1 - http:/www4.ncsu.edu/~knopp/BCH451/e97b3.htm BCH 451...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
BCH 451 Summer 1997 Exam #3 NAME 1. Draw the predominate ionic species of the indicated molecules at pH = 7. Be sure to include all carbons and hydrogen atoms! (3) -D-galactopyranosyl (1->4) -D-xylulofuranose (3) 1-linolenoyl phosphatidyl serine (3) pdGpdC 2. (4.5) List and describe the 4 advantages that polysaccharides have over monosaccharides for cells. 3. (2) PUZZLER Write out the full [chemical] name for sucrose. Why do you think that this name for sucrose ends in -ide instead of -ose? 4. (3) Fill in the table for glycoproteins: Name of class (0.2) type of chemical bond linkage (0.4) amino acid(s) involved with linkage (0.4) 5. (1) What are the unique characteristics of sphingolipids? 6. (4.5) For the following pairs of molecules, which one will be more hydrophobic [less polar] at pH 7 and why? phosphatidyl choline and phosphatidyl serine triacylglycerol and cholesterol 1,2 diacylglycerol and 1,3 diacylglycerol (same fatty acids) 7. (1) Why is a biological membrane called "semi-impermeable"?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

1 - http:/www4.ncsu.edu/~knopp/BCH451/e97b3.htm BCH 451...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online