Lab 13: Carbohydrate Catabolism

Front 1

Catabolism

Back 1

chemical reactions that release energy from the decomposition of complex organic molecules.

Front 2

Carbohydrates

Back 2

organic molecules that contain carbon, hydrogen, and oxygen in ratio.

Front 3

Monosaccharides

Back 3

simple sugars containing from 3 to 7 carbon atoms.

Front 4

Oligosaccharides

Back 4

composed of 2 to about 20 monosacharide molecules.

Front 5

Polysaccharide

Back 5

consist of 20 or more monosaccharide molecules.

Front 6

Hydrolytic Enzymes

Back 6

Enzymes are mainly this. They leave the cell and break down, by the addition of water, large substrates into smaller components, which can then be transported into the cell.

Front 7

Oxidative Catabolism

Back 7

requires the presence of molecular oxygen.

Front 8

Fermentative Catabolism

Back 8

does not require oxygen but may occur in its presence.

Front 9

OF medium

Back 9

nutrient semisolid agar deep containing a high concentration of carbohydrate and a low concentration of peptone.

Front 10

OF medium contains the indicator bromthymol blue, which turns _____ in the presence of acids, indicating catabolism of the carbohydrate.

Back 10

Yellow

Front 11

Alkaline conditions, due to the use of peptone and not the carbohydrate, are indicated by _______ due to ammonia production

Back 11

Dark blue

Front 12

If both tubes are metabolized, what has occurred?

Back 12

Fermentation