Compound Light Microscope. Transmission Electron Microscope (TEM)
Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses...
-
Upload
colin-craig -
Category
Documents
-
view
222 -
download
0
Transcript of Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses...
![Page 1: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/1.jpg)
Cells
![Page 2: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/2.jpg)
How do we study cells?
• Light Microscope: Magnify about 1000 times
• Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used to view individual organelles
• Ultracentrifuge: uses gravity to separate organelles by size. This is called cell fractionation.
![Page 3: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/3.jpg)
![Page 4: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/4.jpg)
Why cells are small?• As things increase
in volume the surface area to volume ratio decreases. Larger objects have less surface area to get the amount of nutrients they need from the environment
![Page 5: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/5.jpg)
Organelles and their Function
• Nucleus
![Page 6: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/6.jpg)
Organelles and their Function
• Ribosome
![Page 7: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/7.jpg)
Organelles and their Function
• Endoplasmic Reticulum
![Page 8: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/8.jpg)
Organelles and their Function
• Golgi Apparatus
![Page 9: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/9.jpg)
Organelles and their Function
• Lysosome
![Page 10: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/10.jpg)
Organelles and their Function
• Vacuoles
![Page 11: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/11.jpg)
Organelles and their Function
• Mitochondria
![Page 12: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/12.jpg)
Organelles and their Function
• Chloroplast
![Page 13: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/13.jpg)
Organelles and their Function
• Peroxisome
![Page 14: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/14.jpg)
Organelles and their Function
• Cell Membrane
![Page 15: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/15.jpg)
![Page 16: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/16.jpg)
![Page 17: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/17.jpg)
![Page 18: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/18.jpg)
Types of Cells
• Prokaryotic vs Eukaryotic. – Prokaryotic cells are the cells of bacteria– Eukaryotic cells are the cells that make up all
other organisms• Plants vs. Animal
![Page 19: Cells. How do we study cells? Light Microscope: Magnify about 1000 times Electron Microscope: uses electron beams and magnifies 1,000,000 times. Used.](https://reader036.fdocuments.in/reader036/viewer/2022062503/5a4d1b0e7f8b9ab05998d956/html5/thumbnails/19.jpg)
Prokaryotic Cells
• Have no nucleus, instead its DNA is stored in the nucleoid region.
• Only has a cytoplasm, ribosomes, and a cell membrane.