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Introduction to the Cell Microscope

Introduction to the Cell Microscope. http://highered.mcgraw-hill.com/sites/0070723648/student_view0/online_student_text.html. The  Username is  DiscSci8 and the Password is Student8. Today we will:. Define cell Learn what makes a living thing different from a non-living thing

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Introduction to the Cell Microscope

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  1. Introduction to the Cell Microscope http://highered.mcgraw-hill.com/sites/0070723648/student_view0/online_student_text.html The  Username is  DiscSci8 and the Password is Student8.

  2. Today we will: • Define cell • Learn what makes a living thing different from a non-living thing • Learn how to handle a microscope • Learn the parts of the microscope

  3. Define cell as: the basic, functional unit of life All living things are made of cells (cell theory).

  4. http://web.buddyproject.org/web019/web019/blood.html

  5. View Model of a Cell

  6. Observing Plant and Animal Cells • Onion cells • Onion cell short video

  7. Characteristics of Living Things ( 4 according to your textbook) All living things... • Grow • Move • Respond to stimuli • Reproduce

  8. Growth A result of the cells in your body increasing in number New cells will grow to replace old cells that die.

  9. Movement • A change in position, shape or location (locomotion)

  10. Animals might have wings, legs or fins to move from one location to another.

  11. http://www.kidzone.ws/animals/monarch_butterfly.htm

  12. http://www.vanaqua.org/education/aquafacts/killerwhales.html

  13. Plants might have stems that change position with the sun.

  14. The sensitivity plant: • http://www.youtube.com/watch?v=BVU1YuDjwd8

  15. Respond to Stimuli Stimulus: anything that causes an organism to react. Maybe external or internal

  16. Identify the stimulus & response

  17. Reproduction Producing more of the same kind (offspring)

  18. We know that all living things are made up of cells. How big are cells? http://learn.genetics.utah.edu/content/begin/cells/scale/ How do we see those cells?

  19. Under the microscope…. • http://school.discoveryeducation.com/lessonplans/interact/vemwindow.html

  20. The microscope Who invented the first microscope? • Links: • Text history • Timeline • Short history • A few good links such as founding fathers • Nice history with pictures

  21. The Compound Light Microscope

  22. The Compound Light Microscope

  23. Quiz – Quiz Trade • 11 Microscope terms. classtools.net

  24. Handling the Microscope • How do we carry a microscope? • How do we put away a microscope?

  25. Links • The Light Microscope (first 8 minutes) • Science Skills – Microscope (5 minutes) • YouTube.com • How to correctly use a microscope (1min43sec) • the flip side

  26. Microscope Mania • http://sciencespot.net/Media/micromyspic.pdf • Best link: • http://mason.k12.il.us/havanajh/mystery/

  27. Magnification Power • The magnification power of a lens is the number of times larger an image looks under the lens. • If you look on each objective there is a number which states its magnification power. Usually: Low power (4x), Medium power (10x), High power (40x) and the ocular lens is (10x)

  28. HOW MUCH BIGGER IS IT? • To calculate the total magnification of each objective lens multiply the power of the ocular lens by the power of the objective lens. • Example for total magnification using low power: Low power objective lens x eyepiece lens 4 x 10 = 40. The total magnification using low power is 40.

  29. The scoop on the scope… • We can see better details with higher magnification but we can not see as much of the image!

  30. Question???? • What are the powers of magnification for each of the objective lenses on our microscopes? • Low Power – • Medium Power- • High Power-

  31. Remember …Total Magnification is power of objective lens power of eyepiece lens

  32. Matching Game • http://www.quia.com/mc/509402.html

  33. Questions… • 1. What is a cell? • 2. What is the total magnification for the medium power objective lens? • What are the four characteristics of living things?

  34. Homework… page 401 • Questions 2, 3, 5,6,7 • No need to write the answers down …. Yet…. But think about how you would answer these questions.

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