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Unit 4 Vocabulary

Photosynthesis and Cellular Respiration Test Review

TermDefinition
photosynthesis the process by which plants and some other organisms capture light energy and use it to make food from carbon dioxide and water
pigment a colored chemical compound that absorbs light
chlorophyll a green pigment found in the chloroplasts of plants, algae, and some bacteria
chloroplast a structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food
stomata the small openings on the undersides of most leaves through which oxygen and carbon dioxide can move
respiration the process by which cells break down simple food molecules to release the energy they contain
fermentation the process by which cells break down molecules to release energy without using oxygen
matter anything that has mass and takes up space
energy the ability to make change
molecule the smallest unit of a compound
glycoloysis the first stage of cellular respiration; glucose is split in the cytoplasm
ATP the form of energy usable by cells
glucose sugar molecule produced during photosynthesis and used during respiration
atom the smallest unit of an element
element matter in which all the atoms are the same; cannot be broken down into simpler substances
compound two or more elements that are chemically combined
Created by: skrebbeks
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