Modern Cell Theory and Cell Types
Ever wondered what everything living has in common? The answer is cells! According to Modern Cell Theory, all living things are made of cells, which are the basic units of structure and function in living organisms. Plus, new cells only come from cells that already exist.
There are two main types of cells. Prokaryote cells don't have a nucleus or membrane-bound organelles. Their DNA forms a single loop, and they're usually single-celled organisms like bacteria. Think of them as the simpler model of cells.
Eukaryote cells are more complex with a nucleus that houses their DNA shaped into chromosomes. These cells contain various membrane-bound organelles and are usually found in multicellular organisms like plants, animals, and fungi. Your body is made up of these types of cells!
Fun Fact: While structure refers to how a cell is built and what it looks like, function describes what the cell actually does - like its job description in the body!
