Photosynthesis & Respiration
I). Photosynthesis and Respiration
A). Photosynthesis
1). Is a chemical reaction that uses energy from
the sun, carbon dioxide from the atmosphere
and water to create sugars for energy for
themselves and animals that eat the sugars
and oxygen.
2). Chemical Reaction for Photosynthesis:
6CO2 + 6H2O Light C6H12O6 + 6O2
Carbon Dioxide
Oxygen
water
Sugars
C). Photosynthesis occurs in the chloroplasts
of plants.
1). Chloroplasts have two important
structures:
a). Thylakoids: Photosynthetic sacs that
make up the membrane that
surrounds the chloroplast.
b). Stroma: The fliud portion of the
chloroplast outside of the thylakoids.
B). Respiration
1). Is a chemical reaction that uses sugars created by
plants during photosynthesis, and oxygen to release
energy, water and carbon dioxide.
2). Chemical Reaction for Respiration:
6O2 + C6H12O6
6CO2 + 6H2O +
Energy
Oxygen
Glucose (Sugar)
Carbon Dioxide
Water
II). The Relationship between Photosynthesis
and Respiration.
A). Photosynthesis and respiration are basically the
opposte of each other.
B). Photosynthesis removes carbon dioxide from the
atmosphere, and cellular respiration puts it back.
Photosynthesis releases oxygen into the atmosphere
and cellular respiration uses that oxygen to release
enrgy from food.