Chapter 4-5 Review Homework Questions

1. The molar mass of a polysaccharide molecule containing only glucose is about 180,000. How many glucose molecules are present in the molecule?

2. Amylase is specific for hydrolyzing alpha-1,4-glucose linkages in starch but cannot hydrolyze maltose to glucose. What would the effect of amylase on glycogen, amylopectin and amylose? (This is a tricky question)

3. What is the process of saponification?.

4. What is the difference between palmitic acid. stearic acid and oleic acid? Where might each be found?

5. Catalase is found in virtually all organisms that grow in the presence of oxygen. How many amino acids are present in human catalase and what is its molar mass?.

6. Catalse contains a cofactor. What is it?

7. What is the difference between and pyrimidine and a purine?

8. Jojoba oil is isolated from the jojoba tree. In what type of environment does the tree grow. What is the economic significance of jojoba oil?.

9. When butter goes spoils it is is termed going rancid. What is it the makes rancid butter taste bad?

10. Would glycine have enantiomers? Why or why not?