A slideshow describing the process of photosynthesis in sunflowers.

2.  Knowing sunflowers
› What kind of plant is it?
› Where do they grow?
 The process of photosynthesis
› What is it?
› How sunflowers carry out the photosynthesis?

3. The sunflower is an
herbaceous and annual plant
Its stem is thick and can reach
3 metres high
Its colour is gold and it comes
to light in summer and autumn
It is original from North America
Its fruit is the sunflower kite

4. Sunflowers’ development environment is mainly hot
and can not withstand frost.
It needs abundant sunlight and thanks to the ability of
its roots to penetrate deep into the soil, can develop
even on dry land.

5. Photosynthesis is the process of food processing by
plants.
Trees and plants use photosynthesis to feed, grow and
develop.

6. Through the root, the plant
absorbs water and mineral
salts, substances found in fertile
soils.

7. The mixture of
water and
mineral salts
forms the raw
sap. It ascends
through ducts
located inside
the root and
stem to the
leaves.

8. Carbon
dioxide
Oxygen
The leaves take carbon
dioxide from the air. The
mixture of raw sap and carbon
dioxide, with the help of
sunlight, is transformed into the
elaborate sap. Which contains
the food of the plant.
This process is
photosynthesis and occurs
during the day in the green
parts of plants.
In performing this process, the
plants expel oxygen.

9. Each day, the sunflowers wake up and
move towards the Sun, following the star on
their route from East to West, like clock
hands.
At night they do it again in the opposite
direction to wait for their departure in the
morning of the following day.
This movement favors plants to
grow more.
It is a very efficient system for
their development, allowing
them to take advantage of the
light of the Sun to the
maximum, vital in their
photosynthesis.

10. Finally, the elaborated sap is
distributed throughout the
plant through other conduits
located inside the stem. In
this way, the food reaches
the entire plant.

11.  ¿Dónde vive el girasol?. (2017). DONDE VIVE. Retrieved from
https://www.dondevive.org/girasol/http
 ¿Por qué los girasoles siguen al Sol y de un momento a otro dejan
de hacerlo? - BBC Mundo. (2017). BBC Mundo. Retrieved from
http://www.bbc.com/mundo/noticias-37013830
 El girasol. (2017). Flores.ninja. Retrieved from
https://www.flores.ninja/el-girasol/
 Zapata, H., Zapata, H., & perfil, V. (2017). Girasol (Helianthus
annuus). Maringatova.blogspot.com.es. Retrieved from
http://maringatova.blogspot.com.es/2009/03/girasol-helianthus-
annuus.html