Assessment statements What you need to know Unit activities list Key terms Helpful links

Assessment Statements:

2.1.4	Compare the relative sizes of molecules, cell membrane thickness, viruses, bacteria, organelles and cells, using the appropriate SI unit.
2.1.5	Calculate the linear magnification of drawings and the actual size of specimens in images of known magnification.

 

What You Need to Know

Know the common metric units and prefixes used in biology.

Know the relative sizes of biological structures.

State and explain the three parts of the cell theory.

How is total magnification calculated?

What is field of view and how is it calculated?

How can you estimate the size of an object under the microscope?

Distinguish between magnification and resolving power.

Describe how to determine how much larger a biological drawing is compared to “real life” (linear magnification)

Unit Activities List:

Viewing cells unit plan (doc)

Microscopy notes (pdf)

Microscopy notes blanks (doc)

Searching for scale notes (pdf)

Microscope Magnification worksheet (pdf)

Sense of scale posters (not done in 2010-2011)

Rules of lab drawing

Determining linear magnification worksheet

Key Terms:

Helpful Links:

Sense of scale

Virtual Scanning Electron Microscope

How to Use the Microscope