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Plant Processes
SOL7.5
Term | Definition |
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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 | the action of breathing. |
stomata stoma | is a pore, found in the epidermis of leaves, stems, and other organs, that facilitates gas exchange. |
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 | 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. |