Energy Acquisition Summary
What will be an ideal response?
-Organotrophy: organic compounds donate electrons
----fermentation: catabolism (electron acceptor:organic)(systems for energy acquisition-glycolysis and other catabolism)
----organic respiration (catabolism with inorganic or small organic electron acceptor)(electron acceptor: O2, and NO3-, SO42-, Fe3+, prother) (systems for energy acquisition: glycolysis and other catabolism TCA cycle, electron transport system)
-Lithotrophy: inorganic compounds donate electrons
----lithotrophy or chemoautotrophy (electron acceptor: O2 or NO3-) (systems for energy acquisition: electron transport system)
----methanogenesis (electron acceptor: CO2)(systems for energy acquisition: methanogenesis)
-Phototrophy: light absorption provides electrons
----photoautotrophy: light absorption drives CO2 fixation (systems for energy acquisition: Photosystem I or II)
----photoheterotrophy: catabolism with light absorption (examples of energy-yielding reactions: photolysis of H2S, HS-, or small organic molecules, light-driven H+ pump or Na+ pump) (systems for energy acquisition: photosystem I or II, Bacteriorhodopsin or proteorhodopsin)
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What will be an ideal response?
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If you skip a meal, which of the following
conditions would prevail?
a. Insulin levels would rise. b. Glucagon levels would rise. c. Glucose would be taken up by cells. d. Both insulin and glucagon levels would rise. e. Glucose would be converted to glycogen