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BS24810 Examination: Aquatic & Terrestrial Microbial Ecology - Semester 2, 2011, Exams of Microbiology

A past examination paper for the bs24810 aquatic & terrestrial microbial ecology course, semester 2, 2011. The exam consists of four questions, each carrying equal marks, and covers topics such as nitrification and denitrification in the terrestrial nitrogen cycle, microbial biodiversity using dna-based methods, the role of aero-aquatic fungi in decomposition, and the impact of soil animals on decomposition in terrestrial ecosystems. Additional topics include nutrient limitation and dominant microbes in oceanic regions, and the faster decomposition in tropical rainforests compared to tundra ecosystems, with a focus on fungal exoenzymes in the decay of wood or leaf litter.

Typology: Exams

2011/2012

Uploaded on 11/29/2012

kamin
kamin 🇮🇳

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ARHOLIADAU EXAMINATIONS
SEMESTER 2 EXAMINATIONS 2011
IBERS (BIOLOGICAL SCIENCES)
BS24810 AQUATIC & TERRESTRIAL MICROBIAL ECOLOGY
TIME ALLOWED: TWO HOURS
ANSWER FOUR QUESTIONS. ALL QUESTIONS CARRY EQUAL MARKS
1. Discuss the role of nitrification and denitfirifcation in the context of the terrestrial nitrogen
cycle
2. Using named examples, discuss how the application of DNA-based methods has
contributed to our understanding of microbial biodiversity.
3. Assess the role of aero-aquatic fungi in the decomposition of leaf litter in streams and how
they interact with other decomposers.
4. Analyse the role played by soil animals in the process of decomposition in terrestrial
ecosystems.
5. How does nutrient limitation affect which microbes are dominant in the surfaces waters of
different oceanic regions
6. Why is decomposition so much faster in a tropical rainforest than in a tundra ecosystem?
7. How do fungi in the decay of wood or leaf litter. Include details of fungal exoenzymes
which mediate lignocellulose depolymerisation
END

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Page 1 of 1

ARHOLIADAU EXAMINATIONS

SEMESTER 2 EXAMINATIONS 2011

IBERS (BIOLOGICAL SCIENCES)

BS24810 AQUATIC & TERRESTRIAL MICROBIAL ECOLOGY

TIME ALLOWED: TWO HOURS

ANSWER FOUR QUESTIONS. ALL QUESTIONS CARRY EQUAL MARKS

  1. Discuss the role of nitrification and denitfirifcation in the context of the terrestrial nitrogencycle

2.contributed to our understanding of microbial biodiversity. Using named examples, discuss how the application of DNA-based methods has

  1. Assess the role of aero-aquatic fungi in the decomposition of leaf litter in streams and howthey interact with other decomposers.
  2. Analyse the role played by soil animals in the process of decomposition in terrestrialecosystems.
  3. How does nutrient limitation affect which microbes are dominant in the surfaces waters ofdifferent oceanic regions
  4. Why is decomposition so much faster in a tropical rainforest than in a tundra ecosystem?
  5. How do fungi in the decay of wood or leaf litter. Include details of fungal exoenzymeswhich mediate lignocellulose depolymerisation

END