Ch 25: Cellular Respiration Overview

About This Chapter

If you need to review cellular respiration for an upcoming test or class assignment, check out these convenient biology study resources. These mobile-friendly lessons and practice quizzes are available to study at any time that fits your schedule.

Cellular Respiration Overview - Chapter Summary

For a high-level overview of cellular respiration, take a look at the lessons in this self-paced biology study resource. These lessons break down the entire process of cellular respiration and take a close look at concepts such as the glycolysis pathway and the Krebs cycle. You'll also examine lactic acid fermentation and evaluate factors that affect the cellular respiration process. Studying this chapter should enable you to:

  • Understand why cellular respiration occurs
  • Evaluate the importance of the glycolysis pathway in cellular respiration
  • Recognize the function and structure of mitochondria
  • Name the steps and products of the Krebs cycle and the electron transport chain
  • Differentiate between lactic acid fermentation and alcoholic fermentation
  • Understand how temperature, glucose and oxygen affect cellular respiration

Each lesson comes with a short self-assessment quiz to help you retain the concepts you've studied and identify any areas of confusion. If you need extra help, you can easily submit questions to our expert biology instructors. Your progress is tracked on your interactive course Dashboard, which you can also use to jump to specific lessons. For your convenience, the chapter can be studied at any time, day or night, and accessed on any device that has an Internet connection.

7 Lessons in Chapter 25: Cellular Respiration Overview
Test your knowledge with a 30-question chapter practice test
What Is the Purpose of Cellular Respiration?

1. What Is the Purpose of Cellular Respiration?

In this lesson, explore cellular respiration and its purpose. You'll see the differences between anabolic and catabolic reactions and understand how our bodies are able to utilize the energy stored in the foods we eat.

Glycolysis Pathway: Steps, Products & Importance

2. Glycolysis Pathway: Steps, Products & Importance

Cellular respiration creates chemical energy in the form of ATP from the food we eat and the air we breathe. In this lesson, we'll learn about the first part of this process, glycolysis.

Mitochondria: Structure & Function

3. Mitochondria: Structure & Function

Energy is produced inside the mitochondria of your cells. This function is why mitochondria are referred to as the powerhouses of the cell. Learn about the unique way mitochondria are structured and why this structure makes them so good at their job.

The Citric Acid (Krebs) Cycle: Products and Steps

4. The Citric Acid (Krebs) Cycle: Products and Steps

In this lesson, we return to the process of cellular respiration for the second act of creating energy from food. In this act, products from glycolysis feed into the next stage, the citric acid cycle.

The Electron Transport Chain: Products and Steps

5. The Electron Transport Chain: Products and Steps

In this lesson, we'll learn about the finale of cellular respiration. The electron transport chain uses products from the first two acts of glycolysis and the citric acid cycle to complete the chemical reaction that turns our food into usable cellular energy.

Lactic Acid & Alcoholic Fermentation: Comparison, Contrast & Examples

6. Lactic Acid & Alcoholic Fermentation: Comparison, Contrast & Examples

When in an anaerobic environment, some cells can use glycolysis and fermentation to keep producing ATP. Lactic acid fermentation happens in our muscle cells when we are exercising feverishly, while alcoholic fermentation is used in yeast cells and is what leads to beer, bread, and wine.

Factors that Affect Cellular Respiration

7. Factors that Affect Cellular Respiration

In this lesson, we'll explore how different conditions affect the rate of cellular respiration in cells. We'll first review what cellular respiration is, and then explore how three factors affect it: temperature, glucose availability, and oxygen concentration.

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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