Question

glycogen is

• a transport protein that carries oxygen
• a polysaccharide found in animals
• a source of saturated fat
• the form in which plants store sugars
• a polysaccharide found in plant cell walls

part b
glucose + glucose → __ by __

• maltose + water... dehydration synthesis
• cellulose + water... hydrolysis
• sucrose + water... dehydration synthesis
• lactose + water... hydrolysis
• starch + water... dehydration synthesis

part c
which of these is a source of lactose?

• starch
• sugar beets
• sugar cane
• potatoes
• milk

Explanation:

• Part A: Glycogen is a polysaccharide found in animals that stores glucose. It is not a transport protein, a source of saturated fat, nor a plant - storage or cell - wall polysaccharide.
• Part B: When two glucose molecules combine, they form maltose and water through dehydration synthesis. Hydrolysis is the reverse process. Other options have incorrect products or processes for glucose combination.
• Part C: Lactose is a disaccharide found in milk. Starch is a plant polysaccharide, and sugar beets, sugar cane, and potatoes are sources of other sugars like sucrose or starch, not lactose.

Answer:

• Part A: a polysaccharide found in animals
• Part B: maltose + water ... dehydration synthesis
• Part C: milk