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Moves the stage up and down for focusing

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Presentation on theme: "Moves the stage up and down for focusing"— Presentation transcript:

1 Moves the stage up and down for focusing
Mindstretcher What is the total power of magnification if your objective lenses range from 4x-40x? 40X-400X 2. What is the function of the COARSE adjustment knob? Moves the stage up and down for focusing 3. Which part of the microscope holds the objective lenses? Nosepiece

2 All Cells Must Have……. Cell membranes Cytoplasm DNA

3 Prokaryotic Cells Prokaryotes No membrane bound organelles No Nucleus
Two major groups Bacteria Archaea

4 Bacteria Most Common Smallest Can live almost everywhere
DNA is long and circular Shaped like a twisted rubber band Not all Bacteria are bad!! We have bacteria on our teeth, skin, and in our digestive systems! (They help us!!!)

5 Shapes of Bacteria Have Three Shapes Sphere-Streptococcus Rod-E. Coli
Spiral- Cholera Rods Spherical Spiral

6 Archaea Different from bacteria because of Ribosomes
Archaea ribosomes are like those of eukaryotic cells Have Different cell wall and cell membrane from all other cells Live in extreme environments Extremophiles Heat-Loving Salt-Loving Methane-making Can live near volcanic vents

7 Eukaryotic Cells Have membrane bound organelles Nucleus
Largest of all cells 10 times larger than bacteria cells ALL other living things (that are not bacteria or archaea) are made of eukaryotic cells! Most Eukaryotes are Multicellular Made of many cells

8 Prokaryotic Vs. Eukaryotic Cell

9 Which one is it??!!

10 Which one is It??!!

11 Mindstretcher 10-25 1. Why are cells small?
Larger the cell the more nutrients needed and the more waste created 2. How Many parts are there to the Cell Theory (be prepared to describe each one! ) Three 3. What are the two types of Prokaryotic Cells? Archaea and Bacteria

12 Which one is It??!!

13 Which one is It??!!

14 Eukaryotic vs. Prokaryotic

15 Quick QUIZ Bubble in A for True and B for False:
Prokaryotic cells are more complex than eukaryotic cells. Eukaryotic cells are much smaller than prokaryotic cells. Both cells contain DNA. Prokaryotic cells have a nucleus. Archaea is a type of prokaryotic cell.


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