Step One
Lab Two is about "Microscopes, Cell Structure and Function"

Instructions: Click on the following links to view the Pre-Lab Lecture Tutorials on basic concepts of Microscopes.

Lab 2 Tutorial by Mitch Albers
View in YouTube

• Intro to the Microscope
• Basic Microscope Setup and Use
• How to use the Microscope Tutorial

Instructions: Click on the following links to view the Pre-Lab Lecture Tutorials on Cell Structure.

• Interactive Animal Cell
• Typical Animal Cell
• Cell Structure of Animal, Plant and Bacterial Cells
• Hot Topic: What are Stem Cells?
  • In the News!

Instructions: Click on the following links to view the Pre-Lab Lecture Tutorials on Cell Function.

• Cellular Transport
• How Diffusion Works
• How Osmosis Works
• How Facilitated Diffusion Works
• How the NA+/K+ Pump Works
  • Go Deeper into Membrane Transport
• Cell Membrane Review

Please refer to chapter 3 in Sylvia S. Mader's Human Biology texbook for more details on the Structure and Function of Cells.

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Step Two
This "Hands On" lab experiment is titled, "The Proper use of the Compound Light Microscope " These virtual exercises simulate how biologist's use microscopes in the lab.

Please go to the following links to get all the instructions for doing your experiments.

EXPERIMENT ONE:

Step One: View the Instructional Video on Using the Microscope

• Be sure to note the steps on how to properly use the compound light microscope.
• Click here to view Mitch's Tutorial on using the Virtual Microscope before starting Step Two below

Step Two: Test your skill. Practice what you have learned on a virtual microscope. The virtual scope has all the same controls found on the real thing.

• Be sure to go through the complete checklist
• Microscope controls:
  • turn knobs (click and hold on upper or lower portion of knob)
  • throw switches (click and drag)
  • turn dials (click and drag)
  • move levers (click and drag)
  • changes lenses (click and drag on objective housing)
  • select a specimen (click on a slide)
  • adjust oculars (in "through" view, with the light on, click and drag to move oculars closer or further apart)
• Practice your microscope skills and view the following slides:
  • letter "e"
  • onion root tip
  • bacterial capsual
  • blood smear

Step Three: Download and complete this form for each the 4 slides above. Note: You will not turn in but will use to complete lab activity and study for lab quiz.

EXPERIMENT TWO:

Step One: Investigate Simple Diffusion and Osmosis

• Instructions: Work through the following links and try to answer the questions with each activity.
• Lab Bench Activity
• Design of the Experiment
  • Diffusion
  • Osmosis
• Wiley Cellular Membrane Transport Interactive Exercises

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Step Four

Instructions: Test your knowledge on cell structure and function.

• Practice Quizzes
  • Microscope Parts
  • Cell Terms 1
  • Cell Terms 2
  • Diffusion & Osmosis

When you have completed taking the practice quizzes you are then ready to take the LAB 2 QUIZ in D2L. Please check the course syllabus to make sure that you complete the lab quiz by the scheduled due date. Select the following link to go to D2L:

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