At school, we learn that the cells are extremely small. Maybe you remember the day when you first looked through a microscope in a biology lesson and saw some plant cells?
However, not all cells are so small that they would not even be visible. Here are some examples of large cells.
The human body cells are not very large, they are almost impossible to see with the naked eye. But the egg is really possible. Its size is 0.1 mm – this is a small point, but it can be seen without a microscope.
Some bacteria cells are quite large. For example, thiomargarita namibiensis can reach 0.75 mm in size. These bacteria are considered to be the highest in weight. Thiomargarita namibiensis is found only on the shores of Namibia.
Other bacteria, which were previously considered the largest, Epulopiscium fishelsoni cell size reaches half a millimeter. In fact, there are many bacteria on Earth that can be seen naked and almost all of them live in the oceans.
Ameba is one of those organisms that teachers often refer to when talking about unicorns. Amarios are often considered as microorganisms, but some species can be observed even without microscopy. For example, Gromia sphaerica , located near the Bahamas, can grow to 3 cm in diameter. These ampoules are usually about the size of a grape.
Squid has unusually large nerve cells. Some neurites have a diameter of 1 mm – a large enough size to be seen with the naked eye. Great Squids Neurites have greatly served science: in the 5th and 6th decades scientists used squid neurons for a variety of studies to find out how their electrical signals are transmitted.
Your refrigerator has several large cells. These are eggs. The strand egg is the largest cell in the world and can weigh about 1.6 kg.