Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane.

Today on Crash Course Anatomy & Physiology, Hank breaks down the parts and functions of one of your body's unsung heroes: your epithelial tissue.
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Epithelial Tissue Creates...

Journey inside the cell to see how the cell membrane acts as both a barrier and an entrance. How does it take in nutrients while keeping out potentially damaging molecules? Biology - Cells And DNA - Learning Points. The cell membrane...

Let’s fly to Eukarytopia, the home of the eukaryotes! You can learn all about plants in the Garden of Babylon! This lesson will begin our series on eukaryotic cells. We’ll look at the structure of plant cells, focusing on components...

Sally’s never-ending field trip continues. This time, they’re exploring the bustling city of Zoo York. Perhaps she’ll travel for the rest of year 11, only returning home for a hot meal and special occasions. This lesson will examine the...

Overview of the cell and its contents.

Let’s fly to Eukarytopia, the home of the eukaryotes! You can learn all about plants in the Garden of Babylon! This lesson will begin our series on eukaryotic cells. We’ll look at the structure of plant cells, focusing on components...