Start by going to http://www.biotopics.co.uk/jsmol/jscontents.html
1.
Click on glucose. a.
Is the glucose shown an alpha or beta configuration? How do you know? [/2 KU] b.
What other carbohydrates contain glucose subunits? [/1 TI]
2.
Go back to the main page. Click on alpha and beta glucose. a.
What is a stereoisomer? [/1 KU] b.
What is cellobiose? How is it similar to cellulose? How is it different? [/2 TI] c.
Humans can break down starch but not cellulose. Why? [/2 A]
3.
Go back to the main page. Click on galactose and glucose comparison. a.
Glucose can be found in the alpha and beta form. What about galactose? [/1 KU] b.
What is the only difference between glucose and galactose? [/1 TI] c.
What disaccharide is formed when these two are linked together? [/1 KU]
4.
Go back to the main page. Click on amylose. a.
What is the relationship between starch and amylose? [/2 TI] b.
How many glucose molecules are in this polysaccharide? [/1 KU] c.
How does the overall shape of amylose contribute to its performance in a starch test? [/3 A]
5.
Go back to the main page. Click on cellulose. a.
How does the overall shape of cellulose look distinctly different from amylose?
[/2 KU]
6.
Go back to the main page. Click on all 20 amino acids. a.
Using what you know about biochemistry try to break the amino acids into three or four groups based on their structures and properties. Justify your groups.
[/4 TI] b.
What do all amino acids share in common? [/1 KU]
7.
Go back to the main page. Click on glucagon. a.
How many amino acids are in this molecule? Is it a peptide or a polypeptide?
[/2 KU] b.
List the first 10 amino acids for this protein, starting at the N-terminus (the end of the chain with the amino group). [/1 KU] c.
Click on “cartoon” under Secondary Structure. What secondary structure is seen in this protein? [/1 KU] d.
Describe this molecule’s tertiary structure. [/2 A] e.
Does this molecule have a quaternary structure? [/1 KU]

8.
Go back to the main page. Click on myoglobin. a.
How many amino acids are in this molecule? Is it a peptide or a polypeptide?
[/2 KU] b.
Click on “cartoon” under Secondary Structure. What secondary structure is seen in this protein? [/1 KU] c.
Compare myoglobin to hemoglobin. [/2 A]
9.
Go back to the main page. Click on amylase. a.
What is function does amylase serve in the body? [/2 KU] b.
How many alpha helices are there? Beta pleated sheets? [/1 KU]
10.
Go back to the main page. Click on saturated and unsaturated fatty acids. a.
Compare stearic and oleic acid. [/2 A]
11.
Go back to the main page. Click on triglycerides. a.
What are the main parts of a triglyceride? [/1 KU] b.
What type of diversity exists in fatty acid chains? Explain. [/2 TI]
12.
Go back to the main page. Click on phospholipid. a.
Compare phospholipids to triglycerides. [/2 A]
13.
Go back to the main page. Click on DNA. a.
In what direction is DNA read to make proteins? [/1 KU] b.
What does antiparallel mean? [/1 KU] c.
What molecule hangs off at the 3’ end? 5’ end? [/1 KU] d.
Is DNA acidic or basic? Why? [/2 TI]
14.
Go back to the main page. Click on ATP. a.
What nitrogenous base is found in ATP? [/1 KU] b.
What monosaccharide is found in ATP? [/1 KU] c.
What other functional group is found in ATP? [/1 TI] d.
What is ADP? [/1 KU]

Starch
Lipids
15.
Fill out the following summary chart for macromolecules. [/12 C]
Macromolecule Monomer/ Subunit
AND
Name of bond between adjacent monomers
Glucose
(Monosaccharide)
AND
Glycosidic (Ester)
Bond
Type & example of this macromolecule
Function of this macromolecule
Proteins
Enzyme - Amylase

Nucleotides
Contains the genetic information of the cell