100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
BCH210 EXAM| 341 QUESTIONS| WITH COMPLETE SOLUTIONS CA$23.74
Add to cart
Quickly navigate to
Preview
  2.  
  3. University Of Toronto (U Of T )
  4.  
  5. BCH210
  6.  
  7. BCH210

Exam (elaborations)

BCH210 EXAM| 341 QUESTIONS| WITH COMPLETE SOLUTIONS
 5 views  0 purchase

agarose and agar correct answer: polysaccharides used to run DNA gels and for microbial plates bacterial cell walls correct answer: contain polysaccharides in their peptidoglycan layer lectins correct answer: are proteins that bind to sugars protein glycolsylation correct answer: assis...

[Show more]

Preview 4 out of 61  pages

Document information

  • August 14, 2023
  • 61
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

  • bch210 exam| 341 questions| with complete solution

Written for

All documents for this subject (25)

Seller

avatar-seller
Classroom

Reviews received

Content preview

BCH210 EXAM| 341 QUESTIONS| WITH
COMPLETE SOLUTIONS
agarose and agar correct answer: polysaccharides used to run
DNA gels and for microbial plates

bacterial cell walls correct answer: contain polysaccharides in
their peptidoglycan layer

lectins correct answer: are proteins that bind to sugars

protein glycolsylation correct answer: assists in folding and
cellular recognition, e.g. ABO blood groups

-ose correct answer: indicates a molecule is some kind of carb

blood group antigens correct answer: glycoproteins containing
different oligosaccharides

glucose and fructose correct answer: C6H12O6, they are
isomers, functional groups organized differently, both
monosaccharides

sucrose correct answer: a disaccharide composed of glucose and
fructose linked by an O-glycosidic bond

simplest monosaccharide formula correct answer: (C • H2O)n
n is any number >= 3

,ketose vs aldose correct answer: ketose sugars have a ketone
group (C=O on Carbon 2)
aldose sugars have an aldehyde group ( C=O on Carbon 1)

D or L correct answer: assigned to the asymmetric chiral carbon
furthest away to the carbonyl (last hydroxyl group on the sugar
that is on a chiral carbon determines the L or D isomeric form)
-D OH on right
-L OH on left

formula for different linear hexoses correct answer: 2^n
n is # of chiral carbons
-a ketoheptose has 7 carbons, 4 of which are chiral (ignore last
Carbon and first 2 carbons) so 2^4=16, 16 linear stereoisomers

D sugars correct answer: biologically important

carbohydrate cyclization correct answer: aldehyde/ketone
carbonyl undergo nucleophilic attack by hydroxyl groups
-forms a hemiacetal bond (aldehyde derivative)
-or a hemiketal bond (ketone deriative)

hemiacetal bond correct answer: aldehyde derivative

hemiketal bond correct answer: ketone derivatice

hemiacetal formation correct answer: 1. lone pair of electrons
on an alcohol's oxygen attacks the aldehyde group
2. aldehyde grabs a proton from water
3. original alcohol that attacked donates a proton back to water

,4. new alcohol group is formed & alcohol's side chain + O is
attached

Glucose Cyclization correct answer: C5 OH reacts with C1
aldehyde group to form pyranose ring: Glucopyranose
can be:
1. α -D-glucopyranose (hydroxyl on C5 attacks from top and
new hydroxyl is below the plane of the ring)
2. β-D-glucopyranose (hydroxyl on C5 attacks from below and
new hydroxyl is above the plane of the ring)

α -D-glucopyranose correct answer: glucose cyclization,
hydroxyl on C5 attacks from top and new hydroxyl is below the
plane of the ring

β-D-glucopyranose correct answer: glucose cyclization,
hydroxyl on C5 attacks from below and new hydroxyl is above
the plane of the ring
MORE STABLE FORM as not directly beside other OH

isomer correct answer: same molecular formula, diff structure

constitutional isomer correct answer: diff order of functional
group bonding

stereoisomers correct answer: same formula and order but
-enantiomer
-diastereoisomer

enantiomer correct answer: Non-superimposable mirror image
-invert all chiral centres

, diastereoisomers correct answer: isomers that are not mirror
images but have same formula and order
-epimer
-anomer

diastereoisomer epimer correct answer: differ at one
asymmetric carbon (D vs. L)
-invert some chiral centres but not all

diastereoisomers anomer correct answer: differ at newly formed
asymmetric C in the ring structure

chair conformation: new OH axial correct answer: α form

chair conformation: new OH equatorial correct answer: β form

mutarotation correct answer: the optical rotatio of light resulting
from a change at the anomeric carbon

reducing sugars correct answer: open chain aldoses if they can
react w/ oxidizing agents (have a free aldehyde)
oxidizing agent = copper, aldehyde is converted to a sugar acid

identifying reducing sugars in cyclic sugars correct answer:
look for a free hydroxyl by the anomeric carbon

carbohydrate modification correct answer: sugars can be
phosphorylated, methylated or N-containing functional groups
maybe be added
hydroxyls may be removed

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$23.74. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

50843 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$23.74
  • (0)
Add to cart
Added