Exam (elaborations)
BCH210 Week 4 Questions With Complete Solutions
- Course
- Institution
BCH210 Week 4 Questions With Complete Solutions
[Show more]
Seller
Follow
Classroom
Reviews received
Content preview
BCH210 Week 4 Questions WithComplete Solutions
Properties of Catabolism correct answer: Breaking down larger
macromolecules, exergonic, oxidative. Creates high energy
molecules in teh process (ex. ATP, NADH, FADH2)
Properties of Anabolism correct answer: Building up
macromolecules from smaller molecules, reductive, endergonic.
Requires high energy molecules to fuel the reaction (ex. ATP,
NADH, FADH2).
Metabolism correct answer: The conversion of one molecule
into another. (Cassifications: phototrophs, chemotrophs,
autotrophs, heterotrophs; humans are chemiheterotrophs.)
How to regulate a pathway correct answer: Feedback inhibition
by product, gene level expression of enzymes, cofactor
restriction, allosteric modulation, concentration of substrate,
diverging pathways, inhibition of the enzyme.
Metabolon correct answer: A multi enzyme complex. When the
enzymes come together, they make more efficient use of
cofactors and substrate intermediates.
Enzyme regulation correct answer: Competitvely, Non-
competitively, allosterically, or 100% by covalent modifications.
, Amphibolic intermediates correct answer: An intermediate that
takes part in both catabolic and anabolic reactions. They link
metabolic pathways together. An example is Acetyl CoA (links
PDC, Krebs, etc).
What do we need enzyme-catalyzed reactions correct answer:
Speeds up the rxn (rate of equilibrium attainment), lowers the
activation energy, stabilize the transition state, produce
metabolites needed for cells, they don't undergo structural
changes (conformational not configurational), they can couple
favorable and unfavorable rxns together to produce an overall
favorable rxn.
Thermodynamic Equation correct answer: ΔG=ΔG°'+ RT ln
[P]/[S]
Standard free energy change correct answer: ΔG°' = -RT ln Keq
Keq and G correct answer: If Keq >1, G is -ve and the reaction
proceeds forward (exergonic-release of energy). If Keq <1, G is
+ve and the reaction proceeds in the reverse direction
(endergonic-absorbs energy). If Keq=0, G=0 and the reaction is
reversible.
Metabolic/Pathway flux correct answer: Metabolic flux is the
conversion of metabolites through a pathway by way of
enzymes. Metabolite concentrations and enzyme regulation can
determine a pathway's activity/directionality/flux.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Classroom. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76710 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now