Living Organisms, Their Structure and Processes — Cells and Life

About this lesson

This unit introduces students to the cell as the basic unit of structure and function in living organisms. It begins by asking students to provide evidence that living organisms are composed of cells, then guides them through classifying organisms into prokaryotes and eukaryotes, and into unicellular and multicellular organisms. The text uses diagrams and activities to compare animal, plant, and bacterial cells, highlighting differences such as the presence of a nucleus, cell wall, chloroplasts, and other organelles. It also explains the role of stem cells as undifferentiated cells that can transform into specialized cells, with examples from human tissues and a discussion of medical applications and stem cell banks. By the end of the lesson, students should be able to classify organisms, compare prokaryotes and eukaryotes, and recognize stem cell properties.