MCB 3020|80 Exam 3 Quiz Questions Well Answered|2024
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Course
MCB 3020
Institution
MCB 3020
A common fate of NADH produced from TCA in prokaryotes is oxidation by ______________________.
A. Pyruvate
B. Terminal oxidase
C. Substrate oxidoreductases
D. Water - ️️C. substrate oxidoreductase
-used in electron transport chain
aldolase KDPG in ED - ️️makes pyruvate and ...
A common fate of NADH produced from TCA in prokaryotes is oxidation by ______________________. A. Pyruvate B. Terminal oxidase C. Substrate oxidoreductases D. Water - ✔ ✔ C. substrate oxidoreductase -used in electron transport chain aldolase KDPG in ED - ✔ ✔ makes pyruvate and 3P glyceraldehyde from 6P gluconate anabolism vs catabolism - ✔ ✔ anabolism: biosynthetic metabolism -building large biomolecules from small molecules -generally requires ener gy -entropy decreases, order increases -delta G is positive catabolism: energy -yielding metabolism -breaking of large molecules into smaller ones -generally releases energy -entropy increases, order decreases -delta G is negative -still require an initial input of energy autotrophic - ✔ ✔ obtain inorganic carbon source by assimilation of carbon dioxide Can glycolysis occur with/without oxygen? - ✔ ✔ both aerobically and anaerobically Can proteins and lipids be catabolized by EMP, PPP, and/or ED? - ✔ ✔ yes carbohydrate catabolism enzyme - ✔ ✔ glycosidase carbohydrate monomers - ✔ ✔ mono - and di -saccharides carbon tropism - ✔ ✔ heterotrophic and autotrophic Cellulose is a massive polymer composed of many repeated monomeric subunits of glucose. What is require d of prokaryotes for the metabolism of such a large polysaccharide? A.Secretion of glycosidases B.A special type IV transformasome system C.Growth rate must exceed death rate D.Secretion of proteases to cleave the polymer into monomers E.The presence of compatible solutes, such as K+ - ✔ ✔ A chemotrophic - ✔ ✔ obtain energy by usage/metabolism of chemicals -breaking and rearranging bonds resulting in an energetically favored product Coupling of anabolic and catabolic reactions - ✔ ✔ catabolic reaction s provide energy and metabolic precursors for anabolic reactions cycle of growth: two alternating phases - ✔ ✔ growth and stasis
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