Cell walls are used by many different organisms for protection from their environment and structural support.These cell walls must obviously be insoluble in water;otherwise,they would dissolve the first time the organism got wet.Which of the following carbohydrates would you expect to be the most soluble in water?
A)starch
B)peptidoglycan
C)cellulose
D)chitin

Question

Quizplus · Accepted Answer

Starch is made up of glucose molecules that are linked by glycosidic bonds, making it a large, complex carbohydrate. Although starch is relatively large, it is still soluble in water because it has many hydroxyl (OH) groups that can form hydrogen bonds with water molecules. In contrast, peptidoglycan, cellulose, and chitin have more rigid structures that make them less soluble in water.

Cell Walls Are Used by Many Different Organisms for Protection