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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. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
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 any of the minute pores in the epidermis of the leaf or stem of a plant, forming a slit of variable width that allows movement of gases in and out of the intercellular spaces.
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 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 reaction photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes.
energy pyramid An ecological pyramid is a graphical representation designed to show the biomass or bio productivity at each trophic level in a given ecosystem
producer is an organism, either a green plant or bacterium, which is part of the first level of a food chain
mitochodrian an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers (cristae).
authorphs an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
consumers is an organism that feeds on plants or other animals for energy
herbervore as any organism that eats only plants
omnivoers an animal or person that eats food of both plant and animal origin.
heteotrophs 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: DaNiel.MeRriTt