photosynthesis Flashcards
photosynthesis
a chemical reaction during which plants convert energy from the sun to chemical energy; the reaction converts carbon dioxide and water to sugar and oxygen.
carbon dioxide
a clear odorless gas which plants use as a raw material in photosynthesis .
reactants
a substance that takes part in and undergoes change during reaction.
radiant energy
energy from the sun that reacher earth as visible light, ultra violet light, and ifraded radiation. (heat)
chemical energy
energy that is stored within a molecule
chloroplast
organelle in plant cells used to make food. it contains a light-trapping pigment called chlorophyll.
chlorophyll
a light-trapping pigment in the chloroplasts of plants cells.
glucose
a simple sugar made by plants during photosynthesis. plants store long chains of glucose as starch.
starch
long chains of glucose stored in plants
products
a substance produced as a result of a chemical change.
oxygen
a clear colorless gas that is a waste product of plants during photosynthesis
turgor pressure
the pressure, or force of the water inside a plant cell againts the outside,or cell wall
geotropism
the response of a plant to gravity
phototropism
the growth of a plant toward or away from light.
