Biochemistry of Foods: Chapter 8 Sugar

Which is not an element found in carbohydrates?

• carbon

• hydrogen

• nitrogen

• oxygen

Through photosynthesis, plants ____.

• convert starch to sugar

• convert radiant energy to chemical energy

• turn water into fructose

• All of the above.

Hydroxyl groups are ____.

• a part of organic alcohols

• found in all carbohydrates

• a hydrogen atom and an oxygen atom bonded together

• All of the above.

Which of the following is an example of a monosaccharide?

• Glucose.

• Lactose.

• Maltose.

• Sucrose.

Which saccharide has a five-member ring as the base of its structure?

• Fructose

• Maltose

• Sucrose

• Galactose

Sugars with only five carbon atoms are called ____.

• invert sugars

• mannitol

• riboses

• none of the above

Which of the following can cause the hydrolysis of sugar?

• agitation

• addition of an acid

• refrigeration

• all of the above

Enzymes that hydrolyze sugar are identified by the suffix ____.

• -ol

• -oh

• -ose

• -ase

A solution that holds more solute at a given temperature than normal is ____.

• a solid

• Thick

• saturated

• supersaturated

Substances that affect sugar crystal growth are called ____.

• enzymes

• invert sugars

• interferring agents

• fermenting agents