8: Photosynthesis
Science programmes of study: key stage 3 National curriculum in England (2013, p.6)
Photosynthesis: In the presence of light in chlorophyll carbon dioxide reacts with water to form glucose and
oxygen.
Reaction
Carbon dioxide
Light
Glucose
Oxygen
Pallasade cells
Water
Leaves
Chlorophyll
Chloroplast
Plant
8: Photosynthesis
Science programmes of study: key stage 3 National curriculum in England (2013, p.6)
Photosynthesis: Plant leaves contain palisade cells which have chloroplast that contain chlorophyll where
photosynthesis occurs.
Reaction
Carbon dioxide
Light
Glucose
Oxygen
Palisade cells
Water
Leaves
Chlorophyll
Chloroplast
Plant
8: Photosynthesis
Science programmes of study: key stage 3 National curriculum in England (2013, p.6)
Critical aspects
What is to be
discerned
Light intensity
Concentration of
carbon dioxide
Volume of water
Rate at which oxygen
is produced
Rate at which glucose
is produced
The intensity of light
impacts the rate at
which oxygen and
glucose are produced
v
i
i
v
v
The concentration of
carbon dioxide
impacts the rate at
which oxygen and
glucose is produced
i
v
i
v
v