Exam (elaborations)
BCHM 307 Exam | Quizzes and 100% Correct Verified Solutions
- Course
- Institution
BCHM 307 Exam | Quizzes and 100% Correct Verified Solutions
[Show more]
Seller
Follow
Content preview
BCHM 307 Exam | Quizzes and 100%Correct Verified Solutions
The primary structure of a protein is held together by - Answer peptide bonds
pH= - Answer pH=-log[H+]
detergents are - Answer amphiphilic molecules
hydrogen bonds occur between ___ donors and ___ - Answer occur between polar
donors and acceptors
Glutamate has the following pKa's: 2.2 (alpha-carboxyl group), 4.3 (R group), and 9.7
(alpha amino group). What charge would be present on this molecule at pH 7? -
Answer -1
Water is a dipole because - Answer oxygen is more electronegative than hydrogen
of it non-linear arrangement of atoms
for a molecule that functions as a buffer - Answer -it's buffering capacity is at
the molecule's pKa +/-1 pH unit
-consists of weak acid and conjugate base pair
Most of the common amino acids are chiral because - Answer Their alpha carbon
has four different substituents
,The primary structure of a protein is held together by - Answer peptide bonds
Ultimately all levels of protein structure are dependent on - Answer the amino
acid sequence of the protein
which of the bonds or interactions listed below are important for a proteins
secondary structure? - Answer hydrogen bonds between atoms that are part of the
protein main chain
which of the bonds or interactions listed below are important for a proteins
territory structure? - Answer hydrogen bonds, hydrophobic interactions and charge-
charge interactions involving main chain and R-group atoms
Information about mass sectrpmeters - Answer -Mass spectrometers can be used to
precisely measure the mass of a molecule
-the genome of an organism must be sequenced for identifying a protein based on
its peptide individual masses
-mass spectrometers can be used to determine the amino acid sequence of peptides
Which method would be most appropriate to separate two proteins for an
enzyme assay that had similar molecular weights but different net charges? -
Answer Ion exchange chromatography
The R groups of amino acids in an alpha helix - Answer point toward the outside of the
helix
SDS is used in SDS-PAGE to? - Answer -help denature proteins
-make all the proteins migrate to the positive pole
, Enzymes catalyze biochemical reactions by - Answer decreasing the activation energy
of the reaction
During enzyme mediated catalysis, the unstable intermediate that is no longer
substrate and not quite product is known as - Answer the transition state
A homotetramer - Answer -can be stabilized by hydrogen bonds, ionic interactions,
and hydrophobic interactions
-is made up of four identical subunits
In SDS-PAGE, which proteins exit the gel first - Answer the smallest
Agents that can be used to denature proteins and indicate what bonds it disrupts
- Answer
What types of bonds are used to stabilize substrates in the active site of enzymes?
- Answer -hydrogen bonds
-hydrophobic interactions
-ionic interactions
In gel filtration chromatography, which proteins exit the column first - Answer
the largest
Pathways leading to essential amino acids are good targets for ___ - Answer herbicides
Glyphosphate (Roundup) is an inhibitor of ___, an enzyme of the shikimic acid pathway -
Answer EPSP synthase
Glyphosphate blocks __ - Answer Blocks the production of aromatic amino acids
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 KenAli. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.24. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78075 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now