Question

Which monosaccharide serves as an energy source for many organisms and is used as a monomer to form complex carbohydrates?
* 2 points

Chitin

Glucose

Starch

Cellulose
Which polysaccharide is a major part of the cell walls in plants and algae?
* 2 points
Glycogen
Chitin
Cellulose
Starch

Answer 1

1) Glucose — it's the primary monosaccharide used for energy and as a monomer for polysaccharides.
2) Cellulose — it's the main structural polysaccharide in plant (and many algal) cell walls.