BSc Biochemistry Sem I 2017 18 2017-18 Bio Chem Biochemistry II Question Paper - Mumbai University | munotes

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1. Q3 Draw structures and diagrams wherever necessary:
2. Q1 A) State true or false: 4 marks
   • i. Lamarck’s theory suggests that the chemical evolution occurred before the actual life
   • ii. The early gas cloud in primitive earth was rich in oxygen
   • iii. Infectious diseases in humans is one of the potent agent of natural selection
   • iv. can be used for fossil bearing rocks
3. Q1 B) Answer the following: (any three) 9 marks
   • i. Nature of fossil
   • iii. Theory of abiogenesis
   • iv. Properties of protenoid microsphere
   • v. Formation of first cell
4. Q1 c) Answer the following: (any two) 12 marks
   • i. Discuss the theory of natural selection in detail
   • ii. Discuss Oparin hypothesis and explain the experimental support given by Miller with the help of neat
   • iii. Discuss biochemical evidences to prove evolution of
   • iv. Justify-Primitive earth’s atmosphere was reducing
5. Q2 A) State true or false: 4 marks
   • i. and macroscopic eukaryotes
   • ii. Cellulose and lignin are the main constituents of the primary cell wall
   • iii. Polynucleate cells of animals are coenocytes
   • iv. Inner membrane of mitochondria is folded into cisternae
6. Q2 B) Answer the following: (any three) 9 marks
   • i. Give diagrammatic representation of the structure of prokaryotic cell Write in brief on nucleolus and its functions
   • iii. Explain the membrane asymmetry of the plasma membrane with the help of a diagram
   • iv. Discuss the structure of Golgi apparatus
   • v. Mitochondria are semiautonomous organelles. Explain Write in short on morphology of ribosomes
   • Q.P. Code : 24298 Answer the following: (any two) 12
   • i. Justify-Lysosomes contain hydrolytic enzymes and play diverse role in cellular functions
   • ii. Compare and contrast: smooth and rough endoplasmic reticulum
   • iii. Write in detail about ultrastructure of chloroplasts. Support your answer with well labelled diagram
   • iv. Elaborate on cell division in vegetative cells
7. Q3 A) State true or false: 4 marks
   • i. Ca-DPA complex is present in capsule
   • ii. Safranin is used as mordant in Gram’s staining
   • iii. Agar is added to nutrient medium to provide carbon source
   • iv. Xylol orange is used in acid fast staining
8. Q3 B) Answer the following: (any three) 9 marks
   • i. What is the principle of lipid staining and role of Sudan Black B dye in the same?
   • iii. Write a detailed note on endospore staining
   • iv. Describe in detail bacterial taxonomy
   • v. Discuss the composition of the bacterial cell wall
   • vi. Justify: “Bacteria have varied nutritional requirements.”
9. Q3 C) Answer the following: (any two) 12 marks
   • i. Discuss the classification of bacteria based on staining reactions
   • ii. What are the contributions of Leeuwenhoek and Pasteur to the field of microbiology?
   • iii. Write a detailed note.on bacterial classification based on their optimum temperature requirement
   • iv. Justify: “Capsule staining is also known as negative
10. Q4 A) Define and Explain: (any five) 10 marks
    • (i) Variation
    • (ii) Petrifaction
    • (vi) Chemotrophs
    • (vii) Homology Answer the following: (any three) 15
    • i. Differentiate between a) genetic drift and natural selection
    • b) RNA world and protein world
    • ii. Elaborate on the causes of imperfection of fossil record
    • iii. Elaborate on the cytoskeleton and its major constituents. Add a note on their functions
    • iv. Give detailed account of the comparison of prokaryotic and eukaryotic cell
    • v. With the help of diagram(s), describe the morphology and arrangement of flagella in bacteria Write an elaborate note on bacterial morphology, with special emphasis on:

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