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BIOL 215 Midterm 2 Exam Questions and Answers 100% Pass Rate

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  • BIOL 215
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  • BIOL 215

BIOL 215 Midterm 2 Exam Questions and Answers 100% Pass Rate What are the two major pathways of metabolism? - Catabolism and anabolism What is catabolism? - - the breakdown of larger molecules into smaller products - exergonic (releases energy) What is anabolism? - - the synthesis of larger mo...

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  • January 13, 2025
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  • 2024/2025
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  • BIOL 215
  • BIOL 215
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EmilyCharlene
BIOL 215 Midterm 2 Exam Questions
and Answers 100% Pass Rate


What are the two major pathways of metabolism? - ✔✔Catabolism and anabolism


What is catabolism? - ✔✔- the breakdown of larger molecules into smaller products


- exergonic (releases energy)


What is anabolism? - ✔✔- the synthesis of larger molecules from smaller products


- endergonic (requires energy)


How do enzymes work? - ✔✔- have an active site for substrates to attach to


- creates enzyme-substrate complex


- enzyme breaks substrate into its products


What is induced fit? - ✔✔The enzyme adjusts to fit the substrate when it binds to the

active site


What factors influence enzyme activity? - ✔✔temperature, pH, substrate concentration,

inhibitors




Emily Charlene, All Rights Reserved © 2025 1

, What are activators? - ✔✔Chemicals that bind to the allosteric site to activate the

enzyme


What is the allosteric site? - ✔✔- site on the enzyme where an activator molecule binds


- changes active site allowing substrate to bind


What are inhibitors? - ✔✔substances that block an enzymes activity


Explain competitive inhibition - ✔✔inhibitor competes with substrate for the same

active site on an enzyme


Explain non-competitive inhibition - ✔✔- inhibitor does not compete for same active

site


- binds to allosteric site


- changes shape of active site and prevents substrate from binding


What are redox reactions? - ✔✔- transfer of electrons from a donor to an acceptor


- donor loses electron = oxidized


- acceptor gains electron = reduced


What are three important electron carriers? - ✔✔NAD+, NADP+, FAD


What is substrate level phosphorylation? - ✔✔Enzyme-mediated transfer of a

phosphate from a substrate to ADP to produce ATP




Emily Charlene, All Rights Reserved © 2025 2

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