Problem 47
Why is the polysaccharide chitin a suitable material for the exoskeleton of invertebrates such as lobsters? What other sort of material can play a similar role?
Problem 49
Some athletes eat diets high in carbohydrates before an event. Suggest a biochemical basis for this practice.
Problem 50
You are a teaching assistant in a general chemistry lab. The next experiment is to be an oxidation-reduction titration involving iodine. You get a starch indicator from the stockroom. Why do you need it?
Problem 53
What are glycoproteins? What are some of their biochemical roles?
Problem 54
Briefly indicate the role of glycoproteins as antigenic determinants for blood groups.
