Photosynthesis Vocabulary
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Created by:
nataliefittsy on January 4, 2011
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15 terms
Terms | Definitions |
|---|---|
 veins | carry water and minerals to the leaf and carries the products away to other parts of the leaf |
| xylem | cells made into tubes that transport water and minerals up the plant |
| phloem | vascular tissue that moves materials both up and down the plant; moves organic materials such as carbohydrates and amino acids |
| mesophyll | cells between the upper and lower epidermis of a leaf; primary site of photosynthesis in leaves |
| palisade layer | main photosynthetic tissue of most flowering plants (top) |
| spongy layer | bottom layer of mesophyll |
| epidermis | closely packed, single layer of cells, no air spaces |
| cuticle | outer, waxy covering of epidermis; water-repellent |
| stomata | pore or opening in the epidermis where gases move in and out of the leaf by diffusion |
| guard cells | pair surrounding each stoma that regulates the opening and closing of the pore |
| transpiration | evaporation of water from a leaf |
| thylakoids | flattened sacs; contain pigments and enzymes for the light reactions of photosynthesis |
| grana | stacked thylakoids |
| stroma | surround thylakoids in liquid solution; where dark reactions occur |
| chlorophyll | green pigment in two forms |
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