Plants obtain food through photosynthesis, a process where they use sunlight, water, carbon dioxide, and minerals from the soil to produce their own food. They are able to do this through structures like roots that take in water and minerals, stems that transport nutrients throughout the plant, leaves where photosynthesis occurs using chloroplasts to produce food, and pores called stomata that take in carbon dioxide. Plants also respire and take in oxygen to break down nutrients for energy, releasing carbon dioxide as a byproduct.

2. Plant
parts
Soil

3. How do plants obtain food?
What do they need to do that?
Air
Water
Mineral
salts
What energy do
they use?
Sun light
Photosynthesis
Autotrophs

4. Plants absorb water from the soil
trough their tiny root hairs. Mineral
salts+ water = RAW SAP
The raw sap
travels up the
stem to the
leaves trough
long tubes,
called XYLEM
VESSELS
Carbon dioxide enters
a plant trough tiny
pores called
STOMATA, situated on
the undersode of the
plant´s leaves.
Sun light is essential for
photosyntesis. So the
process can only happen
during the day.
In the leaves, the raw
sap mixes with carbon
dioxide and becomes
ELABORATED SAP:
plant´s food.
Plants release
oxygen as a
waste product of
photosynthesis.
Mineral salts+ water+ CO2+ sunlight= plants food + O2
Plant´s food is
distributed from
the leaves to all
parts of the
plant trough
tubes called
PHLOEM
VESSELS.
Chlorophyll is a green substance which traps
sunlight. It is found in Chloropasts.

5. PHOTOSYNTHESIS

6. Plant
respiration
Photosynthesis
Carbon
dioxide
Oxygen
Oxygen
Carbon
dioxide
Plants make their own food,
so they get nutrients.
Plants need to breathe. They take oxygen
from the air and give off carbon
dioxe.They combine oxygen with nutrients
to get energy.
Oxygen + nutrients = Energy + carbon
dioxide
Nutrients Energy

7. Plants make their own food
so they get nutrients.
Plants need to breathe. They take oxygen
from the air and give off carbon dioxe.
They combine oxygen with nutrients to
get energy.
Oxygen + nutrients = Energy + carbon
dioxide

8. PHOTOSYNTHESIS RESPIRATION
Gas
taken in
Gas
released

9. Growth, movement and
perception of time
Roots always grow
downwards
Stems always
grow upwards
The mimosa plant is
capable of rapid
movement: its leaves
close if you touch it.
Grapevines wrap
themselves round a
support and grow along
it.

10. Growth, movement and
perception of time
Roots always grow
downwards
Stems always
grow upwards
The mimosa plant is
capable of rapid
movement: its leaves
close if you touch it.
Grapevines wrap
themselves round a
support and grow along
it.