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Riboswitches are              .

                 includes the reactions that organisms use to degrade substances for energy and raw materials, as well as the reactions that use that energy and raw materials to build new molecules.

Which of the following would you want to use to determine the concentration of bacteria in a sample of water after it’s been processed at the wastewater treatment facility?  Note:  the water looks quite clear.

Which of the following statements is not true concerning the Entner-Doudoroff pathway?

Which of these temperature groups would most likely contain human pathogens?

E. coli can perform aerobic respiration, anaerobic respiration, and fermentation depending on environmental conditions. a.  Under which environmental conditions (ie., oxygen required; oxygen must not be present; oxygen presence doesn’t matter) would it perform each process? b.  What it the final/terminal electron acceptor for each process? c.  How is ATP produced (eg., photophosphorylation) in each process? (9 points, total) EXAMPLE:  glycolysis – oxygen presence doesn’t matter, NAD+ = electron acceptor, ATP is produced by substrate-level phosphorylation.

Beta-oxidation of a 10-carbon fatty acid produces              molecules of ATP.

Cells need enzymes because

Which of the below is a role of a viral envelope?

True / False Antibiotics are effective tools in treating and preventing viral infections.