Question

Lease select the word from the list that best fits the definition a specimen smaller than 0.2 micrometers must be completely dried out before being studied using this type of microscope.

a) Electron microscope
b) Compound microscope
c) Light microscope
d) Fluorescence microscope

Answer 1

The correct microscope to study a completely dried specimen smaller than 0.2 micrometers is an electron microscope, specifically a TEM, which requires the specimen to be thin for electrons to transmit through it.

Step-by-step explanation:

When studying a specimen smaller than 0.2 micrometers that must be completely dried out, the microscopy technique required is an electron microscope. There are two types of electron microscopes: Transmission Electron Microscopes (TEM) and Scanning Electron Microscopes (SEM). A TEM allows for very high-resolution imaging by transmitting electrons through a specimen, which means the specimen must be thin enough for electrons to pass through and therefore must be completely dried. This contrasts with light microscopes, which are typically used to view living organisms and can be enhanced by staining, although staining often results in the death of the cells.