Heterotrophs: Organisms that obtain food by consuming other living things.

ATP: Basic energy source used by all cells to store and release energy.

Photosynthesis: The process by which autotrophs use the energy of sunlight to produce high-energy carbohydrates that can be used as food.

Pigment: Light absorbing molecules in plants.

Chlorophyll: Principal pigment in plants and other photosynthetic organisms.

Thylakoid: Saclike photosynthetic membranes found in chloroplasts.

Stroma: Fluid portion of the chloroplast outside of the thylakoids.

Calvin Cycle: Light independent reactions of photosynthesis in which energy from ATP and NADPH is used to build high-energy compounds such as sugar.

ADP: a nucleotide composed of adenosine and two linked phosphate groups converted to ATP for energy storage.

-Chlorophyll makes leaves green.

-It also traps the energy from the sun so the plant can use it.

-When plants take carbon dioxide from the air, they release oxygen. 

-Animals use this oxygen to grow. 

-We release carbon dioxide, which the plants use.

-Plants also need minerals from the soil to grow. -Nitrogen helps them grow and make leaves. 

-Plants need large amounts of nitrogen, phosphorus and potassium. The soil doesn’t always have enough of these nutrients. Gardeners use fertilizer to give plants more nutrients.

-Fertilizers are sort of like vitamins for plants.