ENZYMES
Vocabulary
protein
substrate (reactant)
active site
bind
catalyst
require
lock and key model
hypothesis
induced – fit model
break down
nutrient
reusable
→białko
→substrat
→miejsce aktywne
→wiązać
→katalizator
→wymagać
→model klucza i zamka
→hipoteza
→model indukowanego dopasowania
→rozkładać
→składnik odżywczy
→wielokrotnego użytku
What are enzymes?
Substances in plants and animals that speed
biochemical reactions.
Enzymes are
needed for
almost all
processes.
End in –ase
(e.g . Lactase,
Maltase)
Most
enzymes are
proteins.
ENZYMES
The shape
of an
enzyme is
what
determines
its function
Are very
specific in
their function.
Each enzyme
has only one
reaction that it
can helps.
How do enzymes work?
Mechanism action
LOCK AND KEY
MODEL
There are 2 main hypothesis
explaining of enzyme action.
INDUCED – FIT
MODEL
Lock and key model
Induced-fit hypothesis
Enzymes are unchanged and can
repeat the process (are reusable)!!!
1.
Substances
that
in
speed
plants
and
biochemical
animals
reactions.
3.
Film- vocabulary
 occur
 support
 common
 digest
 starch
 combine
 convert
 altered
 amount
występować
podtrzymać
wspólny
trawić
skrobia
połączyć
przekształcać
zmieniony
ilość
http://www.youtube.com/watch?v=XTUm-75-PL4
4.
Enzymes are proteins that speed up chemical reactions.
Without enzymes reactions would be too slow to support
life. There are many different types of enzymes. “Piranha
Enzyme” is actually called pepsin. In your mouth, there is
amalyse. .
Each enzyme has an active site. Each enzyme can only
bind to one type of substrate. Lipase Enzyme breaks
down fats . Enzymes are recycled .