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All cells are self-sustaining entities with different tasks divvied up to different components of the cell. These components are what we call cell organelles. Cell organelles perform important tasks to maintain normal cell functions including cell division. For Advanced Placement (AP) Biology there are two main eukaryotic cell types, the animal cell and the plant cell, which you need to understand well. A eukaryotic cell is a type of cell that possesses a distinct membrane-bound nucleus, whereas a prokaryotic cell does not have a nucleus.Here we will focus on eukaryotic cells.

Our cells have no walls, as we traded in mobility for susceptibility over the course of evolution. So our immune system is there to help keep us safe. Let’s take a closer look at the workings of the immune system as far as what you’ll want to know for the AP® Biology exam.

On the AP® Biology exam, many students struggle with questions that relate to the properties of water. This topic is usually covered at the beginning of the year, and when it comes to all the information students are responsible in AP® Bio, it gets forgotten. The properties of water are essential to maintaining homeostasis, a stable equilibrium, in organisms and in the world.

Cells have many organelles to memorize and understand. One of the organelles that you must know for the AP® Bio exam is the cell membrane. In this AP® Biology Crash Course Review, we will go over the important information that you need to know for the AP® exam about cell membranes.