CARBOHYDRATE

• A carbohydrate is a macromolecule,
• consisting of carbon, hydrogen, and oxygen.

MONOSACCHARIDES

• Carbohydrate monomers are called monosaccharides
• Example: glucose and fructose.

DISACCHARIDES

• Two monomers are joined by a glycosidic bond to form a disaccharide.
• Example: sucrose.

POLYMERS

• Carbohydrate polymers. Example: starch, glycogen and cellulose.
• Formed from many monomers joined by glycosidic bonds.

CHEMICAL ENERGY

• Carbohydrates are important sources and stores of chemical energy.
• There are tests to indicate if they are in food.

CARBOHYDRATES ARE IN FOODS WE EAT

• whole grain breads and cereals, pasta, and rice.
• Starchy vegetables.
• Examples: potatoes, green peas, lima beans, beets.

FIBER

• Fiber is a carbohydrate that cannot be broken down.
• It passes through the body undigested.

PHOTOSYNTHESIS