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In: Biology

Write notes on two of the following: 1. Cyanobacteria 2. Pseudomonas aeruginosa 3. The biochemistry of...

Write notes on two of the following: 1. Cyanobacteria 2. Pseudomonas aeruginosa 3. The biochemistry of acetic acid production 4. The purple sulphur bacteria

Solutions

Expert Solution

cyanobacteria are aquatic and photosynthetic ,that is why they live in waterand can manufacture their own food. because they are bacteria .they are quite small and usually unicellular though they often grow in colonies large enough to see. they have the distinction of being the oldest known fossils, more than 3.5 billion year old ,in fact it may surprise you then to know the cyanobacteria are still around.

because they are photosynthetic and aquatic ,cyanobacteria are often called"blue green algea". this name is convinient for talking about organisms in waterthat make their own food,but does not reflect any relationship between cyanobacteria and other algea.

pseudomonas aeruginosa is a gram negative ,rod shaped, asporogenous,and monoflagellated bacterium that has an icredible nutritional versatility. it is a rod about 1-5 micrometer long and about half micrometer wide . it is an bligate respirer, using aerobic respiration as its optimal metabolism although can also respire anaerobically on nitrate or other alternative electron acceptor.


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