Horticulture Semester Review Part 2
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30 terms
Terms | Definitions |
|---|---|
 Anther | a sac-like structure at the top of the stamen that contains pollen |
| Apical Meristem | Primary growth area in stems. |
| Cellular respiration | chemical reaction in which stored food energy is made available for plants and animals |
| Chloroplast | An organelle found in plant and algae cells where photosynthesis occurs. |
| Fertilization | the joining of a sperm cell and an egg cell |
| Filament | the thin stalk that holds up the anther |
| Flower | the reproductive organs of a plant |
| Fruit | the reprodicutive body of a seed plant consisting of one or more seeds and usually various protective and supporting structures |
| Leaf | an outgrowth from a plant that constitutes part of the foliage and functions primarily in food manufacture by photosynthesis |
| Ovary | the lower part of the pistil that contains one or more ovules or the part in which the eggs are produced and seeds develop |
| Petal | leaf-like strucutres located inside the sepals that are often colorful |
| Photosynthesis | the manufacture of food by green plants in which carbon dioxide and water are combined in the presence of light and chlorophyll to form sugar and oxygen |
| Pistil | the female reproductive parts of the flower |
| Pollination | the transfer of pollen from the anther to the stigma of the flower |
| Root | the lower portion of a plant that bears neither leaves nor reproductive organs and that mostly develops underground and anchors the plant, the hairs absorb water and mineral nutrients |
| Sepal | green leaf-like structure on the exterior of a flower |
| Stamen | the male reproductive parts of a flower |
| Stem | stalk, trunk, or branch of a plant; can be vertical or horizontal |
| Stigma | structure found at the top end of the pistil that contains a sticky surface on which pollen can be caught |
| Stomata | the pores or openings in the epidermis of a leaf that allow the exchange of oxygen, carbon dioxide, and water vapor |
| Style | the tube in the pistil that leads fromthe stigma to the ovary and through which pollen reaches the ova and egg |
| Transpiration | the water loss from plant tissues |
| Clay | fine-grained soil; smallest soil particle |
| Complete fertilizer | contains all three of the primary fertilizer nutrients (nitrogen, phosphorus, and potassium) |
| Fertilizer | any material used to provide nutrients that plants need |
| Growth regulators | hormones and synthetic chemicals that inhibit or modify plant growth and development |
| Hormones | chemical messenger substance that affects plant growth |
| Nitrogen | odorless, colorless nutrient needed for plant gowth |
| Nurtrient | a chemical element required for plant growth |
| Organic matter | decayed remains of plants and animals |
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