What are the cellular structures that can be seen by sub-microscopic and light microscopy respectively
Microstructures are structures that can be observed under a light microscope.
For cells, the cell wall, nucleus, endoplasmic reticulum, mitochondria, chloroplasts, and Golgi apparatus are microstructures that can be directly observed under a light microscope;
Note that you can only see the shape of the organelles, the detailed internal structure is invisible. For example, chloroplasts can only be seen as green oval particles, but the inner matrix is a submicroscopic structure.
Submicroscopic structures are those that can be observed under an electron microscope.
In the case of a cell, the cell membrane, ribosomes, various membrane structures, and the detailed internal structures of various cellular organelles are sub-microscopic structures.
Therefore, chromosomes can be seen with a high magnification microscope (which is an optical microscope, a microscopic structure).
Chromatin, however, is invisible and can only be seen under an electron microscope.
Chromatin Chromatin is highly helical and becomes chromosomes, which are stained with basic dyes and can be seen under a high magnification microscope.
Electron microscope to see the sub-microscopic structure, optical microscope to see the microstructure of the electron microscope magnification is much larger than the optical microscope, optical microscope can only see the basic structure of the cell (cell wall, cell membrane, cytoplasm, cell nucleus), a very small number of cellular organelles (chloroplasts, staining of the mitochondria), and staining of chromosomes and so on, while the electron microscope can be observed to almost any structure within the cell. any structure within the cell.
The difference between a light microscope and an electron microscope is that a light microscope can only see certain cellular structures, such as the cell wall, chloroplasts, stained chromosomes, mitochondria, the nucleus, etc., while an electron microscope can see the internal structure of the organelles as well as smaller organelles like ribosomes. In short, the light microscope can see the microstructure of the cell, and the electron microscope can see the submicroscopic structure.
