14.4 - Microscopes, MDCPS Biology EOC

The most common type of microscope in use today is

• an electron microscope.

• a compound light microscope.

• a simple light microscope.

• a stereo microscope.

Which type of microscope can create a three dimensional image of the surface structure of an object?

• scanning electron microscope

• compound light microscope

• transmission electron microscope

• stereo dissecting microscope

All of the following are true of the electron microscope EXCEPT

• the resolution is greater than that of a light microscope

• the magnification can be greater than 100,000X

• living specimens can be studied in great detail

• a narrow beam of electrons forms an image

• it takes many technical steps to prepare a specimen for viewing

Which would be best to study the structure of thousands of mitochondria?

• a scanning electron microscope

• a transmission electron microscope

• a compound light microscope

• a stereo dissection microscope

Which of the following is correct about microscopes?

• Resolution is the same thing as magnification.

• The total magnification used in a light microscope is found by reading the number on the objective lens.

• An electron microscope has the highest magnification and lowest resolution of any microscope.

• Electron microscopes are best for studying living tissue.

• The scanning electron microscope is best used to study the surfaces of cells.

A student in your Research class sees the below image through the lens of a microscope. The student is MOST likely using a(n) _______ microscope and viewing a ________.

• compound light;

  prokaryotic cell

• compound light;

  eukaryotic cell

• stereo;

  prokaryotic cell

• transmission electron;

  eukaryotic cell

• scanning electron;

  plant seed

This image of pollen grain was MOST likely produced by which type of microscope?

• a compound light microscope

• a stereo microscope

• a scanning electron microscope

• a transmission microscope

Which tool would be best used to study the internal structure of an animal cell?

• a transmission electron microscope

• a scanning electron microscope

• a compound light microscope

• an X-ray diffraction

Compound light microscopes and transmission electron microscopes are used to produce different kinds of image of cells.

Which statement best compares a difference between the images produced by the two types of microscopes?

• Compound light microscopes use many electromagnets to focus on a specimen, while TEMs use very few electromagnets.

• TEMs use electromagnets to focus on a specimen, while compound light microscopes use glass lenses.

• TEMs use small electromagnets to focus on a specimen, while compound light microscopes use rather large electromagnets.

• Compound light microscopes use weaker electromagnets to focus on a specimen than TEMs, producing an image with lower resolution.

A scientist would like a closer look at what occur when a chameleon changes color. Which type of microscope should he use to make this observation?

• a compound microscope because it produce an image with 400x magnification

• a scanning electron microscope because it can produce a 3D image of the surface of the organism

• a stereo microscope because it will allow the scientist to observe a live view of the color change

• a compound light microscope because it has stage clips that can hold the organism in place