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Cell Stuff

Cell Stuff. Teacher info:. Prescribed Learning Outcome(s ) & significance: Outcome: **Describe the structures and function of cell components. -Brief history of the cell -Structure and function of organelles -Contrast between prokaryotic and eukaryotic cells. Prerequisite Learning:

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Cell Stuff

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  1. Cell Stuff

  2. Teacher info: • Prescribed Learning Outcome(s) & significance: • Outcome: **Describe the structures and function of cell components. • -Brief history of the cell • -Structure and function of organelles • -Contrast between prokaryotic and eukaryotic cells. • Prerequisite Learning: • ** Possibly from earlier years: types of cells, cell organization, microorganisms, brief cell structure. • **From last class: Intro to history of cells and difference between prokaryote and eurkaryote. • Materials and Resources: • **Prepared power point, computer adapter, smart board (already set up), question sheets on cell information, boxes and bows, candy • **Have boxes, bows and candy sitting on the desk at the front.

  3. Recap from last week… • Which town drunk discovered the cell? -Hint: He figured it out while sitting in a jail cell. • Who discovered the nucleus? -Hint: His name is oddly similar to the guy who discovered the cell.

  4. Cell Theory • All living things are composed of cells • Cells are the basic units of all living things. What came first the chicken or the egg?? • New cells are produced from existing cells.

  5. Prokaryotes vs. Eukaryotes • Main differences?

  6. Prokaryotes • NO nucleus • Genetic material is free floating in an area called the nucleoid NOT a nucleus Example: Bacteria

  7. Eukaryotes • ALWAYS has a nucleus • DNA is contained within the nucleus • Have organelles surrounded by a membrane Example: Animal cell

  8. Organelles Within A Eukaryotic Cell • Each organelle contributes to the successful functioning of the cell. • Try and compare the organelles to things that are familiar to you.

  9. Cytoplasm • The portion of the cell outside the nucleus, but inside the membrane

  10. Nucleus • Main control center • Contains all of the cell’s DNA = instructions to make proteins and what not • Is surrounded by the nuclear envelope, which allows material to pass in and out of the nucleus

  11. Ribosomes • Small machines that make proteins • They receive instructions from the nucleus as to what kind of proteins they will make. Example use of proteins: Hair growth

  12. Endoplasmic Reticulum • Site where exiting materials of the cell are assembled. • When ribosomes attach to the endoplasmic reticulum we refer to it as rough endoplasmic reticulum • After the materials are assembled, the Golgi Apparatus modifies, sorts and packages the material to prepare it for exportation

  13. Lysosomes • Digest materials into smaller pieces • The smaller pieces can be held in vacuoles, which are sac-like containers

  14. Mitochondria • In almost all eukaryotic cells • Convert chemical energy from food into energy that is easier for the cell to use.

  15. Chloroplasts • All plants contain chloroplasts • Capture energy from sunlight and convert it into chemical energy in photosynthesis

  16. Structure and Transportation • The cytoskeleton is a supporting structure and transportation system in the cell. Framework of the cell. • Microfilaments and microtubules are the main proteins that make up the cytoskeleton.

  17. Microfilaments and microtubules both assist in maintaining cell shape and. • Microfilament assembly allows cells to do locomotion • Microtubules are important in cell division

  18. FUN FACT • Cells that cause disease are called PATHOGENS

  19. Cell Blackout Questions (hand out)

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