1 / 49

Agenda: Sept 22nd

Study for Cell Test! Tables Inside the Cell. Agenda: Sept 22nd. Review for Test (tomorrow) Cell Structure and Function Types of Cells Cell’s molecules Measuring Very Small Volumes with a Micropipet Basics Prepare for Lab after test. Cell Structure & Function.

artemas-kristy
Download Presentation

Agenda: Sept 22nd

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. Study for Cell Test! Tables Inside the Cell Agenda: Sept 22nd • Review for Test (tomorrow) • Cell Structure and Function • Types of Cells • Cell’s molecules • Measuring Very Small Volumes with a Micropipet • Basics • Prepare for Lab after test

  2. Cell Structure & Function http://koning.ecsu.ctstateu.edu/cell/cell.html

  3. Eurkaryotic Cell (Eukaryote)

  4. Cell Video

  5. Cell Theory • All living things are made up of cells. • Cells are the smallest working units of all living things. • All cells come from preexisting cells through cell division.

  6. Links • Animation: Center of the cell • Centre of the Cell • Cell Biology Animation • cell structure

  7. Definition of Cell A cell is the smallest unit that is capable of performing life functions.

  8. Examples of Cells Amoeba Proteus Plant Stem Bacteria Red Blood Cell Nerve Cell

  9. Two Types of Cells Prokaryotic Bacteria Eukaryotic Animal Plant Yeast (fungus)

  10. Prokaryotic • Do not have structures surrounded by membranes • Few internal structures • One-celled organisms, Bacteria http://library.thinkquest.org/C004535/prokaryotic_cells.html

  11. Typical Bacterial Cell

  12. Eukaryotic • Contain organelles surrounded by membranes • Most living organisms Plant Animal http://library.thinkquest.org/C004535/eukaryotic_cells.html

  13. “Typical” Animal Cell http://web.jjay.cuny.edu/~acarpi/NSC/images/cell.gif

  14. “Typical” Plant Cell http://waynesword.palomar.edu/images/plant3.gif

  15. Yeast Cell

  16. Cell Parts Organelles

  17. Surrounding the Cell

  18. Cell Membrane • Outer membrane of cell that controls movement in and out of the cell • Double layer http://library.thinkquest.org/12413/structures.html

  19. Cell Wall • Most commonly found in plant cells & bacteria • Supports & protects cells http://library.thinkquest.org/12413/structures.html

  20. Inside the Cell

  21. Nucleus • Directs cell activities • Separated from cytoplasm by nuclear membrane • Contains genetic material - DNA

  22. Nuclear Membrane • Surrounds nucleus • Made of two layers • Openings allow material to enter and leave nucleus http://library.thinkquest.org/12413/structures.html

  23. Chromosomes • In nucleus • Made of DNA • Contain instructions for traits & characteristics http://library.thinkquest.org/12413/structures.html

  24. Nucleolus • Inside nucleus • Contains RNA to build proteins http://library.thinkquest.org/12413/structures.html

  25. Cytoplasm • Gel-like mixture • Surrounded by cell membrane • Contains hereditary material

  26. Endoplasmic Reticulum • Moves materials around in cell • Smooth type: lacks ribosomes • Rough type (pictured): ribosomes embedded in surface http://library.thinkquest.org/12413/structures.html

  27. Ribosomes • Each cell contains thousands • Make proteins • Found on endoplasmic reticulum (ER) & floating throughout the cell http://library.thinkquest.org/12413/structures.html

  28. Mitochondria • Produces energy through chemical reactions – breaking down fats & carbohydrates • Controls level of water and other materials in cell • Recycles and decomposes proteins, fats, and carbohydrates http://library.thinkquest.org/12413/structures.html

  29. Golgi Bodies • Protein 'packaging plant' • Move materials within the cell • Move materials out of the cell http://library.thinkquest.org/12413/structures.html

  30. Lysosome • Digestive 'plant' for proteins, fats, and carbohydrates • Transports undigested material to cell membrane for removal • Cell breaks down if lysosome explodes http://library.thinkquest.org/12413/structures.html

  31. Vacuoles • Membrane-bound sacs for storage, digestion, and waste removal • Contains water solution • Help plants maintain shape http://library.thinkquest.org/12413/structures.html

  32. Chloroplast • Usually found in plant cells • Contains green chlorophyll • Where photosynthesis takes place http://library.thinkquest.org/12413/structures.html

  33. Typical Animal Cell

  34. Human Cell

  35. Typical Plant Cell

  36. Plant Cells

  37. Yeast Eukaryotic Cell (Fungus)

  38. Yeast reproduce by budding

  39. Prokaryotic Cells: Required Structures

  40. Bacteria- Some Optional Structures

  41. Typical Bacterial Cell

  42. Microscopic View of Bacteria

  43. Genome Size The total genome size differ quite considerably in different organisms. Organism Number of Chromosomes Genome size in base pairs Bacteria 1 ~400,000 - ~10,000,000 Yeast 12 14,000,000 Worm 6 100,000,000 Fly 4 300,000,000 Weed 5 125,000,000 Human 23 3,000,000,000

  44. Genes & % of DNA

More Related