EARTH 222 Study Guide - Final Guide: Radiolaria, Georges Bank, Hydrothermal Vent
23 Apr 2017
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Document Summary
4 ingredients for photosynthesis: carbon dioxide, water, energy (from the sun), and nutrients. 2 ingredients for photosynthesis that are typically limiting: nutrients and light. Why is the ocean blue and the huron river brown: different biological materials in the water can change the water"s color. Basic chemical equations describing photosynthesis and respiration: photosynthesis: 6co2 + 6h2o + energy > c6h12o6 + 6o2, respiration: c6h12o6 + 6o2 > 6co2 + 6h2o + energy. Difference between autotrophs and heterotrophs: autotrophs are able to convert inorganic materials into organic materials (through primary production, heterotrophs cannot do this so they eat autotrophs and other heterotrophs for their energy and nutrients. Why is deep water typically cold and rich in nutrients: deep water is cold because light, that would normally heat the water, cannot reach below. 100m (blue-green light can reach 10m: deep water is rich in nutrients because marine snow brings nutrients from the photic zone to the aphotic zone.
