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Chapter 8

Intro to Biology

TermDefinition
photosynthesis converts solar energy into chemical energy of carbohydrates
autotrophs organisms that carry on photosynthesis
heterotrophs organisms that feed on other organisms
auto means self
hetero means another
troph means feeder
examples of autotrophs plants, algae, cyonbacteria
examples of heterotrophs humans, animals, e. coli
next step after photosynthesis in both autotrophs and heterotrophs to use chemical enery as building blocks for growth
pigments gives autotrophs the capacity to carry on photosynthesis
pigments allow photosynthesis organisms to capture solar energy
where are pigments located in a cell chloroplast
examples of pigments chlorophyll and carotenoids
what is required to carry out photosynthesis water, carbon dioxide, and light
products of photosynthesis glucose and oxygen
equation for photosynthesis co2 + 6 h20 solar energy, pigments ---> c6h12o6 + 6o2
photo means to capture solar energy
synthesis means to produce a carbohydrate
two sets of reactions in photosynthesis light reactions and calvin cycle reactions
what happens in light cycle light dependent, releases oxygen in the atmosphere and liberates hydrogen
what happens in calvin cycle light independent, converts co2 to a carbohydrate
what wavelength (color) light does chlorophyll absorb violet-blue and orange-red
what wavelength (color) light does carotenoids absorb blue-green
what wavelength (color) light does chlorophyll reflect green
what wavelength (color) light does carotenoids reflect yellow-red
why are leaves green in color green is reflect only minimally absorbed
why do leaves change color in fall chlorophyll breaks down and other pigments now are uncovered
Created by: Jamielee88
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