Transcript Homestasis Poster

Homeostasis
What is Homeostasis?
My Experiment:
Professional Scientist Definition:
I placed two plants in two different temperatures. Plant A was placed in 21 degrees
celsius. While plant B placed in 2 degree celsius.
A metabolic equilibrium actively maintained by
several complex biological mechanisms that operate
via the autonomic nervous system to offset changes
Every 12 hours I would check on them, and give each one tablespoon of water.
On stopped on the fourth day of experiment.
My Definition:
My hypothesis was that plant B was going to die from the colder temperature.
Natural balancing that occurs in organisms that
have biological mechanisms that work to response to
changes in their enviroment
My results were as predicted. Shortly after taking the plant out. The plant was
pronounced dead.
Homeostasis in unicellular organisms:
Unicellular grow, respond to the enviroment. Then,
unicellular transform energy, and reproduce. They always to
find sources of energy, to keep concentrations of waters
and minerals within certain levels, and also so that
response to changes happen more quickly.
In multicellular organisms:
Basically the same concept, but the cells communicate
with one another to achieve homeostasis. In multicellular
organisms, the cells become specialized in certain tasks.
This make multicelllular organisms interdependent. This
means that chemical signals are key in Homeostasis
success in multicellular organisms.
How my experiment relates to homeostasis?
I believe the failure of my plant to live, was because the plant did not
have any of the means to react to the cold.
A human has nerve feelings that send the message of cold to the
brain. The brain then send a message to put a sweater, or go away
from the cold. Since the plant had none of these, it died.
Color
29th @ 5:30 PM
A: Green
B: Green
Height
Is it still alive?
15.24 cm
16.51 cm
Yes
Yes
30th @ 5:30 AM
A: Same
B: Same
Same
Same
Same
Unsure (a leaf broke off)
@ 5:30 PM
A: Same
B: Same
Same
Same
Same
Unsure (still frozen)
1st @ 5:30 AM
A: Same
Same
B: Green (with slight discoloring 13.97 cm
on edge of leaves)
@ 5:30 PM
A: Same
B: Green (with slight tinge of
brown)
2nd @ 5:30 AM
A: Same
B: Same
Same
Same
Same
Same
Same
Close to death
Same
Same
Same
Same