Ch 24: Cellular Respiration & Photosynthesis

About This Chapter

Examine the transfer of energy in plants and animals through the video lessons in our Cellular Respiration & Photosynthesis chapter. Come to grips with the Calvin-Benson and Krebs cycles and more as you work through the lessons in this chapter.

Cellular Respiration & Photosynthesis - Chapter Summary

In the lessons on cellular respiration, you will rediscover how carbohydrates, lipids and proteins are converted into energy at the cellular level. You will examine both aerobic and anaerobic respiration, how they differ and the steps involved in both reactions.

The lessons covering photosynthesis illustrate energy transfer in plants, the Calvin-Benson cycle, the importance of chlorophyll and more. The material contained in the lessons includes the following:

  • Energy transformation in living things
  • Process of cellular respiration and redox reductions
  • Steps and significance of the glycolysis pathway
  • Products and steps of the Krebs Cycle and electron transport chain
  • Role of chlorophyll in photosynthesis
  • Light and dark reactions in photosynthesis

The video lessons in this study guide are accompanied by fully written transcripts that set off specialized terminology and key vocabulary in bold text to make identification and reference easy. Each video includes a timeline feature that allows you to skip sections you don't want to view, replay sections you want to see over again, and go directly to particular parts of a video without replaying the lesson from the beginning. A short quiz tests for retention, and the dashboard provides a handy place to store your work.

9 Lessons in Chapter 24: Cellular Respiration & Photosynthesis
Test your knowledge with a 30-question chapter practice test
Energy and Life: The Transformation of Energy in Living Organisms

1. Energy and Life: The Transformation of Energy in Living Organisms

While the sun is an excellent source of energy, not all forms of life can utilize the sun's energy directly. This lesson describes how plants transform the sun's energy into potential energy stored in sugar, how living organisms utilize energy in sugar to perform work, and how the relationship between photosynthesis and cellular respiration is necessary for life.

Cellular Respiration: Energy Transfer in Cells

2. 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.

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

3. 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.

Glycolysis Pathway: Steps, Products & Importance

4. 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.

The Citric Acid (Krebs) Cycle: Products and Steps

5. 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

6. 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.

Chlorophyll: Absorbing Light Energy for Photosynthesis

7. Chlorophyll: Absorbing Light Energy for Photosynthesis

Plants are clean, green, photosynthesizing machines. Using a specialized pigment called chlorophyll, plants are able to soak up energy from the sun and turn it into food. In this lesson, we'll start to learn why chlorophyll literally gets excited about a sunny day!

Photolysis and the Light Reactions: Definitions, Steps, Reactants & Products

8. Photolysis and the Light Reactions: Definitions, Steps, Reactants & Products

In this lesson, we'll learn how electrons get excited during the light-dependent reactions of photosynthesis, jumping off photosystem reaction centers like they were trampolines! In addition, we'll learn how the splitting of water creates reactants for this part of photosynthesis while creating a little fresh air for us.

Dark Reactions of Photosynthesis: The Calvin-Benson Cycle

9. Dark Reactions of Photosynthesis: The Calvin-Benson Cycle

Photosynthesis starts out using the energy from sunlight to get things started, but it ends with the dark reactions, which don't need sunshine to complete sugar production. In the Calvin cycle, ATP and NADPH from the light reactions are used to produce sugars.

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

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Other Chapters

Other chapters within the NMTA Middle Grades General Science (204): Practice & Study Guide course

Support