GENERAL HISTOLOGY

Detailed explanation-1: -TEM is often used to obtain detailed images of the internal structures of cells.

Detailed explanation-2: -A microscope is an instrument that can be used to observe small objects, even cells. The image of an object is magnified through at least one lens in the microscope. This lens bends light toward the eye and makes an object appear larger than it actually is.

Detailed explanation-3: -In a transmission electron microscope, the electron beam is transmitted through the cell and provides details of a cell’s internal structures. As you might imagine, electron microscopes are significantly more bulky and expensive than are light microscopes.

Detailed explanation-4: -A transmission electron microscope would be ideal for viewing the cell’s internal structures, because many of the internal structures have membranes that are not visible by the light microscope.

Detailed explanation-5: -Light microscopes let us look at objects as long as a millimetre (10-3 m) and as small as 0.2 micrometres (0.2 thousands of a millimetre or 2 x 10-7 m), whereas the most powerful electron microscopes allow us to see objects as small as an atom (about one ten-millionth of a millimetre or 1 angstrom or 10-10 m).