Which organelles can be seen under a light microscope and under an electron microscope?
1. Organelles that can be seen under a light microscope include: mitochondria, chloroplasts, vacuoles, nucleoli and other structures with a size exceeding 0.2 microns.
2. The organelles that can be seen under an electron microscope are: mitochondria, chloroplasts, Golgi apparatus, endoplasmic reticulum, centrosomes, lysosomes, vacuoles, ribosomes, peroxisomes, microbodies, bacterial plasmids, mitochondria, center body, Golgi apparatus, pits on the cell wall, etc.
Things to note when using a microscope:
1. You must be proficient in and strictly implement the operating procedures, and operate the microscope in accordance with strict procedures and instructions.
2. When picking up and delivering the microscope, be sure to hold the curved arm with one hand and support the base with the other hand. The microscope cannot be tilted to prevent the eyepieces from slipping out of the upper end of the tube. Be careful when handling the microscope.
3. When observing, do not move the position of the microscope at will.
4. The optical part of the microscope can only be wiped with special lens cleaning paper. Do not wipe it with other objects, and do not touch the lens with your fingers to avoid sweat staining the lens.
5. Keep the microscope dry and clean to avoid contamination by dust, water and chemical reagents.
6. When converting the objective lens, do not move the objective lens, only rotate the converter.
7. Do not turn the focusing handwheel at will. When using the micro focus knob, use gentle force and rotate it slowly. Do not turn it hard when it cannot turn.
8. It is strictly forbidden to disassemble the parts on the microscope at will, and it is strictly prohibited to disassemble the objective lens at will, so as not to damage the screw of the converter, or the screw will be loose, causing the low-magnification objective lens to be out of focus when converting.
9. When using a high-magnification objective lens, do not use the coarse focusing handwheel to adjust the focus to avoid excessive movement and damage to the objective lens and glass slide.
10. Before returning it after use, you must check whether there is water or reagent on the objective lens. If so, wipe it clean, and wipe the stage clean. Then put the microscope in the box and pay attention to the lock box.
