BISC 100 Lecture : Photosynthesis
19 Dec 2011
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Light is used to make something (sugars molecules) Photosynthesis o o: we look at how plants use light to synthesize glucose ( sugar) o o o o o o. 6co2 + 6h2o => glucose and 6o2 endergonic (multistep) reaction equation summarizing photosynthesis. Jan van helmont (1577-1644) reverse of cellular respiration not just plants have photosynthesis (ex. Algae and bacteria) all of these plants/other stuff have in common is they have green parts (photosynthetic parts) endergonic = energy input needed (sunlight) (so glucose molecule higher energy) Renewal of air only occurs if light is present only green parts of plant are responsible. Stromata on leaves: co2 (reactant) goes in from here and o2 (product) goes out. o o: there is a vein in mesophyll (mesophyll has many chloroplasts in it) Photosynthesis liberates electrons and make water to glucose ( reverse redox reaction) compare with respiration.
