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Plant Processes
sol 7.5
| Term | Definition |
|---|---|
| Photosynthesis | the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. |
| Respiration | a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances. |
| Stomata | Small opening on the underside of a leaf through which oxygen , water, and carbon dioxide can move. |
| Guard cells | each of a pair of curved cells that surround a stoma, becoming larger or smaller according to the pressure within the cells. |
| Chlorophyll | a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring. |
| Chloroplast | (in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place. |
| Light dependent reaction | The series of biochemical reactions in photosynthesis that require light energy that is captured by light-absorbing pigments (such as chlorophyll) to be converted into chemical energy in the form of ATP and NADPH. |
| Light independent react | These reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes. |
| Energy pyramid | s a graphical model of energy flow in a community. The different levels represent different groups of organisms that might compose a food chain. |
| Producer | An organism that can make its own food. |
| Mitochondrion | are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. |
| Autotrophs | an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide. |
| Consumers | a person who purchases goods and services for personal use. |
| Herbivore | an animal that feeds on plants. |
| omnivores | an animal or person that eats food of both plant and animal origin. |
| Heterotrophs | an organism deriving its nutritional requirements from complex organic substances. |
| Carnivores | an animal that feeds on flesh. |
| Decomposers | an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material. |
| Spongy layer | a layer of loosely packed and irregularly shaped chlorophyll-bearing cells that fills the part of a leaf between the palisade layer and the lower epidermis -- called also spongy parenchyma, spongy tissue. |
| Palisade layer | a layer of parallel elongated cells below the epidermis of a leaf. |
| Raw materials | the basic material from which a product is made. |
| oxygen | a colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. Oxygen forms about 20 percent of the earth's atmosphere, and is the most abundant element in the earth's crust, mainly in the form of |
| Carbon Dioxide | a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis. |
| Glucose | a simple sugar that is an important energy source in living organisms and is a component of many carbohydrates. |
| Products | an article or substance that is manufactured or refined for sale. |
Created by:
Estrella.Lorenzo
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