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Could any of the following biochemical tests be used todifferentiate a member of

ID: 177078 • Letter: C

Question

Could any of the following biochemical tests be used todifferentiate a member of Archaea from a bacteria? - Acid and Gas Production from carbohydrates - Butanediol production from carbohydrates: theVoges-Proskauer Test - Nitrate reduction - Presence of Oxidase and/or Catalase - Presence of Urease - Indole test - Starh Hydrolysis - Sulfide Production - Citrate Utilization - Presence of Lysine decarboxylase Why or why not? What is needed to differentiate Archaea from bacteria? How are archaea and bacteria generally differentiated?

Explanation / Answer

Biochemical tests used to differentiate Archaea from bacteria STARCH HYDROLYSIS TEST, NITRATE BROTH are used.

DIFFERENCES

1. Unlike Bacteria, archaea cellwall do not contain peptidoglycon.

2. Archaea have different membrane lipid bonding compared to bacteria.

3. Like bacteria, archaea has 70S ribosomes but have a different shape

4. There are genetic differences.

5. Archaea has more complex RNA polymerases than bacteria.

6. Archea have different metbolic pathways than bacteria.

7. Archaea do not use glycolysis and kreb's cycle and are metabolically diverse.

8. Archaea survive in harsh and extreme environments but bacteria found in soil, organic matter etc.