 |
MSP811S - MICROBIAL SYSTEMATICS AND PROCESSES - 1st Opp - JUNE 2022 |
|
|
1 Page 1 |
▲back to top |
o
NAMIBIA UNIVERSITY
OF SCIENCE AND TECHNOLOGY
FACULTY OF HEALTH, APPLIED SCIENCES AND NATURAL RESOURCES
DEPARTMENT OF NATURAL AND APPLIED SCIENCES
QUALIFICATION: BACHELOR OF SCIENCE (HONOURS)
QUALIFICATION CODE: O8BOSC
LEVEL: 8
COURSE CODE: MSP811S
COURSE NAME: MICROBIAL SYSTEMATICS AND PROCESSES
SESSION: JUNE 2022
DURATION: 3 HOURS
PAPER: THEORY
MARKS: 120
EXAMINER(S)
MODERATOR:
FIRST OPPORTUNITY EXAMINATION QUESTION PAPER
Prof Percy Chimwamurombe
Dr Jean-Damascene Uzabakiriho
INSTRUCTIONS
1. Answer ALL the questions.
2. Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLE MATERIALS
Non-programmable Calculators
ATTACHMENTS
None
THIS QUESTION PAPER CONSISTS OF 2 PAGES (Including this front page)
1|Page
|
|
2 Page 2 |
▲back to top |
Section A:
[60 marks]
1. When a new organism is described, certain procedures take place before its
name and description become "official." Explain this process.
(5 marks)
2. Explain the defining features of Enteric bacteria.
(5 marks)
3. Explain how Wolbachia and Bacillus thuringiensis might be used as natural
insecticides against arthropods and insects, respectively.
(5 marks)
4. Archaeoglobus represent a metabolically transitional type of organism
that bridged the energy generating processes of Sulfur (S) production and
methanogenesis. Briefly explain?
(5 marks)
Compare and contrast Pyrodictium and Pyrolobus.
(5 marks)
Locate where the thermosome is found and explain its apparent role.
(5 marks)
Speculate on the possibility of life on other planets.
(5 marks)
Briefly discuss why Carl Woese is an important figure in microbial classification and
taxonomy?
(5 marks)
9. Determine the GC content of the molecule below?
(5 marks)
-CAAAAAGAAAAAAGCCAACCAAGGGCAAAAACGGCCACGA-
10. Multiple phylogenetic probes can be used on a single sample. Explain.
11. Explain why the presence of many Archaea has only been confirmed by
community sampling of rRNA genes and not by culture in the laboratory.
12. Explain why Nanoarchaeum is classified as a cell rather than a non-cell.
(5 marks)
(5 marks)
(5 marks)
Section B (Essays):
[60 marks]
1. Describe the diversity in the Proteobacteria.
2. “We only know about 5-10% of the bacteria out there”. Comment on this
statement in an essay highlighting the technological challenges in generating
data to name new bacteria microbes.
(30 marks)
(30 marks)
2|Page