100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
BCH210 Midterm Test 1 (OWN), BCH210 Class 2 (+learn this w/ the notes), BCH210 Class 3, BCH210 Class 4, BCH210 Class 5, BCH210 Class 6, BCH210 Class 9 CA$34.50   Add to cart

Exam (elaborations)

BCH210 Midterm Test 1 (OWN), BCH210 Class 2 (+learn this w/ the notes), BCH210 Class 3, BCH210 Class 4, BCH210 Class 5, BCH210 Class 6, BCH210 Class 9

 4 views  0 purchase

Classifications of proteins are based on.... correct answer: - position in the cell (membrane/soluble/extracellular) - function (transporter/enzyme/structural/hormone) - other molecules associated w/ it (glycoprotein - sugar, lipoprotein - lipid) A salt bridge is an....bond and is an example ...

[Show more]

Preview 4 out of 88  pages

  • August 15, 2023
  • 88
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
All documents for this subject (25)
avatar-seller
Classroom
BCH210 Midterm Test 1 (OWN), BCH210 Class 2 (+learn
this w/ the notes), BCH210 Class 3, BCH210 Class 4,
BCH210 Class 5, BCH210 Class 6, BCH210 Class 9

Classifications of proteins are based on.... correct answer: -
position in the cell (membrane/soluble/extracellular)
- function (transporter/enzyme/structural/hormone)
- other molecules associated w/ it (glycoprotein - sugar,
lipoprotein - lipid)

A salt bridge is an....bond and is an example of a.....interaction
correct answer: ionic, non-covalent

Are salt bridges easier to break in biochem? Why? correct
answer: - Yes- Interacting w/ surrounding solvent (water)

Is an O bonded to a phenyl group a H-bond acceptor? correct
answer: - NO!
- Resonance around the ring delocalizes electrons

How do the hydrophilic groups protect the hydrophobic inside?
correct answer: They act like "arms" on a body (alpha C that's
attached to amino, carboxyl and H) that bind the water
molecules and "throw" them away
- form spontaneous favorable bonds w/in molecule to prevent
unfavorable bonds

Soluble protein - where, what does it interact w/ correct answer:
- Floats around in your cell/bloodstream
- Usually w/in cytosol or any sort of organelle

,- Can interact w/ water through H-bonds

How do intramolecular covalent bonds form? (FIGURE 2,
notes) correct answer: - Nucleophilic attack

A membrane protein is....which makes it..... correct answer:
Bound to nuclei/mitochondria, not soluble

Why is it important for a protein to be water soluble? correct
answer: Easier to travel through your body

Can hydrophobic structures still travel through your body?
correct answer: - Yes, but they need proteins that help deliver
them

Is hemoglobin a transporter? correct answer: - Yes, it's a soluble
transporter
- It is NOT a membrane transporter because its not a membrane
protein

Learning Objectives correct answer: - Functional group
organization in AAs
- Zwitterions
- 1 letter + 3 letter abbreviations + structures of 20 AAs
- Derivatives of AAs (add/take away a functional group ->
change properties)

The 20 AAs have.....and can.... correct answer: - distinct side
chains
- unique properties from distinct side chains
- contribute to protein's structure + function

,Non-covalent interactions (ionic, H bond, VdW) allow the
protein to....and allow interactions b/w....and... correct answer: -
allow protein to curl up into > compact structures
- b/w chains
- AA sidechain + sugar

PDB# 2GHA correct answer: - sugar binding protein, bind to
centre of sugar at AA side chain
- beige: HC chain, red: O - hydroxyl/carboxylic containing
groups (of sugar structure)
(blue: Nitrogen - of the AA structures)

Noncovalent and covalent interactions are...., and are important
for structure because....and function because.... correct answer: -
mediated by functional groups
- (structure): hold protein together
- (function): important for interactions w/ other molecules

......functional groups in AAs help....., and these groups are on
the......of the.....protein correct answer: - Hydrophilic/polar
- help solubilize protein
- surface of the sugar binding (PDB# 2GHA) protein

How is the peptide backbone not broken by water molecules?
correct answer: It's protected by side chains surrounding it

Proteins are... correct answer: POLYMERS of AAs
COVALENTLY linked in LINEAR chains through
PEPTIDE/AMIDE bonds -> polypeptides

, AAs are made up of...(structure) correct answer: - one alpha C
- amino group (NH3+)
- carboxyl group (COO-)
- one H (except in Glycine, which has 2), - unique R side chain
that gives it its unique properties and interactions

Two AAs are linked through...so that...and.....is released correct
answer: - a peptide bond
- free amino (NH3+) on the left + free carboxyl (COO-) on the
right
- H2O (one O from COO- + 2 Hs from NH3+)

There are....and....AAs correct answer: - essential and
nonessential

Essential AAs.... correct answer: MUST be obtained from our
diet

Our body can make about... correct answer: - 10 AAs
- from sugars/fats in our diet
- some people need more

The central C is called.. correct answer: The alpha Carbon

AA has a...structure in.....(chemical structure) correct answer: -
tetrahedral
- 3D Geometry

AAs are....because.... (chemical structure) correct answer: -
chiral
- 4 ≠ groups around the alpha C cause assymetry

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 Classroom. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$34.50. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

73216 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
CA$34.50
  • (0)
  Add to cart