CO2 CO2 CO2 CO2 CO2 CO2 enters the leaf

C O2 C O2 C O2 C O2 C O2 O2 leaves the leaf

Sunlight provides the energy to join the Carbon atoms together H2O H2O H2O H2O H2O C C C C C O2 O2 O2 O2 O2 Sunlight provides the energy to join the Carbon atoms together H2O enters the leaf

H2O H2 O C C C C C H2O H2O H2O O2 O2 O2 O2 O2 H2O contributes Hydrogen and Oxygen to the building of the Glucose molecule by the plant

C6H12O6 + 6O2 6CO2 + 6H2O Glucose contains stored energy from the sun.

of that energy in the bonds to be used later by heterotrophs H2O + O2 CO2 Energy from the sun is what it took to build glucose and it retains a portion of that energy in the bonds to be used later by heterotrophs Glucose is stored C6H12O6 + 6O2 6CO2 + 6H2O Stored energy From the sun Photosynthesis

C6H12O6 Sugars are stored in fruits and to a lesser extent in Vegetables (not sweet) and as starch in grains (not sweet)

Leafy vegetables and grasses don’t contain much if any simple Sugars like glucose and no starch. Sugar is used to form cellulose which is not digestible by humans But Cows and Horses can digest it.

6CO2 + 6H2O C6H12O6 + 6O2

Apple trees are Autotrophs They make their own food through photosynthesis Apples are full of glucose from photosynthesis

Glucose is consumed by a heterotroph

Glucose enters the blood supply and travels to a cell in the body.

6CO2 + 6H2O C6H12O6 + 6O2 Cellular Respiration Glucose is used by heterotrophs for energy by breaking down the glucose molecule in the cell to release the energy stored in the bonds. Stored energy From the sun Cellular Respiration C6H12O6 + 6O2 6CO2 + 6H2O

6CO2 + 6H2O C6H12O6 + 6O2 When we breathe out, we exhale H2O and CO2 O2 enters the cell to help break down glucose O2 ATP H2O H2O ATP Glucose ends up as H2O and CO2 ATP CO2 CO2 H2O H2O CO2 Glucose is broken down by the cell to provide energy in the form of ATP. ATP is used to keep the cell alive, to drive all cell activities CO2 H2O ATP ATP H2O CO2 ATP CO2 ATP Cellular Respiration C6H12O6 + 6O2 6CO2 + 6H2O