click below
click below
Normal Size Small Size show me how
plant processes
sol 7.5
Term | Definition |
---|---|
photosynthesis | the complex process by which carbon dioxide, water, and certain inorganic salts are converted into carbohydrates by green plants, algae, and certain bacteria, using energy from the sun and chloro |
respiration | the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells, and the oxidation products, carbon dioxide and water, are given off. |
stomata | any of various small apertures, especially one of the minute orifices or slits in the epidermis of leaves, stems, etc., through which gases are exchanged. |
guard cell | either of two specialized epidermal cells that flank the pore of a stoma and usually cause it to open and close. |
chlorophyll | the green coloring matter of leaves and plants, essential to the production of carbohydrates by photosynthesis, and occurring in a bluish-black |
chloroplast | plastid containing chlorophyll. |
light dependent reaction | light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule A |
light independent reaction | dark reactions, of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. |
energy pyramid | is a graphical model of energy flow in a community. The different levels represent different groups of organisms that might compose a |
producer | Ecology . an organism, as a plant, that is able to produce its own food from inorganic substances |
mitochondrion | an organelle in the cytoplasm of cells that functions in energy production. |
autotrophs | any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists. |
consumers | an organism, usually an animal, that feeds on plants or other animals. |
herbivore | a herbivorous animal. |
omnivores | someone or something that is omnivorous. an omnivorous animal. |
heterotrophs | an organism requiring organic compounds for its principal source |
carnivores | insectivorous plant. |
decomposers | n organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler substances. |
spongy layer | 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, gaseous element constituting about one-fifth of the volume of the atmosphere and present in a combined state in nature. It is the supporter of combustion in air and was the standard of atomic, combining, and molecular weights until |
carbon dioxide | a colorless, odorless, incombustible gas, CO2, present in the atmosphere and formed during respiration, usually obtained from coal, coke, or natural gas by combustion, from carbohydrates by fermentation, by reaction of acid with limestone or other carbona |
glucose | sugar, C6H12O6, having several optically different forms, the common dextrorotatory form (dextroglucose, or -glucose) occurring in many fruits, animal tissues and fluids, etc., and having a sweetness about one half that of ordinary sugar, and the rare le |
products | Chemistry . a substance obtained from another substance through chemical chang |