Plants undergo photosynthesis to produce their own food from sunlight, carbon dioxide, water, and minerals. They release oxygen as a byproduct and use oxygen at night through their roots. Plants are specially adapted structures to gather the resources needed for photosynthesis. They can reproduce sexually through pollen and seeds or asexually through cuttings and broken parts. When plants die, they either go dormant or decompose and become part of the soil.

1. By: Heather Jo Reynolds

2. Plants are photosynthetic, which means
they gather their food energy directly from
sunlight.
This process is known as photosynthesis.
In order for plants to complete
photosynthesis, they need to have a
supply of:
-Sunlight
-Carbon dioxide
-Water
-Mineral nutrients from the dirt
Next

3. • During
photosynthesis, plants
release oxygen for us to
breath.
They also use a slight
intake of oxygen at night
for parts of the plant that
do not perform
photosynthesis, such as
the roots.
The structure of a plant is
adapted to gathering the
things that the plant needs

4. Main Page

5. Plants start as a seed given off by the
previous generation plant.
Then two parts come out of the seed
called cotyledon.
- The first part is the beginning of it’s
root system.
- The second is the start of the
seedling pushing toward the
surface.
Once it reaches the surface, leaves
sprout and the stem is formed as
well as other specialties the genetic
make up has enabling it to produce
things such as vegetables, fruit, or
flowers.
The root system will continue outward
to follow the source of water.

6. Main Page

7. Special Structures
Some parts of plants
are greatly modified, and
these may look very different
from the "typical“ plants we
are use to. However they are
all adaptations to help the
plant better survive in their
environment.
For example:
- Cactus spines are
leaves, modified to protect the
plant.
- Potatoes, radishes, and carrots
are roots, modified for
storage.
- Tropical plants tend to have
large wax-like leaves to help
the water run off in monsoon
seasons.

8. Next

9. Structures that look the
same to us may be
used in different ways.
For example:
spines, thorns, and
prickles are all sharp
plant parts that protect
the plant and/or it’s
seed from plant eating
animals.
Main Page

10. Plants can reproduce within
it’s self known as, asexual
reproduction.
• It is very easy to clone
plants, and many plants
can grow from cuttings or
broken plant parts.
• Flowers have special
reproductive structures
found in the center of the
flower.

11. Pollen is formed from within the flower and travels up the style
coming out the stigma.
With the help of bees and wind the pollen gets knocked off and on
to the anther which carries the pollen down it’s filament tube. It is
carried to the core of the flower where it
evolves into a seed.
The seed is released either when the plant
dyes and deteriorates into the ground or by the
petals falling off and bring the seed with it.
Diagram

12. Main Page

13. Plant video
Main Page

14. Plants do one of two things. They either
go dormant until the weather permits or
decompose.
When decomposing, they become part of
the soil and break down into it’s separate
chemical components . These
components when layered upon layers of
it’s self compress over time to form the
products we know as coal and oil.
It takes hundreds of thousands of years
to get to this state of being a natural
resource and is becoming quickly
depleted as we consume the product
faster then is made.
Main Page