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Chapter 4: Section 3 - Energy for Life
Vocabulary
4
Science
7th Grade
11/07/2011

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Term
Respiration
Definition
process by which producers and comsumers release stored energy from food molecules
Term
Fermentation
Definition
process by which oxygen-lacking cells and some one-celled organisms release small amounts of energy from glucose molecules and produce waste such as alcohol, carbon dioxide and lactic acid
Term
Photosynthesis
Definition
process by which plants and many other producers use light energy to produce a simple sugar from carbon dioxide and water and give off oxygen
Term
Metabolism
Definition
total of all chemical reactions in an organism
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