Plant tissue includes five basic tissues (protective tissue, conducting tissue, vegetative tissue, mechanical tissue, meristem). Plant tissue is a structural unit composed of one or more types of cells from the same source and performing the same function. The emergence of plant tissue is a higher level marker of plant evolution.
1. First of all, it is necessary to adjust the brightness. The lighting source includes natural light source and artificial light source. No matter which light source is used, in order to get a clear image during observation, its brightness must be moderate. For moderate brightness, on the one hand, you can choose a flat or concave reflector, and at the same time, you can rotate the position of the reflector to get different brightness to adjust.
2. do not take or change the glass slide under the high-power mirror to avoid damaging the lens and glass slide
3. When the observed plant tissue materials are small, it is necessary to find the observation object under the low-power microscope first, and then change the high-power microscope for observation
4. after use, the microscope should be sorted out as required.
