BSc Biochemistry Sem I 2018 19 Dec 2018-19 BIO CHEM BIOCHEMISTRY PAPER II Question Paper - Mumbai University | munotes

Questions asked in this paper

• (ii) Figures to the right indicate full marks

1. Q1 A) State True or False: 4 marks
   • (i) Initial genetic material on the earth was in the form of clay genes
   • (ii) Theory of panspermia is also called as Abiogenesis
   • (iii) Duct billed platypus is a connecting link between reptiles and mammals
   • (iv) Natural selection depends on geographical location
2. Q1 B) Answer the following (any three) 9 marks
   • (i) Write in short about Big Bang theory
   • (ii) Justify- Gene mutations lead to the evolution of organism
   • (iii) Write a note on Fransesco Redi’s experiment
   • (iv) Write in brief on demerits of Darwinism
   • (v) Discuss about types of fossils giving suitable examples
   • (vi) Write a note on Hardy-Weinberg principle
3. Q1 C) Answer the following (any two) 12 marks
   • (i) Describe in detail Endosymbiont theory
   • (ii) Write in detail about chemical and anatomical similarities of different life
   • (iv) Elaborate on modern synthetic theory of evolution and its factors
4. Q2 A) State True Or False: 4 marks
   • (i) Bacteria are only existing prokaryotes
   • (ii) Chlorella and Spirogyra are used as model organisms in genetic engineering
   • (iii) Spindle microtubules are attached to centriole
   • (iv) The main function of nucleolus is production of ribosomes
5. Q2 B) Answer the following: (any three): 9 marks
   • (i) the help of a neat labelled diagram explain the prokaryotic cell
   • (ii) Distinguish between microtubules and microfilaments
   • (iii) Write a note on: structure of plant cell wall
   • (iv) With the help of a diagram, discuss the structure of mitochondria
   • (v) Discuss the functions of Golgi complex
   • (vi) State functions of lysosomes mentioning any two enzymes present in it
6. Q2 C) Answer the following: (any two) 12 marks
   • (i) Describe in detail, the process of reduction cell division
   • (ii) Elaborate on the types, structure and functions of endoplasmic reticulum in
   • (iii) Give detailed account of structure and functions of chloroplast. Support your answer with a neat labelled diagram
   • (iv) Justify: “Nucleus is the most important cell organelle which controls all the
7. Q3 A) State True or False: 4 marks
   • (i) All microorganisms have flagella
   • (ii) Cilia help in locomotion of all bacteria
   • (iii) The cell wall of Gram positive bacteria has thin peptidoglycan layer:
   • (iv) Halophiles can survive in high salt concentration
8. Q3 B) Answer the following: (Any three) 9 marks
   • (i) Explain in detail, the different placements of flagella in bacteria
   • (ii) Discuss the classification of bacteria based on their shape
   • (iii) Write in brief on nutrition in bacteria
   • (iv) Explain the different techniques employed for grouping bacteria into
   • (v) Write in brief principle and significance of staining
   • (vi) What is spore? Discuss the composition and the conditions of its formation
9. Q3 C) Answer the following: (Any two) 12 marks
   • (i) Describe in detail, citing suitable examples, various categories of the bacteria surviving in extreme environment. State the significance of the
   • (ii) Justify: Invention of Leeuwenhoek made remarkable contribution to the field of microbiology
   • (iii) Write an elaborative note on Gram staining stating the role of each constituent used for it
   • (iv) Elaborate on the principle and method of Capsule staining. State the functions of capsule
10. Q4 A) Define and explain (any five) 10 marks
11. Q4 B) Answer the following (any three) 15 marks
    • (i) Explain in detail the contribution of Pasteur in theories of origin of life
    • (ii) Justify: Man has evolved from primates
    • (iii) Elaborate on the ultrastructure of ribosomes and its biogenesis
    • (iv) Write an informative note on peroxisomes
    • (v) Describe the acid fast staining technique With the help of a diagram, explain the structure of a bacterial cell

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