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Agriculture-1 Review
| Term | Definition |
|---|---|
| photosynthesis | the process by which plants make food |
| oxygen and glucose | products of photosynthesis |
| water and carbondioxide | reactants of photosynthesis |
| angiosperm | plants that bear flowers |
| gymnosperm | plants that do not bear flowers |
| loam | the best type of soil for planting |
| chloroplast | organelle in plant cells where photosynthesis takes place |
| mitochondria | organelle that supplies cells with energy |
| cell wall | the outermost layer of a plant cell |
| parenchyma | most abundant plant cells that store food |
| collenchyma | cells that make plants flexible |
| sclerenchyma | cells that make plants hard and strong |
| dermal | tissues that cover outer parts of plants |
| vascular | tissues that transport substances in plants |
| xylem | the system that carries water and minerals up to the leaves |
| phloem | the system that carries food from the leaves down to the roots |
| terminal bud | bud at the tip of the tree |
| lateral bud | the bud at the side of the stem |
| tracheid cells | cells that make-up the xylem |
| companion cells | cells that make up the phloem |
| tap root | type of root with a large main part |
| fibrous root | root with all the parts the same size |
| monocotyledonous seed | seed with one cotyledon |
| dicotyledonous seed | seed with two cotyledons |
| primary growth | growth that makes the shoot taller |
| secondary growth | growth that makes the plant thicker |
| cambium | the structure that makes cells for the ploem and xylem |
| lenticel | name of the pore in the stem |
| stoma | name of the pore in the leaf |
| petiole | attaches the leaf to the stem |
| stolon | a horizontal stem that grows above ground |
| rhizome | a horizontal stem that grows below ground |
| bulb | an erect stem that grows below ground and is covered with leaves |
| palisade | largest cell in the leaf |
| stomata | the pleura of stoma |
| cuticle | the waxy covering of the leaf |
| guard cells | the cells at the side of a stoma |
| transpiration | process by which plants give off water to the atmosphere |
| stamen | male part of the flower |
| carpel | female part of the flower |
| ovule | female reproductive cell of a plant |
| pollen grain | male reproductive cell of a plant |
| fertilization | process by which male and female sex cells join |
| pollination | process by which pollen grains come in contact with the stigma of a flower. |
| dormancy | period just before germination when the seed is not growing |
| germination | process by which a seed turns into a seedling or young plant |
| dispersion | the scattering of seeds |
| auxins | hormone that affect growth in the stem |
| cytokinin | hormone that affect growth in roots |
| ethylene | hormone that affect ripening of fruits |
| gibberellin | hormone that affect size of stem and fruits |
| thigmotropism | plant growth response to touch |
| phototropism | plant growth response to light |
| geotropism | plant growth response to gravity |
| hydrotropism | plant growth response to water |
| stimulus | anything that causes a plant to respond |
Created by:
CAHS SCIENCE 09
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