Explain how the enteric bacteria can be differentiated by the type and proportion of fermentation products produced by the anaerobic fermentation of glucose
What will be an ideal response?
Answer: While glucose is fermented by all enterics, the two main patterns of products formed are called the 2,3-butanediol fermenters and the mixed acid fermenters. Butanediol, ethanol, CO2, and H2 are the primary products of 2,3-butanediol fermentation, and small quantities of acids are also formed. Mixed acid fermentation produces considerably more acetic, lactic, and succinic acids and only small quantities of ethanol, CO2, and H2.
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What is the term for metabolic pathways that release stored energy by breaking down complex molecules?
A) anabolic pathways B) catabolic pathways C) fermentation pathways D) thermodynamic pathways E) bioenergetic pathways
Which of these organisms is able to use several body surfaces, such as gills, skin, and lungs, for respiration?
A. amphibians B. humans C. birds D. reptiles E. None of these are correct.
If you were a very thirsty cell, which process would you use to take in some nutrients secreted by one of your neighbors?
A. receptor-mediated endocytosis B. exocytosis C. phagocytosis D. pinocytosis
What is the outstanding characteristic of the Kingdom Fungi?
A) All members are photosynthetic. B) Members absorb dissolved organic matter. C) Members absorb dissolved inorganic matter. D) All members are microscopic. E) All members are macroscopic.