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EOC Recaps

This overview delves into critical plant processes such as photosynthesis, where sunlight enables the conversion of carbon dioxide and water into glucose. It distinguishes between light-dependent and light-independent reactions. The reproduction mechanisms of plants, including sepals, petals, stamen, carpels, stigma, style, and ovaries, are outlined. Additionally, it covers essential ecological concepts including biomes, biotic and abiotic factors, nutrient cycles, food chains and webs, population growth dynamics, and the principles of ecological succession.

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EOC Recaps

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Presentation Transcript

  1. EOC Recaps Plants and Ecology

  2. Plant Processes Photosynthesis • Carbon dioxide and water are converted into glucose using the sun’s energy • Light dependent reactions – need the sun • Light independent – do not need sunlight

  3. Plant Processes Reproduction • Sepal – outside cover over petals • Petals – protect reproductive organs; pretty • Stamen – male structure; contains pollen • Carpel – female structure; innermost structure • Stigma – holds pollen grains where they land • Style – tube from stigma to ovary • Ovary – female gametophyte formed here

  4. Ecology Biomes • Determined by temperature and rainfall • When in doubt answer about rain Biotic and Abiotic Factors • Biotic – living • Abiotic – non-living

  5. Ecology Cycles • Bacteria play a huge role in the breakdown of organic materials in the nitrogen, phosphorus, and carbon cycles • Cycles include: Hydrologic (water), carbon, oxygen, nitrogen, and phosphorus

  6. Ecology Limiting Factors - any factors that slows or halts population growth Food Chain – one group of feeding relationships Food Web – every feeding relationship in the ecosystem Food Pyramid – shows the energy, organisms, or biomass available at each trophic level

  7. Ecology Growth • Exponential growth – growth without limits • J-curve graph • Logistic growth – growth with limits • Curve levels off • Carrying capacity – maximum number of organisms an ecosystem can support

  8. Succession • Primary succession – the introduction of organisms from bare rock (think volcanic eruption) • Secondary succession – the re-introduction of organisms after an upheaval (like a forest fire)

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