Cells- New Information

Cells New Information

The smallest unit of life that can do anything inside that has to deal with animals or plants, is a cell. Different people have discovered cells, but a few main ones are, Schleiden, Virchow, Hooke, Leeuwenhoek, and Schwann. They have all discovered things like, animals tissue were made of cells, or that all plants are made of cells. These people have discovered a lot that has helped us with figuring these type of things out more. Plant and fungi cells are the only cells that we know of that have cell walls. If you look at animals cells you can see that they don’t have the present in their structure. Some cells are different and have the like opposite structures and parts, but one part that all cells have are cell membranes, organelles, cytoplasm, and DNA. All cells have these parts. One of the most common prokaryotes is bacteria, and its one of the smallest cells. The function of a cell wall, is to give support to a cell. Different parts like the cell membrane have different parts. All cells have their functions and many other things. Multicellular organisms are what you are! We grow by making many smaller cells. Tissues are the group of cells that perform a certain job. Animals have many different tissues. For example: nerve tissue, muscle tissue, connective tissue, and protective tissue. Plants have different tissue has well. They have transport tissue, protective tissue, and ground tissue. Tissues lead up to many things and one of them is an organ. Organs are things that help you live, like your heart. You need your heart to live. Organs are mainly made of cardiac tissue. It also has nerve, and blood cell tissues. Nervous tissues carry ‘messages’ back and forth between the stomach and the brain. Organ systems perform a certain function or job. If something can life process on its own, it’s an organism. Organisms are things like: horses, dogs, cats, fish, humans. Function is a system of things that our organs and cells do. All these things com together and make us!