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Charra
9 days ago
6

A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt an

d mucus away from the lungs. Which one 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 resolving power
C. a transmission electron microscope because it is capable of very high magnification
D. a scanning electron microscope, because it can reveal structures on cell surfaces
E. a scanning electron microscope, because it can be used to observe whole cells without slicing them
Biology
1 answer:
lana [2.4K]9 days ago
6 0
A light microscope is the best option, as it enables the examination of entire, live cells. The electron microscopes, whether scanning or transmission types, are unsuitable for live cells because their electrons would damage them. It's crucial to note the distinctions between the various microscopes mentioned. The transmission electron microscope generates an image by passing electrons through the specimen, which can then be magnified and projected onto a screen. Conversely, the scanning electron microscope creates images by scanning the sample with electrons. A light microscope, often used in laboratories, utilizes visible light and magnifying lenses for viewing samples without harming living organisms.
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