Chp 6 Bio

When biologists wish to study the internal ultrastructure of cells, they most likely would use:
A. a light microscope
B. a scanning electon microscope
C. a transmission electonic microscope
D. both A and C
E. A,B, and C

A primary objective of cell fractionation is
A. to view the structure of cell membranes.
B. to determine the size of various organelles.
C. to identify the enzymes outside the organelles
D. to crack the cell wall so the cytoplasmic contents can be released.
E. to seperate the major organelles so their particular functions can be determined.

Which of the following are prokaryotic cells?
A. plants
B. fungi
C. bacteria
D. animals
E. both B and C