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24 Cards in this Set
- Front
- Back
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Where does the carbon come from in photosynthesis?
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CO2
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What is the energy source of photosynthesis?
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Sunlight
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What does the term autotroph mean?
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Auto means self.
troph means feeding. |
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Give an example of an autotroph.
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Plants or some bacteria or many types of protistans.
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How do phototrophs's get energy?
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They produce it themselves.
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What does the term heterotroph mean?
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hetero means different
troph means feeding |
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How do heterotrophs get their Carbon and energy?
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They get it by feeding on autotrophs or one another.
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Photosynthesis and Aerobic respiration are ________ _________.
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linked processes
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Describe how photosynthesis and aerobic respiration are linked.
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Photosynthesis is an energy storing pathway that releases oxygen and requires co2. Aerobic respiration is an energy releasing storing pathway that requires oxygen and releases co2.
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What is the electro-magnetic spectrum?
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The full range of energy radiation from the sun.
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__________ runs on a fraction of the electro-magnetic spectrum.
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Photosynthesis
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Sunlight is a ______________ input from the solar energy into earths atmosphere.
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continual
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How much energy from sunlight is reflected back into space?
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1/3
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How much of the energy that reaches the earth's surface is intercepted by photoautotrophs?
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1%
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Visible light are the wavelengths that we perceive as ________.
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colors
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What is the range of colors we can see?
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From violet (380 nm) to red (750 nm).
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Photons are _______ of light energy.
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packets
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Each photon has a ________ fixed amount of energy.
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fixed
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Photons having the most energy travel on the _______ wavelength.
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shortest
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What are pigments?
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Light absorbing molecules.
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Pigments _________ some wavelengths and __________ others
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absorb, transmit
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Are the colors we see absorbed or transmited by pigments?
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The colors we see are transmitted by pigments. We can see these colors because they are not absorbed.
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In a pigment strucure, the light catching part of the molecule has ___________ single and double bonds.
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alternating
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The bonds in a pigment structure contain electrons that are capable of being moved to a higher energy state by _____________ _________.
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absorbing light
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