Chapter 2 - How We See the Invisible World

Question 1

The ____________________ lens is the lens contained in the microscope eyepiece.

Answer 1

Ocular

Question 2

A _____________________ electron microscope produces a three dimensional view of a specimen by measuring electrons knocked out of the surface of the specimen.

Answer 2

Scanning

Question 3

A differential interference contrast microscope uses two beams of light.

Answer 3

True

Question 4

Most viruses can be seen with a compound light microscope.

Answer 4

False

Question 5

Bright field microscopy can be used to see DNA.

Answer 5

False

Question 6

_____________________ is the ability of the microscope lenses to distinguish fine detail and structure.

Answer 6

Resolution

Question 7

A _____________________ electron microscope sends a beam of electrons through a ultrathin section of the specimen.

Answer 7

Transmission

Question 8

A darkfield microscope blocks out any light that is not reflected by the specimen.

Answer 8

True

Question 9

In darkfield microscopy, the sample is light and the background is dark.

Answer 9

True

Question 10

In darkfield microscopy, the sample is dark and the background is light.

Answer 10

False