100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
BIOS 255: Test 2 Questions and Answers $16.99   Add to cart

Exam (elaborations)

BIOS 255: Test 2 Questions and Answers

 8 views  0 purchase
  • Course
  • BIOS 255
  • Institution
  • BIOS 255

BIOS 255: Test 2 Questions and Answers

Preview 4 out of 51  pages

  • September 23, 2024
  • 51
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIOS 255
  • BIOS 255
avatar-seller
GOLDTUTORS
BIOS 255: Test 2 Questions and Answers


ATP synthase Correct Ans-- multi-enzyme complex


- 2 major subunits




mRNA transcription complex Correct Ans-about 60 proteins


- a macromolecule




Virus Correct Ans-infective molecular complexes of nucleic acid and proteins (Zika)




Denaturation Correct Ans-loss of a protein's shape




Renaturation Correct Ans-Regaining of biological activity via assembly into native 3D shape

, BIOS 255: Test 2 Questions and Answers
Native Protein Orientation Correct Ans-3D spatial orientation that is the most


thermodynamically stable & has the lowest free energy expenditure ( forms spontaneously)




Helix Correct Ans-- spiral staircase-like shape


-common protein confirmation




Fiber Correct Ans--elongated bound monomers


- common protein conformation




Globular Correct Ans--roughly a sphere


- common protein confirmation


- native confirmation for most enzymes


- hydrophobic interior pocket


- hydrophilic exterior surface


- this maximizes the number of H-bonds formed

, BIOS 255: Test 2 Questions and Answers


Physical forces that shape confirmations Correct Ans-weak electrostatic forces:


- non covalent bonds, h-bonds, hydrophobic & hydrophilic interactions, & strong covalent


bonds




Lock & Key Correct Ans-




Induced Fit Hypothesis Correct Ans-when a glucose molecule comes close to the


hexokinase active site it induces a conformational shift in the enzyme to better hold the


substrate glucose




Unstructured portion proteins Correct Ans-a protein that lacks a fixed or ordered three-


dimensional structure




- best for signaling, regulation, and control functions

, BIOS 255: Test 2 Questions and Answers


Why is there no free rotation in peptide bonds? Correct Ans-This is true because a peptide


bond is planar as are all atoms bonded to it & occur in the same plane




- restructs protein confirmation




How folding changes 3D confirmation Correct Ans-via orderly steps in a sequential way




-Steps:


First secondary, then structural motifs & assembly of complex domains, followed by tertiary


forces or quaternary shapes




Molecular Chaperons Correct Ans-Bind and stabilize newly made unfolded proteins


preventing these proteins from self aggregating and/or being denatured before folding

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 GOLDTUTORS. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $16.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

82013 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$16.99
  • (0)
  Add to cart