Exam 13: Metabolic Diversity of Microorganisms

The serine pathway and ribulose monophosphate pathway can both be used by ________ as a way to incorporate carbon into biomass.

Chlorosomes are present in purple bacteria but absent in green sulfur and nonsulfur bacteria.

Under what circumstances does oxygenic photophosphorylation use non-cyclic photophosphorylation and when does it use cyclic photophosphorylation? Also describe what occurs during each process.

Propose why it would be advantageous for a photosynthetic microorganism to have more than one type of chlorophyll or bacteriochlorophyll.

One result of the oxidation of reduced sulfur compounds is a rise in the pH of the medium.

In photosynthesis,NADH and NADPH are produced from NAD⁺ and NADP⁺ by

Which group of microorganisms would the Calvin cycle LEAST likely be found in?

A monooxygenase can always be distinguished from a dioxygenase by incorporating only one oxygen atom from O₂ into the substrate rather than both.

In what types of organisms are carboxysomes found and what advantage do they provide for a cell?

Describe what occurs when elemental sulfur is provided externally as an electron donor and how energy is obtained.

The process by which electrons from the quinone pool are forced against the thermodynamic gradient to reduce NAD⁺ to NADH is called reverse

Reductive dechlorination involves chlorinated organic compounds serving as electron donors and releasing the chloride in inorganic forms.

Which metabolic strategy's existence suggests rapid growth is NOT always the best strategy to survive in the environment?

Explain the Calvin cycle process that produces a full molecule of glucose and regenerates the ribulose bisphosphate molecule.

At some of the lowest light concentrations,________ can still grow well due to their ________,which effectively harvest photons for energy.

"Special pair" is the name given to the ________ in the photochemical complex of the purple bacteria.

The only organisms that perform photosynthesis are ones that produce some form of

How is ATP made by an acetogen during CO₂ fixation?

The Calvin cycle provides autotrophs the ability to convert inorganic carbon into biomass and generate energy during this process.

Carotenoids are hydrophobic accessory pigments and vary widely in the color they can absorb.