ch06_lecture - How Cells Acquire Energy Chapter 6 Carbon...

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How Cells Acquire Energy Chapter 6
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Photoautotrophs Carbon source is carbon dioxide Energy source is sunlight Heterotrophs Get carbon and energy by eating autotrophs or one another Carbon and Energy Sources*
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Photoautotrophs* Capture sunlight energy and use it to carry out photosynthesis Plants Some bacteria Many protistans
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Linked Processes* Photosynthesis Energy-storing pathway Releases oxygen Requires carbon dioxide Aerobic Respiration Energy-releasing pathway Requires oxygen Releases carbon dioxide
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Organelles of photosynthesis Chloroplasts*
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Two Stages of Photosynthesis* sunlight water uptake carbon dioxide uptake ATP ADP + P i NADPH NADP + glucose P oxygen release LIGHT INDEPENDENT- REACTIONS LIGHT DEPENDENT- REACTIONS new water
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Electromagnetic Spectrum* Shortest Gamma rays wavelength X-rays UV radiation Visible light Infrared radiation Microwaves Longest Radio waves wavelength
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Visible Light* Wavelengths humans perceive as different colors Violet (380 nm) to red (750 nm) Longer wavelengths, lower energy
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