Ch 22: Cell Structure & Function

About This Chapter

You may use the content of this chapter to study more information about cell structure and function. These lessons will develop an understanding of how cells are composed and the function they play in the body with the resources in this chapter.

Cell Structure & Function- Chapter Summary

These lessons will address significant information related to cell structure and function. You will review the different processes that a cell carries out in order to function properly. Topics that will be covered include:

  • Plasma membrane
  • Cytoplasm
  • Phospholipid bilayer
  • Fluid mosaic model
  • Passive and active transport
  • Endocytosis vs exocytosis
  • Protein synthesis

The lessons in this chapter come in the form of brief videos that present the material to you in a clear and concise way. Each lesson is paired with a full transcript that includes terminology that you should be familiar with in bold. Once you have completed the lesson, you can take the short lesson quiz to test yourself on everything you have just studied.

9 Lessons in Chapter 22: Cell Structure & Function
Test your knowledge with a 30-question chapter practice test
The Cell: Structure & Function

1. The Cell: Structure & Function

The cell is a small, but complex structure. Take a look inside the outer plasma membrane of a cell and discover the functions of some common cellular components, including the nucleus, endoplasmic reticulum, Golgi apparatus and mitochondria, in this lesson.

Plasma Membrane of a Cell: Definition, Function & Structure

2. 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.

What is Cytoplasm? - Definition & Functions

3. What is Cytoplasm? - Definition & Functions

Did you know your cells are filled with a thick fluid? Cytoplasm is an important part of your cells and serves several functions that are key to cellular health and productivity.

How a Phospholipid Bilayer Is Both Hydrophobic and Hydrophilic

4. How a Phospholipid Bilayer Is Both Hydrophobic and Hydrophilic

In this lesson, we will learn what gives phospholipids a dual personality. How can this molecule be both hydrophobic and hydrophilic, and why is this important to a cell?

The Fluid Mosaic Model of the Cell Membrane

5. 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.

Passive Transport in Cells: Simple and Facilitated Diffusion & Osmosis

6. 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.

Active Transport in Cells: Definition & Examples

7. 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!

Endocytosis and Exocytosis Across the Cell Membrane

8. 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.

Protein Synthesis in Cells: Process & Importance

9. Protein Synthesis in Cells: Process & Importance

The DNA of the cell contains the blueprints for all the proteins in the body. These blueprints become proteins with the help of RNA and ribosomes. Follow along with this lesson to learn about the two major phases of protein synthesis: transcription and translation.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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