Understanding Photosynthesis and Its Processes
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33 Terms
chlorophyll
Absorbs light energy.
Pigment that gives a plant its green color. Found in the chloroplast
chloroplast
organelle where photosynthesis takes place.
oxygen
product of photosynthesis
carbon dioxide
Gas taken in and used during photosynthesis.
leaf
the part of the plant where most photosynthesis takes place
light energy
energy from the sun that is used by plants to produce their own food by the process of photosynthesis
stomata
tiny holes in the leaves of the plant where gases like carbon dioxide and oxygen enter and exit
Photosynthesis
converting light energy to the chemical energy of food, in plants
Photosynthesis word equation
carbon dioxide + water --> glucose and oxygen
Photosynthesis symbol equation
CO2+H2O --> C6H12O6 + O2
Glucose
the type of sugar made during photosynthesis
product
a substance that is formed by a chemical reaction
Autotrophs
Organisms that produce their own food.
Heterotrophs
Organisms that consume other organisms for food.
Law of Conservation of Matter
Matter cannot be created or destroyed.
Law of Conservation of Energy
Energy cannot be created or destroyed.
Chlorophyll
Green pigment absorbing light energy in chloroplasts.
Stomata
Leaf openings for gas exchange.
ATP (simple definition)
Energy-carrying molecule in cells.
Light-Dependent Reactions
First stage of photosynthesis, occurs in thylakoids.
Dark or Calvin Cycle
Light-independent or dark stage producing glucose in stroma.
Thylakoids
Membrane structures in chloroplasts for light reactions.
Stroma
Fluid-filled space in chloroplasts for Calvin Cycle.
Glucose formula
C6H12O6
Byproduct of photosynthesis released into the atmosphere.
oxygen
Gas absorbed by plants during photosynthesis.
carbon dioxide
Water
Essential reactant in photosynthesis.
2nd Law of Thermodynamics
Energy cannot be changed from one form to another without a loss of usable energy (typically heat)
auto-
self
troph
feeder
hetero-
other
ATP
A molecule that has 3 phosphates; when a bond is broken and it loses a phosphate, energy is released.
ADP
Adenosine diphosphate, which has two phosphates.
