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photosynthesis
vocabulary term
Term | Definition |
---|---|
Carbon dioxide | a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. |
oxygen | a colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. |
glucose | a simple sugar that is an important energy source in living organisms and is a component of many carbohydrates. |
photosynthesis | the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. |
autotrophs | an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide. |
chroplast | (in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place. |
chlorophyll | a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. |
stoma | 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. |