1 / 30

Characteristics of Living Things and Cell Structure

Explore the characteristics that all living things must have, including DNA and being made of cells. Learn about the structure and importance of the cell membrane, as well as the different types of cells and their organelles.

smartt
Download Presentation

Characteristics of Living Things and Cell Structure

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lets Review • What are some characteristics that all living things must have?

  2. Lets Review • All Living things have DNA and are made of cells. • What is DNA? • What is a Cell?

  3. Lets Review • All cells have a cell membrane. • WHY must all living things have a cell membrane? • How is the structure of the cell membrane important?

  4. Cell Structure & Function 1/5/2020 4

  5. If you took all living things in the entire world…you could divide them into 2 groups based on the type of cells they have

  6. BACTERIA! Two Major Types of Cells Prokaryotic- “simple” cells Also known as….. Eukaryotic- “complex” (complejo) cells Examples are… ALL LIVING THINGS THAT ARE NOT BACTERIA (plants, animals, fungus)

  7. Bacteria Cell

  8. Eukaryotic • Contain a nucleus and other organelles (smaller parts) surrounded by membranes – complex cells • Most living organisms have these type of cells Animal cell Plant cell

  9. Prokaryote: -has no organelles (no nucleus) Prokaryote vs. Eukaryote Both: -are living -have DNA -are cells Eukaryote: -has organelles (has a nucleus) PRO – NO EU - DO

  10. Cell Parts Organelles: “little organs” Think of a cell as a factory- lots of separate people, departments, and machines that each have their own task, but they work together to get a job done.

  11. Animal Cell

  12. Cell Membrane Cell Membrane surround the cell control entrance and exit of materials, thereby maintaining internal balance

  13. Inside the Cell

  14. Cytoplasm • Cytoplasm: contains and holds in place all other organelles • Gel-like material; the “goop” of the cell

  15. Ribosomes • Ribosomes (like the factory assembly line): put together proteins • Each cell contains thousands

  16. Flagella • Flagella (like factory trucks/18-wheelers): can move the whole factory if needed • Allow the cell to move (many single-celled organism have flagella)

  17. Nucleus • Cell nucleus: the “boss” of the cell • Directs all cell activities • Contains genetic material – DNA • Nucleus holds Nucleic Acid

  18. Endoplasmic Reticulum • Endoplasmic reticulum move materials around in cell • Smooth type: has no ribosomes • Rough type (pictured): has ribosomes in surface

  19. Mitochondria • Mitochondria: the “power plant” of the cell • Way to remember: “mighty mitochondria” • Produces energy through chemical reactions – breaking down fats & carbohydrates

  20. Golgi Bodies (Apparatus) • Golgi bodies: • Packages and ships materials in the cell

  21. Lysosome • Lysosomes (think “lysol”): cleans the cell • Transports undigested material to cell membrane for removal • Contains digestive enzymes

  22. Plant cells on Monday • MAKE SURE YOUR ANIMAL CELL DIAGRAM IS COMPLETELY LABELED • On back of first page list all parts in animal cells that are also found in prokaryotic cells • FINISH ANALOGIES for animal cells • If something still doesn’t make sense watch the eukaryote video under pbl instructions • Last 10 minutes of class you will have the prokaryote quiz

  23. Plant Cells • Also eukaryotic • Looking at the diagram, what does it have in common with animal cells?

  24. Vacuoles • Vacuoles (like water tower): the “storage container” of the cell • Help plants maintain shape- very large in plants

  25. Chloroplast (plants only) • Chloroplasts (like factory solar energy plants): turns energy from the sun into food • Where photosynthesis takes place

  26. Cell Wall (plants only) • Cell Wall (like factory outer walls): further protects the cell and provides strength

  27. Go ahead and finish the worksheet

  28. LETS REVIEW YESTERDAY WHAT IS PASSIVE TRANSPORT?

  29. WHEN THINGS PASS THROUGH THE CELL HAS TO BE SMALL TAKES NO ENERGY

  30. 2 TYPES: DIFFUSION: GAS PASSING THROUGH THE CELL FROM HIGH TO LOW CONCENTRATION OSMOSIS: WATER PASSING THROUGH THE CELL FROM HIGH TO LOW CONCENTRATION

More Related