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
Uoft 2023 Fall BCH210 Final exam Questions With Complete Solutions CA$23.23   Add to cart
Quickly navigate to
Preview
  2.  
  3. University Of Toronto (U Of T )
  4.  
  5. BCH210
  6.  
  7. BCH210

Exam (elaborations)

Uoft 2023 Fall BCH210 Final exam Questions With Complete Solutions
 240 views  2 purchases

Monosaccharide formula correct answer: (CH2O)n (n is 3 or more) Aldotriose correct answer: Also known as glyceraldehyde, simplest aldehyde monosaccharide (n = 3), has L and D isomer (centre carbon is chiral) Ketotriose correct answer: Also known as dihydroxyacetone, simplest ketone monosac...

[Show more]

Preview 3 out of 30  pages

Document information

  • August 14, 2023
  • 30
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

  • uoft 2023 fall bch210 final exam questions with co

Written for

All documents for this subject (25)

Seller

avatar-seller
Classroom

Reviews received

Content preview

Uoft 2023 Fall BCH210 Final exam Questions
With Complete Solutions
Monosaccharide formula correct answer: (CH2O)n (n is 3 or
more)

Aldotriose correct answer: Also known as glyceraldehyde,
simplest aldehyde monosaccharide (n = 3), has L and D isomer
(centre carbon is chiral)

Ketotriose correct answer: Also known as dihydroxyacetone,
simplest ketone monosaccharide (n = 3), non chiral

Carbon numbering correct answer: Aldoses always have
aldehyde and C1, ketoses have ketone at C2

Sugar naming correct answer: triose, tetrose, pentose, hexose,
etc., l or d based on whether hydroxyl is right of chain (d) or left
(l), last chiral carbon (furthest from carbonyl) denoted with L or
D

L isomer of a sugar correct answer: Last chiral carbon's
hydroxyl is on the left

D isomer of a sugar correct answer: Last chiral carbon's
hydroxyl is on the right, found in body

Number of stereoisomers in a linear monosaccharide correct
answer: 2^(Number of chiral carbons), e.g. for an aldopentose,

,3 chiral carbons so 8 isomers, for a ketopentose, 2 chiral carbons
so 4 isomers. If including cyclic structures, there are 2 more or 4
more if it can form both 5 and 6 ring structures

cyclic structures of monosaccharides correct answer: Prevalent
form monosaccharides with 5 or 6 carbon atoms, form when the
hydroxyl group on the last chiral carbon reacts with the aldehyde
group or ketone group.

Furan ring correct answer: 5 member ring with O formed by
cyclization of a monosaccharide (cyclization of ketose usually).
Can occur with tetroses (4 Cs + O from carbonyl)

Pyran ring correct answer: 6 member ring with O formed by
cyclization of monosaccharide (cyclization of aldose usually)

Nucleophilic attack to cyclize sugars correct answer: Only
occurs in water, electrons of hydroxyl group attack carbonyl,
forming cyclic structure with the old hydroxide becoming an O
in the ring and a new hydroxide formed (using the old
hydroxide's H) either above/equatorial (beta) or below/axial
(alpha) the plane of the structure - beta is more stable

Anomeric Carbon correct answer: the new chiral center formed
in ring closure; it was the carbon containing the carbonyl in the
straight-chain form

Anomers correct answer: Isomers that differ at a new
asymmetric carbon atom formed on ring closure (e.g. alpha and
beta)

, Mutarotation correct answer: The rapid interconversion
between different anomers of a sugar that allows the substanace
to rotate polarized light

Isomers correct answer: Two different molecules that have the
same chemical formula

Constitutional isomers correct answer: same molecular formula,
different connectivity

Stereoisomers correct answer: Compounds with the same
structural formula but with a different arrangement of the atoms
in space.

Enantiomers correct answer: isomers that are mirror images of
each other

Diastereoisomers correct answer: Stereoisomers that are not
mirror images of each other. Includes epimers (only differ at one
assymetric carbon) and anomers (differ at a newly formed,
asymmetric C in the ring structure)

Reducing Sugars correct answer: Saccharides (sugars) that
donate electrons resulting in the reduction (gain of electrons) of
another molecule. Require a free OH next to O in the cyclic
form to convert back to the linear form and have a carbonyl to
react. Sugar acts as a reducing agent and is oxidized in reaction

Linearization of sugars correct answer: Bond is broken between
O and the carbon containing a hydroxyl. The O becomes a

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$23.23. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67096 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$23.23  2x  sold
  • (0)
  Add to cart