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Ch 28: TExES Science 7-12: Cell Biology

About This Chapter

Use the lessons in this chapter to study up on the various components of cells, so you can feel prepared for relevant questions on the TExES Science 7-12 exam.

TExES Science 7-12: Cell Biology - Chapter Summary

In this chapter, you'll brush up on your knowledge of parts and functions of the cell, and learn how cells communicate with one another in preparation for the TExES science 7-12 exam. By the end of this chapter, you will have reviewed:

  • Mitochondria and nucleus structure
  • Fluid mosaic model of the cell membrane
  • Phospholipid bilayer
  • Passive and active cell transport
  • Endocytosis and exocytosis
  • Ribosomes, the endomembrane system and the cytoskeleton
  • Cell communication

The lessons in this chapter have been developed specifically to cover the information about cell biology you are likely to see on the exam. Each lesson contains a short video to help illustrate the material being covered. The video's transcript is also available for text-based learning. After each lesson, you can take a self-assessment quiz to test your knowledge and practice for the exam.

10 Lessons in Chapter 28: TExES Science 7-12: Cell Biology
Test your knowledge with a 30-question chapter practice test
Mitochondria Structure: Cristae, Matrix and Inner & Outer Membrane

1. Mitochondria Structure: Cristae, Matrix and Inner & Outer Membrane

If you want to make it through the day, you're going to need some energy. In this lesson, we'll learn about the organelle that supplies this energy, the mitochondrion, and why this cell structure appreciates the time you took to eat breakfast this morning!

Structure of the Nucleus: Nucleolus, Nuclear Membrane, and Nuclear Pores

2. Structure of the Nucleus: Nucleolus, Nuclear Membrane, and Nuclear Pores

In this lesson, we'll discuss the organization and importance of the nucleus in your cells. This is the membrane-bound structure responsible for containing all the genetic material essential to making you who you are.

The Fluid Mosaic Model of the Cell Membrane

3. 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.

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?

Passive & Active Transport in Cells

5. Passive & Active Transport in Cells

In order for your cells to survive, nutrients and other substances must be allowed to move in and out across the cell membrane. Sometimes this requires energy (active transport), and sometimes it does not (passive transport).

Endocytosis and Exocytosis Across the Cell Membrane

6. 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.

The Ribosome: Structure, Function and Location

7. The Ribosome: Structure, Function and Location

The ribosome is the cellular structure responsible for decoding your DNA. In this lesson, we'll learn about ribosome structure, function and location - characteristics that make it a very good genetic translator.

The Endomembrane System: Functions & Components

8. The Endomembrane System: Functions & Components

In this lesson, we'll learn about the endomembrane system, which consists of the endoplasmic reticulum and the Golgi apparatus. This system is important in making, packaging, and shipping all sorts of goodies for the cell to use!

The Cytoskeleton: Microtubules and Microfilaments

9. The Cytoskeleton: Microtubules and Microfilaments

In this lesson, we'll learn about the cytoskeleton of your cells. This network of microtubules, intermediate filaments, and microfilaments helps different types of cells maintain a unique set of characteristics, including shape and movement.

An Overview of Cell Communication

10. An Overview of Cell Communication

Cellular communication is an important process that allows cells to pass signals to one another. In this video lesson, you will be introduced to the process of cellular communication, identifying the three steps of cellular signaling in organisms.

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.
Not Taken

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