Exploring Life

What does a microscope do?

• makes small objects appear larger

• makes large objects appear smaller

• makes large distant objects appear closer

Who was the English scientist who observed and named cells?

• Anton van Leeuwenhoek

• Robert Hooke

• Richard Virchow

Who was the merchant who made early improvements to the microscope?

• Anton van Leeuwenhoek

• Robert Hooke

• Richard Virchow

How many times larger was the magnification in Leeuwenhoek's microscope?

• 150

• 270

• 320

• 70

What are the two main types of microscopes?

1.

2.

• light microscopes

• gamma microscopes

• electron microscopes

• compound microscopes

If a light microscope has more than one lens it is called a...

• telescope

• dissecting microscope

• compound microscope

• stereo microscope

The lens near the object being observed is called the...

• magnifier

• ocular lens

• subjective lens

• objective lens

The lense that the observer is looking through is called the...

• magnifier

• ocular lens

• subjective lens

• objective lens

What does the term resolution refer to?

• how sharp an image is

• how big an image can be

• how many lenses a microscope uses

• how much light is needed to see an image

What kind of electron microscopes are used to study extremely small things like cell structure?

• Transmission Electron Microscopes (TEM)

• Scanning Electron Microscopes (SEM)