Unit 3 Overview

Unit 3 is about the basic unit of life, cells. We will learn about the 2 types of organisms, prokaryotes and eukaryotes. We will also learn about the parts of animal and plant cells, as well as how things are transported in and out of cells across cell membranes.  Finally, we will learn about how new cells are formed.

The image is of a selective membrane.  It allows hydrogen molecules through, but not larger molecules.  (https://www.ornl.gov/info/ornlreview/v38_1_05/article06.shtml)