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Photosynthes
id
7
Science
8th Grade
04/22/2010

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Cards

Term
What ancient organisms are thought to be the first to separate hydrogen in a water molecule from oxygen during photosynthesis?
Definition
the cyanobacteria
Term
Many scientists think that a change in the food source of ancient seas caused the arrival of the photosynthesis process. What triggered this "change"?
Definition
increase in population of heterothophs and a lack of food
Term
Why are autotrophs considered so important to earth's overall health?
Definition
without autotrophs all other life forms would starve to death over time
Term
Autotrophs use of photosynthesis to produce organic compounds from which two reactants?
Definition
water and carbon dioxide
Term
The chloroplasts of photosynthetic organisms absorb which two wavelengths of color?
Definition
low energy red and high energy blue
Term
What specifically is created during the first half of the photosynthetic process?
Definition
the 18 ATP and 12 NADPH energ carrier molecules needed in the final part of photosynthesis
Term
Where in the chloroplast is glucose produced during the light-independent reaction?
Definition
the jelly-like stroma that surrounds the thylakoids
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