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Cards (53)
Mechanical
digestion
definition
Involves
physical
actions
that make chunks of food
smaller
What does
mechanical
digestion
do?
Increases
the
surface area
available for
chemical
digestion to occur
Chemical
digestion
definition
Uses certain
enzymes
to
break down nutrients
into
smaller
molecules
Where is bile
produced
Liver
Where is it
stored
Gall bladder
Where is bile
released
into
Small intestine
Bile
is what?
An
alkaline
What does Bile do to your
stomach?
Neutralises the acid
Name of
stomach
acid
Hydrochloric acid
Bile makes the
conditions
of the stomach acid?
Neutral
/
alkaline
Bile does what to
fats?
Emulsifies fat
Bile turns fats into?
‘tiny droplets’
Enzymes in the
small
intestine
work best in these
alkaline
conditions
This gives a
bigger surface area
of the
fats
for
lipase
to work on
Two types of cells:
Eukaryotic
prokaryotic
What are
prokaryotic
cells (size and example)
Bacteria
0.1-0.5
What are
eukaryotic
cells? (Size and types)
Plants
fungi
protist
Animal cells
10-100
Different parts of the
cell
are called?
Sub cellular structure
Nucleus
does?
Contains genetic material.
Genetic material controls
what the
cell
does
Cytoplasm
does?
Where most of the chemical reactions happen
Cell membrane
does?
Controls
what goes
in
and
out
of the
cell
Mitochondria
does?
Most aerobic respiration happens
Respiration transfers energy
that
cells
need to
work
Ribsomes
does?
Where
proteins
are
made
in
cells
Animal cells
contain:
nucleus
cytoplasm
cell membrane
mitrochondia
ribsome
nucleus
cytoplasm
cell membrane
mitrochondia
ribsomes
Cell wall
does?
Made of
cellulose
It
supports
the
cell
and
strengthens
it.
Permanent vacuole
does?
Contains cell sap
Chloroplast
does?
Where
photosynthesis happens.
Photosynthesis
makes
food
for The
plants
Plant
cells
contain:
nucleus
cytoplasm
cell membrane
mitrochondia
ribsomes
cell wall
permanent vacuole
chloroplast
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