[Campbell Biology P.145] Which of the following statements accurately describes a key differ... | Practice Question
Which of the following statements accurately describes a key difference or characteristic when comparing different types of microscopes mentioned in the text?
A: The SEM is primarily used to study the internal structure of cells by passing an electron beam through thin sections.
B: Light microscopes have replaced electron microscopes entirely due to recent advances in super-resolution microscopy.
C: Both SEM and TEM use electromagnets as lenses to bend the paths of electrons for focusing.
D: Cryo-electron microscopy requires specimens to be chemically fixed and stained, similar to traditional TEM, to enhance contrast.
Explanation
The text states that 'Instead of using glass lenses, both the SEM and TEM use electromagnets as lenses to bend the paths of the electrons, ultimately focusing the image onto a monitor for viewing.'