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Plant Processes

sol 7.5

TermDefinition
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