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Biology
Enzymes and biological reactions
Sites of enzyme action
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mayesha
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Cards (8)
where are enzymes made?
inside
cells
, like other
proteins
where are the 3 distinct sites where enzymes act?
extracellular
Intracellular
- in
solution
Intracellular
-
membrane-bound
how do enzymes act in extracellular?
some enzymes are secreted from cells by exocytosis and catalyse extracellular
reactions
whats an example of enzymes acting in extracellular?
digestive enzymes
amylase
, made in the
salivary glands
,
moves
down
the
salivary
ducts
to the
mouth
saprotrophic
fungi
and
bacteria
secrete
amylases,
lipases
and
proteases
onto their
food,
which
digest
it and the
organisms
absorb
the
products
of
digestion
how do enzymes act in intracellular, in solution?
they
act
in
solution
inside
cells
whats an example of enzymes acting in intracellular, in solution?
enzymes that
catalyse
glucose
breakdown
in
glycolysis
, a
stage
of
respiration
in
solution
in the
cytoplasm
enzymes in
solution
in the
stroma
of
chloroplasts
catalyse
the
synthesis
of
glucose
how do enzymes act in intracellular, membrane-bound?
they
may
be
attached
to
membranes
what an example of enzymes acting in intracellular, membrane-bound?
on the
cristae
of
mitochondria
and the
grana
of
chloroplasts,
where they
transfer
electrons
and
hydrogen
atoms
in
ATP
formation
