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Cells and Energy

Chapter 11

Lesson 4

Cellular Respiration

Cellular respiration is a series of chemical reactions that convert the energy in food molecules into a usable form of energy called ATP

Cells process energy from food into the energy-storage compound ATP

Cellular respiration occurs in the cytoplasm and the mitochondria

Cellular Respiration

Reactions in the Cytoplasm

Reactions in the Cytoplasm

Glycolisis is a process by which glucose, a sugar, is broken down into smaller molecules

Glycolosis is the first step of cellular respiration

Reactions in the Mitochondria

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Reactions in the Mitochondria

Fermentation

A reaction that eukaryotic and prokaryotic cells can use to obtain energy from food when oxygen levels are low

Fermentation

Types of Fermentation

Alcoholic fermentation occurs in plants and yeast

Lactic acid fermentation occurs in animals, including humans

Types of Fermentation

Photosynthesis

Photosynthesis is a series of chemical reactions that convert light energy, water, and CO2 into the food-energy molecule glucose and give off oxygen

Photosynthesis

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