A Scientist Wants to Examine Living Cells Lining the Respiratory

Multiple Choice

A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt and mucus away from the lungs. Which of the following instruments would be best, and why?

A) a light microscope, because it allows observations of whole, live cells
B) a transmission electron microscope, because it has high resolution
C) a scanning electron microscope, because it can reveal structures on cell surfaces
D) a scanning electron microscope, because it can be used to observe whole cells without slicing them