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a slide show about cells

a slide show about cells

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Transcript

  • 1. What is an Organism?
    • An organism is a living thing
    • It is a collection of molecules that function as a whole
    • It has a barrier between itself and its environment
  • 2. The Cell
    • The basic unit of life is a cell
    • Cells are further broken into parts called organelles
    • Just as we have organs, cells have organelles
  • 3. Single-Celled Organisms
    • Some organisms only have one cell
    • Bacteria, that cause infections and certain diseases, are living things made of only one cell
  • 4. Plants and Animals
    • Organisms we are most familiar with have many cells
    • Our bodies have around 10 trillion cells
    • Plant cells and animal cells have many similarities and several differences
  • 5. Animal Cells
    • The center or “brain” of the cell is called the nucleus
    • Ribosomes take information from the cell’s nucleus and use it to create molecules for building new organelles or new cells
    • Mitochondria “power” the cell
  • 6. Plant Cells
    • Plant Cells are similar to animal cells except for a few differences
    • Plant cells have a cell wall to maintain shape
    • Plant cells have chloroplasts to absorb sunlight
  • 7. What are the…
    • Their cells are similar but what are some differences between plants and animals?
    • Can you name a few already?
  • 8. Differences Between Plants and Animals
    • Plants have roots
    • Plants absorb carbon dioxide and release oxygen
    • Plants do not move (from place to place)
    • Plants absorb sunlight for energy
    • Animals must eat and drink
    • Animals breathe in oxygen and release carbon dioxide
    • Animals do move
    • Most of animals’ energy comes from food and water
  • 9. Credits
    • http://pics4learning.com/details.php?img=seahorse12.jpg (page 1)
    • biology.clc.uc.edu/courses/bio104/cells.htm (page 2)
    • http://www.aenvirocure.com/DB_DATA/contams/organic/images/bacteria_ab.jpg (page 3)
    • http://imagecache2.allposters.com/images/pic/PTGPOD/602613~Leopard-in-Tree-Panthera-Pardus-Mara-Kenya-Posters.jpg (page 4)
    • http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/A/AnimalCells.html (page 5)
    • http://img.sparknotes.com/figures/9/93c5cab1f150fcaaa9f2533d0a0b45c2/plantcell.gif (page 6)
    • http://www.agr.state.il.us/programs/bees/pages/bee_with_flower2.htm (page 7)