Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Carbohydrates and Glycobiology - Lecture Slides | CHEM 501, Assignments of Chemistry

Material Type: Assignment; Class: Introductionto Biochemistry; Subject: Chemistry; University: University of Wisconsin - Milwaukee; Term: Unknown 1989;

Typology: Assignments

Pre 2010

Uploaded on 09/02/2009

koofers-user-8t4
koofers-user-8t4 🇺🇸

5

(1)

10 documents

1 / 37

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Chemistry 501
Handout 7
Carbohydrates and Glycobiology
Chapter 7
Dep. of Chemistry & Biochemistry
Prof. Indig
Lehninger. Principles of Biochemistry.
by Nelson and Cox, 5th Edition; W.H. Freeman and Company
pf3
pf4
pf5
pf8
pf9
pfa
pfd
pfe
pff
pf12
pf13
pf14
pf15
pf16
pf17
pf18
pf19
pf1a
pf1b
pf1c
pf1d
pf1e
pf1f
pf20
pf21
pf22
pf23
pf24
pf25

Partial preview of the text

Download Carbohydrates and Glycobiology - Lecture Slides | CHEM 501 and more Assignments Chemistry in PDF only on Docsity!

Chemistry 501Handout 7 Carbohydrates and Glycobiology

Chapter 7

Dep. of Chemistry & BiochemistryProf. Indig

Lehninger. Principles of Biochemistry.th^ by Nelson and Cox, 5^ Edition; W.H. Freeman and Company

The two families of monosaccharides are aldoses and ketoses^ Representative^ monosaccharides

Formation of hemiacetals and hemiketals

Formation of the two cyclicforms of D-glucose The α^ and^ β^ anomes of

D-glucose Isomeric forms of monosaccharides that differonly in the configuration about the hemiacetalor hemiketal carbon atom are called anomers.interconvert in aqueous solution bya process called mutarotation.

Conformationalformulas ofpyranoses

Some hexose derivatives important in biology

Disaccharides contain a glycosidic bond Formation^ of^ maltose

anomeric carbon

The glycosidic bond protects theanomeric carbon from oxidation.

Glu(α^1 4)Glu

Some common disaccharides

reducing sugar

non reducing sugar

non reducing sugar^ Non reducing sugars are^ named as glycosides.^ Glc(

α^1

β)Fru configuration ofthe anomericCarbon

carbons joined byThe glycosidic bond

Some homopolysaccharides are stored forms of fuel^ Electron micrographs of starch and glycogen granules Other homopolysaccharides (e.g. cellulose and chitin) serve as structural^ elements in plant cell walls and animal exoskeletons.

Amylose and amylopectin, the polysaccharides of starch

amylopectin

occurs every24 to 30 residues

Strands of amylopectin form double helical structures with each other or with amylose strands