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| Small protein in pancreas. its a hormone. secreted into the body stream and stimulates movement of sugar into cells to use for energy. |
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| happens when water moves from low concentration (high concentration of solute) to high concentration (low concentration of solute) |
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| groups of cells performing the same function |
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| everything (part of plant) above ground including tubers |
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| every part of a plant that is under ground including aerial roots and excluding tubers |
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| swollen stems that store food = starch, potatoes, beets. |
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| term for groups of tissue in which growth occurs in plants |
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| non-woody plants (herbs, have no bark) |
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| makes up the majority of the plant and is found as a layer beneath the epidermis |
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| make up Phloem tissue, have perforated end walls through which cytoplasm extends |
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| the production of glucose from water, carbon dioxide and sunshine. |
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| the production of gases when glucose and oxygen are are used to make energy by the cell |
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| found just below the upper epidermis. long, rigid rectangular cells packed tightly together that are exposed to suns rays, responsible for photosynthesis |
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| Xylum and phloem bunched together |
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Definition
| attraction of water molecules to other water molecules |
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| attraction of water molecules to other molecules of other substances than water |
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| a pressure created in the xylum in the flowing manner |
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| blisters or slashes on stems. provide alternate pathway for gas exchange in plant |
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| the effect on plant cells when water leaves the plant through osmosis because the solution has a greater amount of solute than the plant (hypertonic solution) |
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Definition
-in the leaf the phloem gets loaded with sugar, water then moves into the cells by osmosis.
-in-turn water moves into sieve cells increasing the water pressure in the cells. this pressure in the sieve cells pushes sugar and water in the phloem to other parts of the plant |
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| a change in the environment that causes a reaction by an organism |
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plants growing toward light
response of plant to the stimulus of light |
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| stem growing toward light |
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Definition
| roots grow away from light |
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Definition
| plants responding to earths gravitational force through growth movement. |
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| roots grow toward the force |
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| stems grow against the force |
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