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P and R Science Test

Photosynthesis and Respiration Test Study Guide

QuestionAnswer
What is an autotroph? an organism that makes it's own food/energy (independent) Ex. plants
What is a heterotroph? an organism that depends on other organisms to supply their energy/food (dependent) Ex. humans and animals
What is Chlorophyll? a green pigment in the chloroplast
What are Stomata? an opening in the underside of a leaf. Lets out oxygen and brings in carbon dioxide
What is Photosynthesis? The process in which a plant captures energy from the sun- chlorophyll absorbs the energy in the chloroplasts (Stage One) uses sun energy, carbon dioxide, and water to make sugars for energy/food and oxygen (Stage Two)
Carbon Dioxide + Water ------> Light Energy = Sugar + Oxygen Photosynthesis, opposite for respiration
What is respiration? When cells break down sugars and release the energy
What is Stage 1? In the Cytoplasm, molecules of glucose are broken down into smaller molecules
What is Stage 2? In the Mitochondria, the smaller molecules use oxygen to further break down the molecules which releases the energy
Sugar + Oxygen -----> Carbon Dioxide + Water + Energy Respiration equation
What is Fermentation? When the body can't supply the cells oxygen anymore, fermentation supplies the cells with energy without using oxygen
What are the two kinds of fermentation? Alcoholic which occurs in yeast and Lactic Acid which occurs in muscles in the body
Created by: Happyguy6
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