Journey of Plants

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					Journey of Plants

Hannah Blackburn-Jones
People know that the most basic things needed
for a seed to germinate and become a sprout is
sunlight, oxygen, water, and nutrients. These are
all key things that a plant needs for the rest of the
duration it is alive for.
This presentation is how water travels from the
soil, to the roots, and travels through the plants.
Plants have a
primary root, in
which lateral roots
are attached. The
roots embed
themselves into the
soil and spread out.
When water comes
through the spoil,
root hairs attached
to the roots absorb
the water and other
things from the soil.
There are two tubes located
in the root of a plant, the
Xylem and the Phloem
tube. The Phloem tube
transports food made in the
leaves all around the plant,
and also transports down
starch to the root of the
plant. The Xylem tube
transports the water taken
from the root hair up by the
transpiration pull.
From the stem/xylem tubes, water travels to
the veins of the plant. By the time water has
reached the veins, some of it has evaporated
because of Transpiration, even though plants
have a Waxy Cuticle top layer to help prevent
water from escaping, and also spongy cells, it
still get through by the stomata under the leaf.
Now photosynthesis can
take place, thanks to the
important role of the
Xylem tube. The equation
for photosynthesis is
Carbon dioxide + water ->
(sunlight from chlorophyll)
results in glucose + oxygen.
Chloroplast contains
Chlorophyll (a green
substance), which attracts
the sun onto the big
surface area of the leafs.
Once the leaves have
absorbed the energy
from the sun, it
combines water and
the carbon dioxide to
make its food, which
is glucose. Then, the
glucose is
transformed into
starch, and is taken
back down the
Phloem tube to the
rest of the plant. And
the process starts
again
                Bibliography
• http://library.thinkquest.org/3715/plant1.gif
• http://static.blogcritics.org/10/01/17/123791/tre
  e-roots.jpg
• http://www.emc.maricopa.edu/faculty/farabee/b
  iobk/xylem.gif
• http://image42.webshots.com/42/5/53/24/3447
  55324kFHgnp_ph.jpg
• http://cache2.allpostersimages.com/p/LRG/14/1
  461/FSFQ000Z/posters/kahn-andrea-poppies-in-
  sunlight-ii.jpg

				
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posted:1/23/2012
language:English
pages:8