3Metric SystemExamine the SI units in Table 1(page 50). How many meters are there in a kilometer? How many centimeters are in a meter?
4Opener What is ONE major benefit to the metric system? How does the metric system work?How have microscopes benefitted you???
5Metric SystemThe Metric System is the International System of measurement.It is based on powers of 10.Why might it be important to have a universal system of measurement?Scientist need to have a “common ground” for performing experiments.
8Light MicroscopeLight microscopes have 2 lenses and a source of light.Objective Lens & Ocular LensEach lens has its own MAGNIFICATION.You multiply each lens’s magnification to get the total magnification10x times 40x = 400x
9Electron Microscope Electrons are shot at the object. Electrons then bounce off, or pass through the object to create an image.Can magnify up to 200,000 times.
10In your book on page __ Transmission Electron Microscope Scanning Electron Microscope
14Cell Theory All living things are made of one or more cells Three PartsAll living things are made of one or more cellsCells are the basic units of structure and function in the organismsAll cells arise from existing cells.
15PROkaryotes vs. EUkaryotes Observe the three cells:Cite 3 differences between the cellsThink organelles!
16PROkaryotes & EUkaryotes Single celled or Multi- cellular organisms.HAVE true nucleusHave ORGANELLESProkaryotesSingle Celled OrganismsNO true nucleusProkaryotes have little internal structure
17Left SideDescribe Similarities and Differences in Light and Electron MicroscopesSimilaritiesDifferences
18Cell Membranes The Cell encloses the cell and holds in the CYTOPLASM. The Cell membrane is a PHSOPHOLIPID BI-LayerThe cell membrane regulates what enters the cell
19Opener 2/2/2012One day you found out that there was a great need for shoes in the world. You decided you wanted to open a shoe factory. What would need to do this???BE DESCRIPTIVE! You need a list of at least 8 components!
20Opener Page ____ Develop an analogy for an ANIMAL cell. You must include:Cell MembraneNucleusNucleolusMitochondriaGolgi BodyRibosomeEndoplasmic Reticulum (Smooth & Rough can be 1)CytoplasmLysosomes