Concept 6.1: Biologists use microscopes and biochemistry to study cells

Question 1

is a measure of the clarity of the image

Answer 1

resolution

Question 2

is the difference in brightness between the light and dark areas of an image.

Answer 2

contrast

Question 3

the membrane-enclosed structures within eukaryotic cells

Answer 3

organelles

Question 4

focuses a beam of electrons through the specimen or onto its surface using magnets

Answer 4

electron microscope

Question 5

is especially useful for detailed study of the topography of a specimen

Answer 5

scanning electron microscope

Question 6

is used to study the internal structure of cells

Answer 6

transmission electron microscope (TEM)

Question 7

A useful technique for studying cell structure and function is

Answer 7

cell fractionation