Face mites are microscopic animals that live in the human ski, in the hair follicles. They feed on the oil that the skin produces. Today I found one that moved around on my microscope slide.
I found the green algae Dictyosphaerium and a whole bunch of bacteria in a water sample that I got from a pond. The cells of the algae were about 7 micrometers across, which is about the size of red blood Read More …
Polarized light microscopy does the magic!
Today I put some clippings under the microscope. They were so thin, that one can see the cross-section of hair.
Water crustaceans are a sign of clean water! They eat bacteria and are also eaten by fish. Here I show you some of the crustaceans that I found in a sample of pond water.
Baker’s Yeast (Saccharomyces cerevisiae) is a fungus that is used for baking and brewing. Here I show you how the yeast is actively producing carbon dioxide gas by cell respiration under the microscope.
This is why you should not eat raw potatoes: they are too difficult to digest! In this video I will show you how the enzyme amylase in the saliva digests starch grains. The starch is made visible with iodine.
I put filamentous algae under the microscope. These were growing in one of my jars.
This fresh water flatworm is quickly sucks in the food that it want to eat. Sometimes the prey is too large, however. Flatworms have a mouth somewhere in the middle of the body that leads into a stomach. It has Read More …
Phagocytes are white blood cells that engulf bacteria that have found their way into the body. They are part of cellular immunity. In this video we can see them move about. If you want to see them yourself, here are Read More …