Ch 30: ORELA General Science: Biochemistry of Life

About This Chapter

Study the biochemistry of life by watching quick videos and taking quizzes. You'll easily get ready to answer related questions on the ORELA General Science exam after you watch all the lessons in this chapter.

ORELA General Science: Biochemistry of Life - Chapter Summary

Renew your understanding of cellular respiration and the electron transport chain through the convenient and flexible videos found in this chapter. Our subject experts guide your study of these topics:

  • Energy transfer in cells
  • Redox reactions and electron carriers in cellular respiration
  • Steps in the glycolysis pathway
  • Products of the Krebs cycle
  • Differences between lactic acid and alcoholic fermentation
  • Chlorophyll's purpose in photosynthesis
  • Photolysis and dark reactions of photosynthesis

You can watch these videos from any location at a time that fits your schedule. We offer mobile friendly lessons, so you can even study for the exam on-the-go. Each video takes about 5-10 minutes to watch and you'll find transcripts and quizzes for each lesson that you view.

Objectives of the ORELA General Science: Biochemistry of Life Chapter

The ORELA General Science is a test you'll need to pass if you want to teach science to students in Oregon. Part of the licensure process, it has multiple-choice questions covering life and physical science, Earth and space science and the nature of science. You'll be assessed on your understanding of the biochemistry of life in the physical science domain. This domain is home to 37% of the exam's questions.

10 Lessons in Chapter 30: ORELA General Science: Biochemistry of Life
Test your knowledge with a 30-question chapter practice test
Cellular Respiration: Energy Transfer in Cells

1. 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

2. 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

3. 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

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.

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.

Lactic Acid Fermentation: Definition, Products & Equation

10. Lactic Acid Fermentation: Definition, Products & Equation

In this lesson, we'll be looking at the process of lactic acid fermentation. This is a crucial part of our muscles' ability to regenerate after being worked out too hard. You'll also learn about the products of this process and even its equation. Then you can test your knowledge with a quiz!

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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