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Microbiology Exam 2 Study Guide – Cscc Questions And Answers With Verified Solutions Already Passed!!!
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Microbiology Exam 2 Study Guide – Cscc Questions And Answers With Verified Solutions Already Passed!!!

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  • October 19, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • what links g
  • microbiology exam 2 study guide cscc questions a
  • why do enzymes need to be regulated
  • what is the difference between competitive and non
  • in anabolism why is the generation of precursor me

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  • Cscc

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Microbiology Exam 2 Study Guide –
Cscc Questions And Answers With
Verified Solutions Already Passed!!!
why do enzymes need to be regulated? - ANSWER✔✔for the conservation of
energy their concentration in cell increases or decreases in response to substrate
levels


What is the difference between competitive and non-competitive inhibition? -
ANSWER✔✔In competitive inhibition, the inhibitor binds directly to the active
site, preventing the substrate from accessing it. In non-competitive inhibition, the
inhibitor binds elsewhere and either changes the shape of the active site, or steals
the metal ions of the enzyme.


What are precursor metabolites? - ANSWER✔✔All precursor metabolites are
intermediates of the Glycolytic pathways and the TCA cycle. These pathways are
thus often referred to as the central metabolic pathways. A
chemoogranoheterotroph thus generates its precursor metabolites as it generates
ATP and reducing power using the central metabolic pathways!


In anabolism why is the generation of precursor metabolites so important? -
ANSWER✔✔Carbon skeletons are used as starting substrates for biosyntehtic
pathways


how much ATP is generated from glycolysis? - ANSWER✔✔2 net ATP


How much ATP is consumed per mole of glucose that undergoes glycolysis? -
ANSWER✔✔2 moles are consumed

, What links glycolysis with the TCA cycle? - ANSWER✔✔pyruvate
dehydrogenase


pyruvate dehydrogenase - ANSWER✔✔junction between glycolysis and citric
acid cycle, turns pyruvate into acetyl CoA


What is the purpose of the TCA cycle? - ANSWER✔✔oxidizes acetyle-COA to
Carbon dioxide and captures potential energy as NADH, FADH2, and ATP


what is produced in TCA cycle (starting with pyruvate) - ANSWER✔✔2 ATP, 8
NADH, 2FADH per glucose (acetyl co A)


What is ETC (Electron Transport Chain)? - ANSWER✔✔The electron transport
train uses high-energy electrons from the Krebs cycle to convert ADP into ATP :
happens in the cristae; series of protein "steps" electrons move down steps to
power ADP to ATP; Makes 32 ATP


Where is ETC in bacteria - ANSWER✔✔Plasma membrane


What are Coenzymes? - ANSWER✔✔q1. Electron carriers (taxicabs) NADP+
picks up an enzyme from one side of the cell and becomes reduced (NADPH) and
releases it at another side of the cell (reactions are far apart in the cell) and 2. They
also accept high energy electrons from one chemical reaction and transport them to
the site of a different reaction.


How is energy used in the ETC? - ANSWER✔✔Energy from these electrons is
used to transport H+ ions into the inner thylakoid

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