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Sbt 418: Marine Microorganisms  Question Paper

Sbt 418: Marine Microorganisms  

Course:Bachelor Of Science

Institution: University Of Nairobi question papers

Exam Year:2010



UNIVERSITY OF NAIROBI
SCHOOL OF BIOLOGICAL SCIENCES
SBT 418: MARINE MICROORGANISMS 2009/2010
ANSWER ALL QUESTIONS
1. State four groups of microorganisms that are involved in the degradation of hydrocarbons. (2 marks)
2. What negative roles are associated with marine microorganisms in the environment? (4 marks)
3. Name four enzymes that are biotechnological products of marine bacteria. (2 marks)
4. Write short notes on the dissimilatory food chain. (3 marks)
5. Differentiate between Neuston and nektons as marine microbial habitats. (3 marks)
6. Differentiate between water currents and tides. (3 marks)
7. What is the water salinity situation in the following seas. (3 marks)
i. Subtropical latitudes
ii. Temperate oceans
iii. Polar oceans

8. How are marine microorganisms involved in the mobilization of heavy metals?(5 marks)




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