Carbohydrates

Carbohydrates

, Carbohydrates




• Produced by photosynthesis in
plants.

• The major source of energy
from our diet.

• Composed of the elements C,
H, and O.

Cn(H2O)n

Photosynthesis
6CO2 + 6H2O + energy C6H12O6 + 6O2
Respiration
glucose

, Carbohydrates


- The most abundant organic compounds in nature (50% of the
earth’s biomass).




- 3/4 of the weight of plants.



- 1% of the weight of animals and humans (they do not store).



- 65% of the foods in our diet.

, Carbohydrates

H+ or enzyme
1. Monosaccharide + H2O no hydrolysis




H+ or enzyme
2. Disaccharide + H2O two monosaccharide units

+


H+ or enzyme
3. Polysaccharide + many H2O many monosaccharide units