BSc Biochemistry Sem V 2018 19 2018-19 TYBIO CHEM Biochemistry II Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 All the questions are compulsory. Choice is internal
2. Q2 Figures to the right indicate full marks
3. Q3 All questions carry equal marks
4. Q1 A) in the blanks: (any three) 3 marks
   • i) Atmospheric concentration of carbon dioxide is about ppm
   • ii) The temperature range in mesosphere is iil) Ozone is present in
   • iv) is source of sulphur oxides and explain any one: 3
5. Q1 Enlist the minor components comprising the atmosphere li) What is the Van Allen Belt? Write a short note on any one: 6 li) Different regions of the atmosphere Attempt any one: 8
6. Q1 In detail discuss hydrocarbons and photochemical smog as air li) Oxygen and its ionic species of oxygen as well as sulphur dioxide lead to chemical and photochemical reactions in the atmosphere Elaborate on the same
7. Q2 A) the blanks: (any three) 3 marks
   • i) is a very toxic form of mercury il) % of earth’s water supply is unfit for human consumption
   • iii) The solubility of oxygen with increasing temperature
   • iv) Evaporation converts form of water to gaseous form Define and explain the term any one: 3
8. Q1 Flocculation
9. Q2 C) Write a short note on any one: Answer any one: 8 6 marks
10. Q1 Give a detailed account of oil spills li) Elaborate on heavy metal pollution
11. Q3 A) Fill in the blanks: (any three) 3 marks
    • i) Permissible value of noise in residential
    • ii) Pests can be killed by use of a ili) Weathering of rocks leads to the formation of
    • iv) Nitrobacter converts to nitrate
12. Q3 B) Answer in brief any one: 3 marks
13. Q1 Define and explain: Decibel li) How is soil formed?
14. Q3 C) Answer any one: 6 marks
    • i) Write a note on Classification of noise li) Describe the biogeochemical cycle by which nitrogen is converted into various chemical forms
15. Q3 D) in detail any one : 8 marks
16. Q1 Discuss the harm pesticides and herbicides can cause to soil li) Elaborate on many people complaining of various ill-health conditions arising due to noise pollution in cities across India
17. Q4 A) Fill in the blanks: (any three) 3 marks
    • i) is a pollutant free energy source il) Asbestos is used in industry
    • iii) is added to low density plastic
    • iv) Chemiluminescence is used to monitor
18. Q4 B) Define and explain the following any one:
    • ii) SNG Write short notes on any one of the following: 6 li) Approaches to monitor water any one of the following : 8
19. Q1 Elaborate on the energy resources of the future li) Write a descriptive note on biopolymers and plastics being major
20. Q5 A) Write brief notes on: 16 marks
21. Q1 Composition of atmosphere
    • i) Particulate matter in atmosphere li) Chlorination for water treatment iil) Methods used for measurement of noise
    • iv) Coal and coke
22. Q5 B) State TRUE or FALSE: (any four) 4 marks
23. Q1 Ozone hole is present over Africa li) Troposphere is the region of atmosphere closest to the earth surface lil) Humus is dark organic material in soils, produced by the decomposition of vegetable or animal matter and essential to the fertility of the earth
    • iv) Human ear is susceptible to sound of 2 Hz Sulphur oxides lead to acid rain V1) Remote sensing has no application in pollution control

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