Images from the Microscope

Science NetLinks: Cells 2: The Cell as a System Photo credit: Clipart.com Purpose To review cell structures and investigate how the components of a cell operate as a system. Context This lesson is the second of a two-part series on cells. In Cells 1: Make a Model Cell, students compared a plant and animal cell and then made a model of a cell. Cells 2: The Cell as a System encourages students to view the cell as a system. Planning Ahead Preview the Cells: A Busy Factory resource used in this lesson. Students will read seven pages of online material in this lesson. Motivation Begin by reviewing the organelles included on the Science NetLinks student sheet, Inside of a Cell. Once you're comfortable with students' understanding of basic cell structures and functions, tell them they're going to switch gears for a moment and think about systems. Ask students these questions: With what systems are you familiar? Next, focus the discussion on factories by asking these questions: With what types of factories are you familiar? Development Assessment