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| The process plants use to trap and make energy from sunlight is called photosynthesis. |
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| organisms that carry out photosynthesis are called autotrophs.A group that includes all plants, all algae, and some bacteria. |
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| Chlorophyll is a plant pigment that absorbs most wavelengths of sunlight except green. Because it can not take in the green wave length, it reflects the green. This is what makes makes leaves look green. |
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| Chloroplasts use light energy to make carbohydrates from carbon dioxide and water. |
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| Pigments are molecules that take in specific wavelengths of sunlight. Wavelengths of sunlight transfer energy. The most common pigment in the chloroplast is chlorophyll. |
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| There are many tiny openings in the epidermis and cuticle, usually on the underside of the leaf. These openings, called stomata, allow the exchange of carbon dioxide, oxygen and water vapor between the environment and the moist, inner tissues of the leaf. |
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| carbon dioxide + water +light energy = glucose + oxygen+ water |
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Chemical equation for Photosynthesis
6CO2 + 12H2O + Light Energy =
C6H12O6 + 6O2 +6H2O |
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| Plants have 3 kinds of organs- roots, stems, and leaves. A plants root system includes the structures that typically grow underground. Roots are important because they anchor the plant in the soil. They also absorb and transport water and mineral nutrients. The storage of water and organic compounds is provided by roots. |
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| Photosynthetic organisms use carbon dioxide and water taken from the environment, along with energy from sunlight, to synthesize the organic compound glucose. |
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| The diffusion of water or another solvent from a more dilute solution (of a solute)to a more concentrated solution (of the solute) through a membrane that is permeable to the solvent. |
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| The movement of particles from regions of higher density to regions of lower density. |
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| an organism that can make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem. |
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| The capacity to do work. Usable power (as heat or electricity); also, the resources for producing such power. |
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