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Do now. Take out your homework  How do vacuoles and lysosomes work together in a cell?. Single Celled Organisms Quiz. 1) In what way does mitochondria and chloroplast work together? 2) Make 3 columns; Bacteria Diatoms Dinoflagellates

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Do now

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  1. Do now • Take out your homework  • How do vacuoles and lysosomes work together in a cell?

  2. Single Celled Organisms Quiz • 1) In what way does mitochondria and chloroplast work together? • 2) Make 3 columns; Bacteria Diatoms Dinoflagellates • Put the accurate description under the appropriate column;

  3. Descriptions • Silica Cell wall • Cellulose Cell wall • Has flagella to move around • Earliest photosynthetic life • Lacks a nucleus (simple organism) • Can make and take in food • Important decomposers • Has an eye spot

  4. Effect of Salt water on Seed Germination Lab • How does the ocean affect terrestrial plants that live near the ocean? • Set it up (I want to make sure we get that done today so its coming first) • Then we will go over the chapter

  5. Marine Producers

  6. Algae Vs. Angiosperms • They are pretty different • Examples of algae are diatoms, dinoflagellates, kelp, sea lettuce etc. • Examples of marine angiosperms are sea grasses and mangroves • So what is the differences between them?

  7. Differences • Structure: • Algae are non vascular • Don’t have specialized structures to transport nutrients • Absorb nutrients directly from the water • Angiosperms are vascular • Have roots that absorb nutrients and other specialized structures that transport them throughout

  8. Specialized Structures Remember looking at this under a microscope in Biology?

  9. Differences • Reproduction • Algae lack flowers for reproduction • Angiosperms use flowers, pollen and seeds to reproduce.

  10. Algae Structure • Algae is different than land plants: • Blade: similar to leaves, where the majority of photosynthesis occurs • Gas bladder: Keeps the algae afloat, which is important to absorb light and maintain photosynthesis • Stipe: Similar to a stem, supports the blades • Holdfast: Anchors the algae to a stable substrate. UNABLE to absorb nutrients from the sediment (making it different than roots)

  11. Algae Structure • Video

  12. Algae Types • 3 Major types: • Red • Green • Brown • What’s the difference between them all? • Different pigments for photosynthesis • This makes them better for different environments • Certain wavelengths travel deeper into the ocean than others

  13. Each can live in different depths • Because of the different pigments • Green live closest to the surface • Brown can live deeper than the green algae • Red can live in the deepest out of all the algae

  14. Algae reproduction • It’s a cycle, consisting asexual reproduction and sexual reproduction • Sporophytes make spores (which are haploid) • Gametophytes make gametes which fuse to make a zygote (diploid)

  15. Breaking it down Asexual Sexual

  16. Beach Plants • Their root systems stabilize the sand and create dunes…KEEP OFF OF THEM! • Grow in the upper beach, away from the salt water • Similar adaptations to desert plants… • Waxy coatings • Water storage

  17. Angiosperms: Mangroves • Mangroves are trees that grow partly submerged in the water. • During high tide you may not see their prop roots

  18. Prop roots

  19. Ecological Function • Their roots decrease water flow, which leads to the deposition of a lot of nutrients • Also serve as protection for small fish from larger prey

  20. Reproduction • Seed pods develop while still on the tree • They fall into the ocean and float until low tide, where they will find a place to start growing

  21. Angiosperms: Seagrasses • Reproduce with flowers and pollen tubes. • The only flowering plants that live underwater • Often found in lagoons behind barrier reefs

  22. Ecological Impact • Usually serve as a protective area for fish and also a food supply for marine organisms. • Their interlocking root stabilize the sediment as well • Lots of cool organisms found living around seagrasses

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