CS/B.Sc(N)/ODD/SEM-1/1348/2023-2024/I131 MAULANA ABUL KALAM AZAD UNIVERSITY OF TECHNOLOGY, WEST BENGAL Paper Code : CBT102/CGN102/CMB-102/CMc102 Cell Biology UPID...

CS/B.Sc(N)/ODD/SEM-1/1348/2023-2024/I131 MAULANA ABUL KALAM AZAD UNIVERSITY OF TECHNOLOGY, WEST BENGAL Paper Code : CBT102/CGN102/CMB-102/CMc102 Cell Biology UPID : 001348 Time Allotted : 3 Hours Full Marks :70 The Figures in the margin indicate full marks. Candidate are required to give their answers in their own words as far as practicable Group-A (Very Short Answer Type Question) 1. Answer any ten of the following : [ 1 x 10 = 10 ] (I) The semiautonomous organelle in the cell is______________. (II) What are the major membrane lipids ? (III) β-adrenergic receptor is an example of which class of receptor? (IV) Which type of endoplasmic reticulum is important in the synthesis of lipids? (V) The concentration of Cyclin varies during the cell cycle? (Yes / No) (VI) Which type of fibre in the cytoskeleton helps in chromosome movement? (VII) F-actin is made by the association of which monomer units? (VIII) The enzyme oxidative phosphorylation are present in inner mitochondrial membrane is true or false? (IX) Name the microorganism which lacks cell wall. (X) If your cell has 24 chromatids, what will be the number of a chromosome at each pole after anaphase 1? (XI) Write a negative regulator of Cdc-20? (XII) Why G-protein-coupled receptors are called 7TM receptor? Group-B (Short Answer Type Question) Answer any three of the following : [ 5 x 3 = 15 ] 2. What are mitochondria? What is the basic morphology of these organelles and in which cells can they be found? 3. Write the difference between Smooth And Rough Endoplasmic Reticulum? 4. Why lysosomes are know as “the cleaners” of the cell waste? Which are the cell organelles that participate in the cell division and in the formation of cillia and flagella of some eukaryotic cells? 5. What are the main structures within the cell nucleus? Concerning the presence of nucleus- what is the difference between animal and bacterial cells? 6. What is Apoptosis? Give its importance. Group-C (Long Answer Type Question) Answer any three of the following : [ 15 x 3 = 45 ] 7. (a) Give an account of the structure of a typical animal cell. (b) ‘Structural complexity of eukaryotes is reflected in their subcellular structures’ – discuss. 8. (a) Discuss the organization of rough and smooth endoplasmic reticulum. (b) Discuss their functions. 9. (a) What are the functions of a capsule in bacterial morphology? (b) Mention few distinctive features of prokaryotic cells. (c) Mention the unique features of cell membrane ,cell wall and gene structures of Archaebacteria. 10. (a) What is cell cycle? Briefly the stages of cell cycle.Write about longest stage of cell cycle. Define G0 stage with its significance. Explain the role of p53 in cell cycle. (b) Describe in briefly the stages of cell cycle. (c) Describe in brief longest stage of cell cycle. (d) Define G0 stage with its significance. (e) Explain the role of p53 in cell cycle. 11. (a) What is the role of nucleus in protein synthesis? 1/2 (b) What is nucleolus and define it’s function. (c) Describe structure of nuclear pore. (d) Give the mechanism of transport across the nuclear pore. *** END OF PAPER *** 2/2