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Published byAlyson Hodges Modified over 9 years ago
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Cell Energy Photosynthesis Cellular Respiration Fermentation How do cells obtain the energy required to function properly?
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Cell Energy Cells need energy to function Organisms must obtain energy and process it into a form that their cells can use
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Cell Energy Plant cells use photosynthesis to obtain usable energy Plant and animal cells use cellular respiration to obtain usable energy
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Photosynthesis How plant cells turn light energy into a usable energy Chlorophyll is a green pigment, a group of molecules in the chloroplast of plant cells, that absorb the sun’s light energy Plant cells use the captured light energy to change carbon dioxide and water into glucose, a simple sugar it uses as food Plant cells use the energy stored in glucose
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Cellular Respiration How cells turn energy from glucose into a usable energy Mitochondria change oxygen and glucose into carbon dioxide, water, and energy in the form of ATP Cells use the energy stored in ATP
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Cell Energy Photosynthesis Occurs in plant cells Initial energy comes from the sun’s light energy Occurs inside the chloroplast Light Energy, Water & Carbon Dioxide are required Glucose & Oxygen are produced Cellular Respiration Occurs in plant & animal cells Initial energy comes from glucose Occurs inside the mitochondria Glucose & Oxygen are required Carbon Dioxide, Water & ATP are produced
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Fermentation Method cells use to turn glucose into a usable stored energy when oxygen is not present A small amount of ATP is produced from only partial breakdown of glucose
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