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17. The function of microscope is to: a. make chemical analysis b. make pictures c. make X-rays examination d. see what the naked eye cannot see 18. Which statement is true about electron microscopes? a. Electron beams are focused to create a magnified image of an object b. Electron microscopes use glass lenses to focus and magnify image c. Scanning electron microscopes are used to study the details of internal cell structure d. Specimens must be sectioned to be viewed under a scanning electron microscope e. Transmission microscopes are mainly used to study cell surfaces 19. A scientist wants to magnify a pollen grain 8,000 times and examine the ridges and pore on its surface. Which of the following instruments would be the best? a. A scanning electron microscope b. A scanning light microscope c. A transmission electron microscope d. A transmission light microscope e. An inverted light microscope 20. A scanning electron microscope is used to study_ electron microscope is used to study a. Cell surfaces, internal cell structures b. dead cells, live cells c. internal cell structures, live cells d. Live cells, dead cells e. plant cells, animal cells whereas a transmission