Term
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Definition
| mineral particles mixed with variable amounts of decomposing organic material |
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Term
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Definition
| decomposing organic material |
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Term
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Definition
| layer most essential for plant growth |
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Term
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Definition
| downward percolation of water and dissolved nutrients through soil |
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Term
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Definition
| loss of soil under the force of wind and water |
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Term
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Definition
| form of mutualism between a young root and a fungus |
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Term
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Definition
| when gaseous nitrogen is converted to ammonia |
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Term
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Definition
| nitrogen fixing bacteria infect roots and cause swelling |
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Term
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Definition
| hairs that grow on roots during primary growth |
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Term
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Definition
| the column that packs the vascular tissue in the plant |
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Term
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Definition
| barrier to unrestricted flow of water and solutes into the vascular cylinder |
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Term
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Definition
| a cell layer just beneath their surface |
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Term
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Definition
| ecaporation of water from leaves, stems, and other plant parts |
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Term
| Tracheids and vessel members |
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Definition
| water conducting cells of xylem |
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Term
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Definition
| water in xylem pulled upward by air's drying power, which makes a continuous negative pressure called tension |
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Term
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Definition
| vascular tissue having organized arrays of conducting tubes, fibers, and strands of parnchyma cells |
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Term
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Definition
| organic compounds rapidly flow through here in phloem |
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Term
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Definition
| load organis complunds into neighboring sieve tubes by active transport mechanisms. |
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Term
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Definition
| movements of sucrose and other organic compounds through phloem |
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Term
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Definition
| internal pressure builds up at the source end of the sieve tuve systems and pushes the solute rich solution into any sink |
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