Term
| Five most important characteristics that help us define plants |
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Definition
| photosynthetic, multi cellular, cellulose-rich walls, sessile, adapted to live on land |
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Term
| what two main groups of adaptations allowed plants to move to land environments? |
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Definition
ability to reproduce and produce viable offspring on land.
ability to survive in land (dry) environments |
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Term
| what are the major groups of plants? |
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Definition
bryophytes - liverworts, hornworts, and mosses - all lack vascular tissue and do not posses true leaves roots or stems.
Seedless vascular plants - ferns- reproduce via windblown spores. sperm requires water for reproduction.
Gymnosperms - (trees) do not have an outer-covering or shell around their seeds. propagate via wind pollination.
angiosperms - (flowers) ovules that are enclosed within a carpel. phloem tissue composed of sieve tubes and companion cells.
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Term
| example of a mutualistic relationship in plants |
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Definition
| bacteria and nitrogen fixation |
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Term
| how do we write scientific names? |
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Definition
| genus, then species. names are italicized or underlined. |
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Term
| What goods and services to plants provide human civilization? |
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Definition
| fuel, shelter, clothing, pleasure |
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Term
| three main features that distinguish plant cells from eukaryote cells |
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Definition
| central vacuole, plastids, cell wall |
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Term
| why do we say biological membranes are semi-permeable? |
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Definition
| they allow only certain things through, such as gasses and h20 but block other things such as charged ions |
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Term
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Definition
| the diffusion of h20 through a selectively permeable membrane |
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Term
| what direction does water move between two solutions with different concentrations of solutes |
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Definition
| water will move right to left or high to low |
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Term
| is solute accumulation a way to increase water uptake from the soil? |
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Definition
| water will flow into a low water potential situation, so yes |
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Term
| most important function of chloroplasts |
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Definition
| convert light energy into chemical energy for the plant |
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Term
| most important function of the cell wall |
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Definition
| protects the cell and regulates the life cycle of the plant organism |
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Term
| what is the most important function of vacuoles |
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Definition
| stores compounds, help in plant growth |
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Term
| what is the most important function of the mitochondria |
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Definition
| break down carbs and sugar molecules to create energy |
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Term
| difference between primary and secondary cell walls? |
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Definition
cell wall maintains the shape of the cell. bonds with other cells to form the structure of the plant.
secondary cell wall actsw as a protective barrier to the uncontrolled flow of water |
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