Common Assessment Review

What is the monomer of carbohydrates

• disaccharides

• monosaccharides

• amino acids

• fatty acids

Which polysaccharide is used by plants to store glucose?

• glycogen

• cellulose

• starch

• chitin

Which polysaccharide is used by plants to make their cell wall?

• starch

• glycogen

• cellulose

• chitin

Humans can use starch as an energy source, but are unable to use cellulose for energy. Which of the following best explains the difference in how these molecules are processed in the body?

• 
  Humans can chew starch but cannot chew cellulose.

• 
  Humans dissolve starch in blood plasma but cannot dissolve cellulose.

• 
  Humans make an enzyme to digest starch but cannot digest cellulose.

• 
  Human muscle cells can absorb starch but cannot absorb cellulose.

Answer explanation

Cellulose is used structural support for plant cells' walls. Starch is used as an energy source. (Also Humans do not have the enzyme to breakdown the linkage for cellulose)

Which macromolecule stores energy, insulates us, and makes up the cell membrane?

• lipids
• proteins
• carbohydrates
• nucleic acids

Enzymes belong to which class of macromolecules?

• lipids

• carbohydrates

• proteins

• nucleic acids

Is found in the cell membrane as a bilayer. 

• lipids
• protein
• nucleic acid
• carbohydrate

Which major macromolecule is being represented in this image? 

• carbohydrate
• lipid
• protein
• nucleic acid

Organisms composed of many cells are called

• Prokaryotic
• Eukaryotic
• Unicellular
• Multicellular

Unicellular organisms are

• Prokaryotic
• Eukaryotic
• Made of many cells
• Made of one cell