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

Questions asked in this paper

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1. Q1 All questions are compulsory. Choice is internal
   • ii) Figures to the right indicate full marks
2. Q1 (A) State True or False: 4 marks
   • (i) Theory of Panspermia states that life originated on earth from asteroids (i1) Darwin gave the endosymbiotic theory organs are the ones with different functions but similar structure
   • (iv)RNA world hypothesis states that RNA was the first genetic material
3. Q1 (B) Attempt the following: (Any three) 9 marks
   • (i) Compare and contrast: Gene flow and genetic drift (i1) Define and explain: Hardy-Weinberg principle a note on contributions of Louis Pasteur on the understanding of origin of life
   • (iv) Briefly explain: 'RNA
   • (v) What does it mean by retrograde evolution? in brief: Protenoids
4. Q1 (C) Attempt the following: (Any two) 12 marks
   • (i) Write a detailed note on criticism of Darwin's theory of natural selection (i1) Give an account of different types of fossils (i11)Discuss in detail the theory of spontaneous generation and chemical evolution in detail the Urey-Miller experiment
5. Q2 (A) State True or False: 4 marks
   • (i) Endoplasmic reticulum is called traffic police of the cell
   • (ii) Chlorophyll is present in the stroma of chloroplast
   • (iii)Mitosis is called. reductional division
   • (iv)Microtubules and microfilaments are synonyms
6. Q2 (B) Attempt the following: (Any three) 9 marks
   • (i) Explain in brief the structure of cell wall Justify: Yeast is a link between prokaryotes and eukaryotes (i1i)Discuss the different stages of Mitosis
   • (iv) Name the organelle which is referred to as digestive machinery of cell. Write a short note on the same
   • (vi) Write the functions associated with Golgi bodies
7. Q2 (C) Attempt the following: (Any two) 12 marks
   • (i) Write a detailed note on structure and functions of mitochondria Which human cells undergo meiosis? Explain the different phases of meiosis in detail a detailed account of plastids
   • (iv) Discuss the Singer-Nicholson model of plasma membrane
8. Q3 (A) State True or False: 4 marks
   • (i) Chain of rod shaped bacteria is called as streptobacilli (i1) Gram negative bacteria have thick peptidoglycan layer (11i)Robert Hooke is known as Father of medical microbiology
   • (iv) Bacteria that grow in high salt concentration are known as magnetotactic
9. Q3 (B) Attempt the following: (Any three) 9 marks
   • (i) Compare and contrast: Spore and Cyst Discuss the classification of bacteria based on flagellar arrangement ‘Bacteria have varied temperature requirements’ the importance of taxonomy of microorganisms
   • (v) Describe the bacterial cell wall composition
   • (vi) Mention the primary stain in lipid staining. State the role of each
10. Q3 (C) Attempt the following: (Any two) 12 marks
    • (i) Explain the principle of Gram staining. Also, give the role of each stain
    • (ii) Describe the morphology of the structures present external to the bacterial cell wall
    • (iii)Elaborate on the contributions of Leeuwenhoek, and Pasteur to the field of microbiology
    • (iv)Classify bacteria based on their morphology and shape
11. Q4 (a) Define and explain: (Any five) 10 marks
12. Q4 (b) Write elaborate notes on: (Any three) 15 marks
    • (i) Negative Staining
    • (ii) Classification based on nutritional requirement
    • (vi) Ultrastructure of Nucleus

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