About This Chapter
Metabolism - Chapter Summary and Learning Objectives
Use the lessons in this chapter to learn all the facts about metabolism. Our instructors are subject experts who guide you through lessons on biochemical reactions, enzyme function, cellular respiration and the electron transport chain. These lessons break down critical components of metabolism into bite-sized chunks that make learning entertaining and easy. After you watch a lesson, take the self-assessment quiz that follows it to make sure you understand the material. Before you move on to the next lesson, review key vocabulary terms using the transcript. During your study of metabolism, you'll:
- Understand how anabolism and catabolism work
- Watch coenzymes and prosthetic groups interact
- Examine energy transfer in cells
- Compare lactic acid and alcoholic fermentation
- Discover the importance of vitamins and minerals
- Determine the purpose of calories
|Anabolism and Catabolism: Definitions & Examples||Describe these two forms of metabolism and how they are used in the body.|
|Biochemical Reactions: Synthesis and Decomposition||Examine these different types of biochemical reactions and what they do.|
|Function of Enzymes: Substrate, Active Site & Activation Energy||Dive into the processes and functions of enzymes.|
|Coenzymes, Cofactors & Prosthetic Groups: Function and Interactions||Find out why coenzymes, prosthetic groups and cofactors are called helpers and how they function.|
|Redox Reactions & Electron Carriers in Cellular Respiration: Definitions and Examples||Evaluate the role of redox reactions in cellular respiration and the jobs that electron carriers perform.|
|Cellular Respiration: Energy Transfer in Cells||Detail the process of cellular respiration.|
|Glycolysis Pathway: Steps, Products & Importance||Outline the steps in the glycolysis pathway and find out why it's important.|
|Lactic Acid & Alcoholic Fermentation: Comparison, Contrast & Examples||Differentiate between these two fermentation processes and see some examples.|
|The Citric Acid (Krebs) Cycle: Products and Steps||Scrutinize the steps in the citric acid cycle and its role in cellular respiration.|
|The Electron Transport Chain: Products and Steps||Observe the steps in the last piece of the cellular respiration process.|
|Calories: Definition, Purpose & Total Count||Determine why calories are important and examine the nutrients that contain them.|
|Determining Your Nutritional Needs||Identify methods for figuring out your nutritional needs.|
|Determination of Energy Use by the Body||Summarize various methods used to determine your body's energy use.|
|Vitamins We Need: Their Importance & Sources||Discover the places you can find vitamins naturally and how many different types you need to be healthy.|
|Minerals in Our Food: Functions in the Body & Food Sources||Get a closer look at the foods that serve as sources of minerals and find out why minerals are important.|
1. Anabolism and Catabolism: Definitions & Examples
Metabolism breaks down large molecules like food into usable energy. This energy drives bodily processes critical to survival. In this video lesson, you will learn about the two forms of metabolism that break down and build up molecules and see examples of each.
2. 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.
3. 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!
4. 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.
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.
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.
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.
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.
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.
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.
11. Calories: Definition, Purpose & Total Count
A calorie is a unit of measurement used to express energy. There are three nutrients that provide the body with calories: carbohydrates, proteins and fats. Learn about these macronutrients and recommendations for total energy intake: EER and AMDRs.
12. Determining Your Nutritional Needs
This lesson will teach you about important terms involved in determining your nutritional needs, as well as about a tool that can help you use the latest nutritional science to figure these things out.
13. Determination of Energy Use by the Body
How much energy does your body use each day? Your body uses energy to perform the vital bodily functions that keep you alive and for any physical activities you engage in. Learn about the methods available to determine energy use by the body.
14. Vitamins We Need: Their Importance & Sources
There are a lot of different vitamins, and they come from many different places! This lesson will teach you about what they are, how many different kinds you need, what they do, and where you can obtain them naturally.
15. Minerals in Our Food: Functions in the Body & Food Sources
Minerals are important substances that help your body's form and function on many different levels. This lesson will go over some important ones, what they do, and where they are found in our diets.
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