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Plant Processes

SOL 7.5

TermDefinition
photosynthesis formation of carbohydrates from carbon dioxide and a source of hydrogen (such as water) in the chlorophyll-containing cells (as of green plants) exposed to light
respiration the physical and chemical processes (such as breathing and diffusion) by which an organism supplies its cells and tissues with the oxygen needed for metabolism and relieves them of the carbon dioxide formed in energy-producing reactions
stoma any of various small simple bodily openings especially in a lower animal
guard cells each of a pair of curved cells that surround a stoma, becoming larger or smaller according to the pressure within the cells.
chloroplast in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place.
light dependent reaction take place in the thylakoid membranes of organelles called chloroplasts.
light independent react these reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes.
energy pyramid Biomass pyramids show how much biomass is present in the organisms at each trophic level, while productivity pyramids show the procreation or turnover in biomass.
producer n autotrophic organism (such as a green plant) viewed as a source of biomass that can be consumed by other organisms
mitochondrion any of various round or long cellular organelles of most eukaryotes that are found outside the nucleus, produce energy for the cell through cellular respiration, and are rich in fats, proteins, and enzymes
auto trophs an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
consumers an organism requiring complex organic compounds for food which it obtains by preying on other organisms or by eating particles of organic matter
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. a device or installation that is used to break down a chemical substance.
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 reactive element that is found in water, in most rocks and minerals, in numerous organic compounds, and as a colorless tasteless odorless diatomic gas constituting.
carbon dixide 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 specifically : the sweet colorless soluble dextrorotatory form that occurs widely in nature and is the usual form in which carbohydrate is assimilated by animals
products the number or expression resulting from the multiplication together of two or more numbers or expressions
Created by: jose.nieto