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Light and Photosynthesis Vocabulary

Terms in this set (25)

Wavelength
Distance between two peaks or two troughs
Peak
Highest point in a wave
Trough
Lowest point in a wave
Pigment
Molecules that will absorb certain wavelengths
Reflection
When light bounces off a surface
Visible light color that carries the least amount of energy
Red light
Visible light color that carries the most amount of energy
Violet light
Absorption
When light is "captured" by the surface
Color when all light is absorbed
Black light
Color when all light is reflected
White light
Photosynthesis
Process that plants go through to convert sunlight and carbon dioxide into energy (sugar) and oxygen
Photosynthesis equation
6CO2 + 6H2O + sunlight --> C6H12O6 + 6O2
Law of Conservation of Matter
Law that states "matter cannot be created or destroyed-it can only change its form"
Reactants
In a chemical reaction, these substances are the things that go through the chemical reaction and are changed during the reaction
Products
In a chemical reaction, these substances are things that are formed after the reaction is completed
Chlorophyll
Pigment found in the chloroplasts of plants; gives plants their green color
Photosynthesis reactants
6 carbon dioxide molecules, 6 water molecules, and sunlight (light energy)
Photosynthesis products
Sugar molecule (glucose) and 6 oxygen molecules
Glucose
Sugar molecule that is made through the process of photosynthesis
Chloroplast
Organelle where photosynthesis takes place
Transparent
Objects that allows all light to pass through
Translucent
Objects that allow some light to pass through
Opaque
Objects that do not let any light pass through
Amplitude
Determines how much energy the light wave will carry
Chemical reaction
Occurs when molecules undergo a change and form new compounds (like during photosynthesis)
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