Use the Netscape version 4 (or later) browser, Microsoft Explorer or another browser that is compatible with

Javascript, and has the Macromedia flash and authorware plug-ins. You browser may ask

to download plug-ins if your browser is not appropriately equiped. Links are on the index page of our website.

Go to Dr. John Maber's website http://www.jonmaber.demon.co.uk/monosaccharide/

There is a link on our webpage, titledMonosaccharide Resource.

Use the "Monosaccharide Browser" to complete the following assignment

The necessary information is also available (in 2-d of course) in the textbook. Compare it to the website.

Learn the chain structure of:

D-glucose (aka dextrose), d-fructose, d-glyceraldehyde.

Using your notes or textbook, compare the straight chain form of d-glucose to the ring form. Other than the obvious (ring is ring and chain is chain) do they differ? If so, how?

Be prepared for a quiz.

Right-handed monosaccarides are the most common type in organisms. For some
unknown reason, right handed sugars and left handed amino acids are the isomers
found in nature, with few if any of the opposite type. D type are right handed
isomers, L-type are left. (D is for dexter, Latin for right.)

a. Draw d-glucose, d-fructose and d-glyceraldehyde, using the straight-chain form.

b. Identify each example as a triose or hexose, and as an aldo or keto form.