BIOL 1103 1st Edition Lecture 11 Outline of Last Lecture I Oxidation and Reduction II NAD H III Two Sources for ATP Formation IV Three stages of Cellular Respiration V Glycolysis VI Krebs Cycle VII Electron Transport chemiosmosis Outline of Current Lecture II Photosynthesis vs cellular respiration III The Carbon Cycle IV Chlorophyll and Chloroplasts V Light VI Two Parts of Photosynthesis a The Calvin Cycle VII Three Types of Photosynthesis Current Lecture Photosynthesis vs Cellular Respiration The Carbon Cycle o Describes journey of carbon dioxide These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute o CO2 starts out being produced usually by wood fossil fuels and then travels into atmosphere it is then consumed by plants during photosynthesis primary consumers eat these plants and so on until higher level consumers release carbon dioxide back into the environment through cellular respiration Chloroplasts and Chlorophyll o o Chlorophyll is located inside of thylakoids membranes inside of chloroplasts o It is divided into chlorophyll a and chlorophyll o Chlorophyll consists of porphyrin ring that is made of light absorbing heads and a hydrocarbon tail Light o Can be transmitted reflected or absorbed o Plants absorb light best in the 400 490 wavelength spectrum of visible light Engelmann did an experiment to prove this and showed that aerobic require oxygen bacteria also absorb light best at these wavelengths like plants would o Plants are green because they reflect green and yellow green wavelengths of light and we see the plant itself as green o Two Parts of Photosynthesis o 1 Light Reactions ATP is produced through chemiosmosis NADPH2 is produced Water is split releasing oxygen o 2 Calvin Cycle Named after Melvin Calvin for his experimentation with introducing radioactive isotopes of carbon dioxide to plants Carbon dioxide is fixed using ATP and NADPH2 The oxygen that is released from photosynthesis comes from water Three types of photosynthesis o Plants o Algae o Bacteria
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