Organisms live only where they can get the things they need Each different organism called a species Why special? How do you tell them apart? What characteristics do humans share? 2 legs, arms, eyes, 10 fingers toes Look at page A9 to see many possibilities in God’s creation – 30 million kinds Humans, dogs, cats, insects
Janssen – developed compound microscope Hooke - looked at cork cells in microscope Leeuwenhoek – viewed “wee beasties”
This theory is developed in the 1800’s by Theodor Schwann, Matthias Schleiden and Rudolph Virchow Points out similarity among very different organisms – all made of cells
Do safety rules first Give blank microscope worksheet to fill out for extra credit points – see how much they remember from last year!
There are basic need living things need to survive = this equals interaction with the many things around an organism CYCLES “here are the needs” Energy = sun is our main source, photosynthesis; food – eating other organisms Water – living things are made up of 70% water and need to keep it that way – blood, sap, dissolving medium Oxygen Minerals (raw materials are nonliving things) Reinforcement worksheet p 5
Have them label and color in the parts and list function Bring up that Real-World applications from A21 – cell walls made of cellulose – cotton, lumber , paper, etc. Quiz
In small group your objective is create a Venn Diagram that compares and contrast plant and animal cells FILL THIS IN AT SCHOOL! Create model of a cell Quiz
Structure and function of cells
Structure and Functionof Cells
Species Group of organisms Share certain characteristics Can mate and produce offspring
SO…..True or FalseA = TrueB = FalseMembers of different species that mate can produce fertile offspring.Members of the same species share similar characteristics.A dog and a cat are the same species.
Cell Discovery Web QuestPage 32in our texthttp://filscience.wikisp aces.com/History+ %26+the+Cell+6th+G rade
Cell Theory Theory stating All living things are made of cells that the cell is the basic unit of all living organisms, only living cells can produce new living cells
Cell Theory1663 – Robert Hooke discovers cells1683 – Leeuwenhoek observes “very little animalcules”1831 – Brown discovers the cell nucleus1838 – Schleiden and Schwann propose the cell theory1855 – Virchow states that cells could come only from other living cells
MicroscopesCompound Microscope = microscope having more than one lensParts of the microscope
Microscope GuidelinesHold arm with one hand and base with other handDO NOT set on edge of table or counterALWAYS store on low powerFocus FIRST on low power using course adjustment
Microscope GuidelinesAdjust diaphragm under the stage to adjust the amount of lightTurn to medium power, then high power using fine adjustment for exact focusingClean eyepiece and objectives with lens paper ONLY!
Parts of Animal/Plant Cells and theirFunction Animal Cell Handout Plant Cell Handout
Comparison of Plant And Animal Cell PLANT ANIMAL