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plant Processes

Sol 7.5

TermDefinition
Photosynthesis the process by which a green plant turns water and carbon dioxide into food when the plant is exposed to light
Respiration the act or process of breathing
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 the green substance in plants that makes it possible for them to make food from carbon dioxide and water
Chloroplast a plastid that contains chlorophyll and in which photosynthesis takes place.
Light dependent reaction The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis
Light independent reaction The light-independent reactions, or dark reactions, of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose
Energy pyramid 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 autotrophic organism (such as a green plant) viewed as a source of biomass that can be consumed by other organisms
Mitochondrion 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.
Autotruphs 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 primarily or exclusively on animal matter
Decomposers any of various organisms (such as many bacteria and fungi) that return constituents of organic substances to ecological cycles by feeding on and breaking down dead protoplasm
Spongy layer a spongy layer of irregular chlorophyll-bearing cells interspersed with air spaces that fills the interior part of a leaf below the palisade layer
palisade layer a layer of columnar cells rich in chloroplasts found beneath the upper epidermis of foliage leaves
raw materials crude or processed material that can be converted by manufacture, processing, or combination into a new and useful product
oxygen something that sustains or fuels
carbon dioxide a heavy colorless gas CO2 that does not support combustion, dissolves in water to form carbonic acid, is formed especially in animal respiration and in the decay or combustion of animal and vegetable matter,
glucose 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 amount, quantity, or total produce
autotrophs an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Created by: Alexis.Dickerson