Biology > EXAM > BIOD 171 Microbiology Module 2 Review Questions. Metabolism and Enzymes/Portage Learning (All)

BIOD 171 Microbiology Module 2 Review Questions. Metabolism and Enzymes/Portage Learning

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What is cellular metabolism (ANS- Metabolism is a controlled set of biochemical reactions that occur in living organisms in order to maintain life. What is the primary function of enzymes and how... are they regulated? (ANS- Enzymes speed up chemical reactions. Most notably, the enzyme is not consumed during the reaction and can be used repeatedly by the cell. Enzymes can also be regulated by a cofactor such that in the absence of the proper cofactor, enzymes are inactive while in its presence enzymes are active. What is the difference between catabolism and anabolism? (ANS- Catabolism is the process of breaking down larger molecules into useful energy sources whereas anabolism is the building up or biosynthesis of macromolecules from smaller molecular units into larger complexes, most often associated with cellular growth and repair. ATP has the energy to __________ while ADP has the capacity to ________ energy. (ANS- Donate; Accept Chemotrophs can be subdivided into what two additional subgroups? (ANS- Chemotrophs, which acquire energy from preformed chemicals found in the environment, can be divided into either organotrophs (removing electrons from organic molecules such as glucose) or lithotrophs, which remove electrons from inorganic molecules. [Show More]

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