Photosynthesis
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15 terms
Terms | Definitions |
|---|---|
 photosynthesis | the process by which light energy, water, and carbon dioxide are converted to glucose and other organic compounds in a plant |
| stomata | pores in the epidermis of leaves that allows for gas exchange between the plant and outside air (stoma=singular) |
| guard cells | cells that surround the stomata and regulate its opening and closing |
| mesophyll | the interior tissue of leaf where chloroplasts are mainly found |
| chloroplast | an organelle found in the photosynthetic parts of a plant that absorbs sunlight and uses it to drive the synthesis of organic compounds |
| chlorophyll | green pigment in the chloroplast of plants; necessary for photosynthesis |
| stroma | the fluid portion inside the chloroplast that surrounds the thylakoid membrane; where the dark reaction takes place |
| thylakoid | a sac-like organelle within a granum where light energy is concerted to chemical energy |
| granum | a stack of thylakoid sacs inside the chloroplast (grana=plural) |
| photosystem | light harvesting unit found in the thyakoid membrane |
| photosystem I | photosynthetic light reaction that produces ATP |
| photosystem II | photosynthetic light reaction that produces ATP and NADPH |
| calvin-benson cycle | a "dark" reaction, or light - independent reaction, which produces glucose; takes place in the stroma of the chloroplast |
| photophosphorylation | process of the light reactions of photosynthesis where the thylakoid membrane is used to generated ATP from ADP and phosphate ions |
| van Helmont | a Belgian physician who designed an experiment to determine where a plant gets the nutrients necessary for its growth |
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