Download wk7 tutorial answers

SUGGESTED ANSWERS TO TUTORIAL QUESTIONS (WK 7)
Role of microbes in industry:
1. In food and beverages e.g. yeast
2. In waste management e.g. bacteria and fungi
3. In biotechnology e.g bacteria and phages
4. In bioterrorism e.g anthrax spores
5. In agriculture e.g. nitogen-fixing bactetria
6. In medicine and phrmaceuticals e.g. antibiotics
7. In textiles e.g dyes from bacteria, algae
8. In marine navigation e.g. protists
Linneaus classification of the following microbes: (Domain, Kingdom, Phylum,
Class, Order, Family, Genus, Species)
1. That turns milk sour – yogurt (Prokaryote, Bacteria, Firmicutes, Bacilli,
Bacilliales, Lactobacilliaceae, Bacillus, bulgaricus); or Streptococcus
thermophiles (Staphylococcaceae) also turns milk sour.
2. That ferments sugar (Eukaryote, Fungi, Ascomycota, Saccharomycetes,
Saccharomycetales, Saccharomycetaceae, Saccharomyces cerevisiae)
3. That causes food poisoning (Prokaryote, Bacteria, Proteobacteria, Gamma
proteobacteria, Enterobacteriales, Enterobacteriaceae, Escherchia coli)
4. That produces galls in the roots of plants. (Prokaryote, Bacteria,
Proteobacteria, Alphaproteobacteria, Rhizobiales, Rhizobiaceae,
Agrobacterium tumefaciens)
5. That carries out nitrification. (Prokaryote, Bacteria, Proteobacteria,
Alphaproteobacteria, Rhizobiales, Bradyrhizobiaceae, Nitrobacter
hamburgensis)
6. That is used in genetic recombination in plants. (Prokaryote, Bacteria,
Proteobacteria, Alphaproteobacteria, Rhizobiales, Rhizobiaceae,
Agrobacterium tumefaciens)
7. That is used in the preparation of antibiotic. (Eukaryote, Fungi,
Ascomycota, Eurotiomycetes, Eurotiales, Trichomaceae, Penicillum
chrysogenum)
8. That is used as diatomaceous earth in organic farming. (Eukaryota,
Stramenopila, Chrysophyta [algae], Bacillariophyceae, Diatomaceae,
Stephanodiscus alpinus)
9. That were used as limestone for building the Egyptian pyramids.
(Eukaryote, Protozoa, Cercozoa [Foraminifera], Globigerinacea,
Globigerinales, Globigerinaceae, Globigerinoides ruber)
10. Is an edible mushroom. (Eukaryote, Fungi, Basidiomycota,
Agaricomycetes, Agaricales, Agaricaceae, Agaricus bisporus)