Enzymes

Front 1

Metabolism

Back 1

the sum of all the biochemical reactions that occur in cells

Front 2

Catalysts

Back 2

speed up rate of chemical reactions without being permanently changed themselves
- used over and over again to speed up the same reaction

Front 3

ENzymes

Back 3

- biological catalysts
- not all proteins are this
-bring reactants together
-lower energy of activation for a reaction
-allow reactions to occur at a temp living things
- have optimum temps & pH ranges

Front 4

Active site of the enzyme

Back 4

where the reactants or substrate temporarily bind, forming enzyme-subtrate complex

Front 5

denuration of enzzymes

Back 5

- can be done by extremes of temp -- heat & ph
- can chance the physical and chemical structure of the enzyme so it can't function properly
- usually perm

Front 6

irreversible inhibitors

Back 6

poisons that bind permanently to an enzyme and can totally prevent it from functioning

Front 7

reversible inhibitors

Back 7

bind weakly and temp. to an enzyme and can act as important regulars in enzymatic pathways, "turning on & off"

Front 8

Lipase

Back 8

cataylze the hydrolysis of LIPIDS

Front 9

Sucrase

Back 9

catalyze the hydrolosis of sucrose

Front 10

Pepsin

Back 10

enzyme produced in the tummy
begins digestion of protein

Front 11

Ptyalin

Back 11

found in saliva that begins digestion of starch

Front 12

Catecholase

Back 12

enzyme found in potato tubers that catalyzes the oxidation of a molecule called catechol to produce the product quinone

Front 13

quinone

Back 13

as these molecules accumulate, they link together and produce melanin

Front 14

browning of food

Back 14

takes place during processing and storage
impairs the sensory properties of food products

Front 15

preservatives

Back 15

acids, halides, phenolic acids, sulfties, and ascorbic acids
-inhibits chem. reaction that causes browning of food