Ch 15: Cell Membrane Basics

About This Chapter

Get a better understanding of the anatomy, function and organelles of a cell membrane. Review the material to make sure you can describe this part of a cell.

Cell Membrane Basics - Chapter Summary

The cell membrane controls everything that enters and leaves a cell and maintains cell homeostasis. You will learn about plasma membranes and the fluid mosaic model of cell membrane structure. Endocytosis, exocytosis and active cell transport will also be explained. When you have completed this chapter, you will be able to:

  • Identify the different parts of the cell membrane
  • Explain the fluid mosaic model of a cell membrane
  • Discuss endocytosis and exocytosis
  • Differentiate between active and passive transport
  • Explain how diffusion and osmosis work

These lessons all include an interactive quiz, allowing you to quickly assess what you did and did not understand from the material. If you would like to review a main point, the Timeline feature of your account provides easy-to-use video tags to jump to that part of the video. The Dashboard of your account allows you to study whenever you find the time, on a wide variety of devices.

5 Lessons in Chapter 15: Cell Membrane Basics
Test your knowledge with a 30-question chapter practice test
Plasma Membrane of a Cell: Definition, Function & Structure

1. Plasma Membrane of a Cell: Definition, Function & Structure

Cells are made of many crucial parts that work together and perform specific functions. In this lesson, you will learn about the plasma membrane of a cell to gain an understanding of its structure and function.

The Fluid Mosaic Model of the Cell Membrane

2. The Fluid Mosaic Model of the Cell Membrane

In this lesson, we will discuss the components of the cell membrane and why the fluid mosaic model paints the best picture of its structure. We'll learn about the roles of the phospholipid bilayer, cholesterol, proteins and carbohydrates.

Endocytosis and Exocytosis Across the Cell Membrane

3. Endocytosis and Exocytosis Across the Cell Membrane

In this lesson, we'll discover how some cells can eat, drink, and digest their dinner through the process of endocytosis and a structure called the lysosome. In addition, we'll learn how a cell can throw out the leftovers across the cell membrane during exocytosis.

Active Transport in Cells: Definition & Examples

4. Active Transport in Cells: Definition & Examples

In this lesson, we'll learn how substances are transported across the cell membrane against the concentration gradient. This might seem like an uphill battle for the cell, but all it takes is a little chemical energy and a few integral membrane proteins to kick off some active transport!

Passive Transport in Cells: Simple and Facilitated Diffusion & Osmosis

5. Passive Transport in Cells: Simple and Facilitated Diffusion & Osmosis

A cell membrane is selectively permeable - not permeable to everything. In this lesson, we'll talk about methods of passive transport along a concentration gradient, including simple and facilitated diffusion and osmosis.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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