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Ch 4: Types of Reactions

About This Chapter

Watch fun video lessons and complete the short quizzes that follow to learn about biochemical reactions and enzyme function. You'll also discover the steps in cellular respiration.

Types of Reactions - Chapter Summary and Learning Objectives

Let our experienced instructors help you study the chemical reactions responsible for converting food into energy. Introductory lessons discuss the reaction types occurring in the human body and walk you through the role of enzymes in these processes. You'll also study the products created during each step in the glycolysis pathway, the citric acid cycle and the electron transport chain, so that by the time you reach the end of this chapter, you'll be familiar with the following:

  • Synthesis and decomposition reactions
  • Enzyme structure and function
  • Steps in cellular respiration

Video Objectives
Biochemical Reactions: Synthesis and Decomposition Get some examples of synthesis and decomposition reactions occurring in the body. Learn the difference between products and reactants.
Function of Enzymes: Substrate, Active Site & Activation Energy Explore the role of enzyme-substrate complexes in the body's chemical reactions.
Coenzymes, Cofactors & Prosthetic Groups: Function and Interactions Find out how cofactors, coenzymes and prosthetic groups aid enzyme function.
What Are Enzymes? - Definition, Lesson & Quiz Take a closer look at enzyme structure and function as well as the processes regulating enzyme activity.
Redox Reactions & Electron Carriers in Cellular Respiration: Definitions and Examples Discover the products of cellular respiration's oxidation-reduction reactions.
Cellular Respiration: Energy Transfer in Cells Get an overview of the processes involved in converting organic compounds into ATP.
Glycolysis Pathway: Steps, Products & Importance Focus on the molecules created during the first stage of cellular respiration.
Lactic Acid & Alcoholic Fermentation: Comparison, Contrast & Examples Compare aerobic cellular respiration with the processes involved in anaerobic cellular respiration.
The Citric Acid (Krebs) Cycle: Products and Steps Learn how the molecules created during glycolysis are converted into citric acid and prepared for the next stage of cellular respiration.
The Electron Transport Chain: Products and Steps Explore the steps in this last stage of cellular respiration.

10 Lessons in Chapter 4: Types of Reactions
Test your knowledge with a 30-question chapter practice test
Biochemical Reactions: Synthesis and Decomposition

1. Biochemical Reactions: Synthesis and Decomposition

Did you know that there are thousands of chemical reactions going on in your body every day? In this lesson, you will learn about three types of biochemical reactions: synthesis reactions, decomposition reactions and reversible reactions.

Function of Enzymes: Substrate, Active Site & Activation Energy

2. Function of Enzymes: Substrate, Active Site & Activation Energy

In this lesson, we'll learn how enzymes function to lower the activation energy of a chemical reaction. Enzymes bind to their substrates to perform all kinds of important and essential cellular processes, as well as processes that help you enjoy a slice of pizza!

Coenzymes, Cofactors & Prosthetic Groups: Function and Interactions

3. Coenzymes, Cofactors & Prosthetic Groups: Function and Interactions

Some enzymes require helpers to recognize a substrate or complete a reaction. These helpers include cofactors, coenzymes, and prosthetic groups, which are required for some enzymes' functions.

What are Enzymes? - Definition & Explanation

4. What are Enzymes? - Definition & Explanation

In this lesson, you will discover what enzymes are, explore how they work, and learn why they're needed for your cells' day-to-day functions. The lesson concludes with a quiz to test your knowledge.

Redox Reactions & Electron Carriers in Cellular Respiration: Definitions and Examples

5. Redox Reactions & Electron Carriers in Cellular Respiration: Definitions and Examples

Redox reactions play an important role in cellular respiration. In this lesson, you will see how NAD and FAD are used as electron carriers to temporarily store energy during cellular respiration.

Cellular Respiration: Energy Transfer in Cells

6. Cellular Respiration: Energy Transfer in Cells

Watch this short video to learn the basics about converting organic compounds into ATP, also known as cellular respiration. We'll look at an overview of the process.

Glycolysis Pathway: Steps, Products & Importance

7. 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.

Lactic Acid & Alcoholic Fermentation: Comparison, Contrast & Examples

8. 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.

The Citric Acid (Krebs) Cycle: Products and Steps

9. 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

10. 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.

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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