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Lesson 17
Energy for Life
| Term | Definition |
|---|---|
| ATP | essential for energy in organisms. When this chemical is broken down, it gives off energy. When this chemical is assembled, it can store energy |
| Enzymes | Any substance that speeds up the rate of a chemical reaction with out being used up in it |
| Catalysts | A substance that speeds up the rate of a chemical reaction without being changed or used up by the reaction |
| Substrate | The substance that is affected by an enzyme |
| Autotroph | is an organism that can produce its own food |
| Heterotrophs | organisms that cannot produce their own food but obtain energy from the food they eat |
| Photosynthesis | the process by which autotrophs (plants) capture light energy and convert it into food |
| Chlorophyll | a green pigment in photosynthetic cells that captures sunlight and changes the light energy into chemical energy |
| Chloroplast | a structure found in plant cells that contains chlorophyll, a photosynthetic pigment |
| Thylakoids | the membrane sacs within the chloroplast that contain the photosynthetic green pigment called chlorophyll |
| Chloroplast | a structure found in plant cells that contains chlorophyll, a photosynthetic pigment |
| Stroma | the fluid that fills the interior region of the chloroplast that surrounds the thylakoids, this is where energy is used to produce the carbohydrates (food) needed by a plant |
Created by:
ecotteacher
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