Biology Chapter 04-2

Biology Chapter 04-2 - The plant stores glucose to be later...

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Chapter 4 Section 2- Cell Energy Why do you get hungry? Feeling hungry is your body’s way of telling you that your cells need energy. All cells need energy to live, grow, and reproduce. Plants get their energy from the sun. Many animal cells get their energy from food. Nearly all of the energy that fuels life comes from the sun. Plants capture energy from the sun and change it into food through photosynthesis . the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food. Plants use the energy captured by chlorophyll (found in chloroplasts) to change CO 2 and H 2 O into a simple food called glucose.
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Unformatted text preview: The plant stores glucose to be later used by the plants cells. How to Get Energy from Food Animal cells get energy from food by cellular respiration . This is the process by which cells use oxygen to produce energy from food. Other cells get energy by fermentation . This process breaks down food without the use of oxygen. Cellular respiration takes place in the mitochondria. Photosynthesis -6CO 2 + 6H 2 O + light energy C 6 H 12 O 6 + 6O 2 Cellular respiration -C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + ATP energy How do cells communicate with each other? by cell phones, of course!...
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This note was uploaded on 12/15/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.

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Biology Chapter 04-2 - The plant stores glucose to be later...

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