Basic Chemistry and Carbohydrates Quiz

Carbon can bind to 4 hydrogen atoms. This lets us know that carbon has _____ unpaired electrons in its outer shell.

• None

• 1

• 2

• 4

What determines the strength of a covalent bond?

• The number of shared electrons between the atoms

• The distance between the bonds

• The number of protons each atom has

• The number of neutrons in the outer shell

A polymer is made up of:

• Identical monomer subunits

• Chemically similar monomer subunits

• Dissimilar monomer subunits

• Carbohydrates

What occurs during a dehydration reaction?

• Monomer subunits are joined together, and a molecule of water is lost

• Monomer subunits are joined together, and a molecule of water is gained

• Polymer subunits are broken apart, and a molecule of water is lost

• Polymer subunits are broken apart, and a molecule of water is gained

What is the carbon : hydrogen : oxygen ratio of carbohydrates?

• 2:1:2

• 2:2:1

• 1:2:1

• 1:1:1

Which monosaccharide is the most abundant carbohydrate monomer on Earth?

• Galactose

• Glucose

• Fructose

• Lactose

Which disaccharide is primarily found in milk?

• Cellulose

• Starch

• Glucose

• Lactose

Which organ in our body uses the most glucose relative to its size?

• Brain

• Kidney

• Liver

• Heart

How do plants store glucose to use for energy?

• Starch

• Cellulose

• Glycogen

• Fructose

How do plants store glucose to use for structure?

• Starch

• Cellulose

• Glycogen

• Fructose