Term
| Name 3 organs found in plants. |
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Definition
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Term
| From top to bottom list the layers in a leaf. |
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Definition
| upper epidermis, palisade mesophyl, spongy mesophyl, vein (consisting of xylem and phloem) lower epidermis - containing guard cells and stomata |
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Term
| Name the clear layer of cells allowing light to enter the leaf. |
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Definition
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Term
| Name the layer of cells in a leaf that contain most stomata. |
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Definition
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Term
| Name the two tissues in a leaf vein. |
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Definition
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Term
| Name the layer of cells in a leaf that carry out the most photosynthesis. |
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Definition
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Term
| Name the pores in a leaf which allow gas exchange . |
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Definition
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Term
| Name the cells that control opening and closing of stomata. |
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Definition
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Term
| Name the layer of cells in the leaf which photosynthesise and have air spaces between them. |
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Definition
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Term
| State the function of root hair cells. |
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Definition
| Absorb water and minerals from the soil |
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Term
| State the function of xylem. |
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Definition
| tranport water from roots to leaves. |
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Term
| Describe the structure of xylem vessels. |
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Definition
| Dead tissue, hollow tubes with rings of lignin |
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Term
| What part of the xylem vessels provides strength to help withstand pressure changes as wter moves up the plant? |
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Definition
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Term
| Name the process that moves water from the soil into the roots of a plant. |
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Definition
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Term
| Name the process that moves water from the root cells into the xylem vessels of a plant. |
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Definition
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Term
| Name the process that moves water from leaves to the air. |
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Definition
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Term
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Definition
| Process by which water travels through a plant, evaporating through the stomata. |
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Term
| Name 4 factors which affect transpiration rate. |
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Definition
| Temperature, windspeed, humidity,surface area |
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Term
| What happens to the transpiration rate when temperature increases? |
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Definition
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Term
| What happens to the transpiration rate when wind speed increases? |
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Definition
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Term
| What happens to the transpiration rate when humidity increases? |
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Definition
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Term
| What happens to the transpiration rate when surface area increases? |
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Definition
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Term
| Name the tissue that transports sugar in a plant. |
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Definition
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Term
| Describe the structure of phloem. |
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Definition
| phloem cells have seive plates and they have associated companion cells. |
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Term
| Where does phloem transport sugar from and to? |
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Definition
| from leaves to all parts of the plant - down to roots and up to shoots / flowers |
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Term
| Is phloem tissue alive or dead? |
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Definition
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