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# Inside The Cell

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At tour to the cell with measuring tape. For school education.

Published in: Education, Technology
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• This was so much fun, i have a bio exam coming up and this was really helpful! thank you.

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• to genetics2002 -

Thank you. Sure you can use the slides for teaching - that is what I made them for ))

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• Slides and the information is really great I teach Genetics for graduates,if you can share this i can also use some information from your slides. nmaars@gmail.com

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• Hi Marina
I am in a business job but I love genetics so I volunteer and teach a high school biology class on canine genetics to see if I can build some interest in the students. I have recently built this web site to support the class. Looks like you have a Probability in Genetics class would I bet is great. Here is my web site - Rich

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• To rianchantin

Thank you for the words. They give me enthusiasm for further work.

Actually this was my first experiment with slides for kids - usually I make them for college and university students. And in Russian.

I will translate some to English soon. Thanks!
Marina

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### Inside The Cell

1. 1. Marina Voloshina Phys-Math School, Novosibirsk State University, 2008 http://www.slideshare.net/outdoors Cell objects size and number the Cell Inside
2. 2. A look at the cell in the human scale
3. 3. 1 millimeter (mm) 5 0 average animal cells Cells are very small
4. 4. 20 μ m ( micro meters) 1 micro meter = 10 –6 meter Average human cell
5. 5. Let’s enlarge the cell to one million times
6. 6. To the size of a room 20 μ m 20 m
7. 7. real cell our × 1 000 000 1 micrometer 1 meter 1 nanometer 1 millimeter
8. 8. Come in! And look around
9. 9. The walls – cell membrane are very thin. 1 cm only 1 cm
10. 10. The Nucleus 1 0 m Nucleus – the largest part of the cell
11. 11. Nuclei of 2 neighbouring cells
12. 12. 5 cm pore 5 cm envelope Chromosomes inside chromosome 20 cm thick
13. 13. Inside the Nucleus 20 cm thick 2 – 10 m long Chromosomes No = 46 in each human cell
14. 14. Chromosomes are made of DNA – the information storage molecule The cell brain 2 mm 50 kilometers unfolded DNA of one chromosome
15. 15. In cell division the nucleus brakes down and chromosomes go out A-A-A !
16. 16. Chromosomes in cell division
17. 17. Dividing cell
18. 18. Back to non-dividing cell A-A-A !
19. 19. Endoplasmic reticulum – membrane net that fills the whole cell
20. 20. Endoplasmic reticulum makes proteins, lipids, carbo- hydrates and transport them 5 cm
21. 21. Mitochondria is the size of a table
22. 22. But there are hundreds of such « tables » all over the cell
23. 23. Better to think of mitochondria as a fireplace It produces energy ATP ATP
24. 24. Bacterial cells are the same size as mitochondria Infection ! Bacteria not allowed
25. 25. Ribosomes are the smallest organelles in your cell 2 cm
26. 26. But very important No cell can exist without them Ribosomes make proteins – the “working horses” of cell
27. 27. If ribosome would be 2 cm then an average protein – just 0.5
28. 28. The ribosomes are plenty – around 100 000 in the cell
29. 29. Ribosomes produce proteins – and cytoplasm is crowded with them Cytoplasm: thick like porridge
30. 30. Some proteins are for internal use. Others are to be secreted outwards proteins
31. 31. Cell packs them with Golgi Apparatus A size of a bag or rucksack
32. 32. Many proteins to export -> many bags. 1 – 300 Golgi in different cell types
33. 33. Some packs stay in the cell - lysosomes 20 cm
34. 34. Lysosomes are for digestion Digestive enzymes Digestive system
35. 35. Man has bones and muscles Cell has a cytoskeleton made of protein fibers and tubules
36. 36. Cytoskeleton 2 cm 0.5 cm
37. 37. microtubule microfilaments Cytoskeleton
38. 38. Plant cells up to 100 micrometers = 0.1 mm are larger
39. 39. some additional srtuctures and have
40. 40. Thick outer wall membrane, 1 cm 10 cm – meters
41. 41. Plant cell wall made of cellulose
42. 42. Chloroplasts for photosynthesis 5 meters 10 – 100 chloroplasts per a plant cell
43. 43. Photosynthesis Sun light CO 2 from the air All plants and animals exist due to Sun energy fixed in this amazing process Organic matter
44. 44. You can barely move in plant cell. Most of space is occupied with giant central vacuole Central vacuole
45. 45. Plant cells of a root
46. 46. All the measurements we done are × 1 000 000 scale Go out of cell and remember
47. 47. The end
48. 48. Links <ul><li>Information on the size of cell organelles </li></ul><ul><li>http ://www.nanomedicine.com/NMI/Tables/8.17.jpg </li></ul><ul><li>http://en.wikibooks.org/wiki/Cell_Biology/Introduction/Cell_size </li></ul><ul><li>http://www.cellbiol.ru/book/kletka/o_kletkah/razmery_kletochnyh_struktur ( russian) </li></ul><ul><li>Image credits </li></ul><ul><li>Science photo library http://www.sciencephoto.com/ </li></ul><ul><li>http:// www.ceraroot.com / eng / pc / education / investigation / </li></ul>