Light microscope, microscope can see what cell structure is
Microstructure refers to the structure that can be observed under an optical microscope.
For cells: the appearance and shape of cell wall, nucleus, endoplasmic reticulum, mitochondria, chloroplast, Golgi apparatus, etc. can be directly observed under the light microscope, which belong to the microstructure;
Note that only the shape of the organelle can be seen, and the internal detailed structure is invisible. For example, the chloroplast can only see the green oval particles, and the grana inside is a submicroscopic structure.
Submicroscopic structure refers to the structure that can be observed under the electron microscope.
For cells: cell membranes, ribosomes, various membrane structures, and the internal detailed structures of various organelles are submicroscopic structures.
Therefore, chromosomes can be seen with high magnification (belonging to light microscopes, microscopic structures).
Chromatin cannot be seen, but must be seen under an electron microscope.
Chromatin is highly spiraled into chromosomes, which can be observed under a high-power microscope after being stained with basic dyes.
