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Ch 34: Cellular Respiration & Photosynthesis - ORELA Middle Grades General Science

About This Chapter

The lessons in this chapter can help you review cellular respiration and photosynthesis as you study for ORELA Middle Grades General Science assessment. Lesson quizzes and a chapter exam can test your understanding of the materials.

Cellular Respiration & Photosynthesis: ORELA Middle Grades General Science - Chapter Summary

Watch short and engaging videos to get the comprehensive overview of cellular respiration and photosynthesis you need to tackle related questions on the ORELA assessment. In no time, you will be ready to:

  • Discuss the transformation of energy in living organisms
  • Analyze cellular respiration and the steps, products and importance of glycolysis pathway
  • Explain redox reactions and electron carriers in cellular respiration
  • Identify the products and steps of the citric acid cycle and electron transport chain
  • Define chlorophyll, photolysis and the light reactions
  • Describe dark reactions of photosynthesis

Expert instructors offer the definitions, steps and additional information you need to fully comprehend cellular respiration and photosynthesis. Watch the lessons from your home, or on the go via your laptop, smartphone or tablet to study at your own pace.

Cellular Respiration & Photosynthesis: ORELA Middle Grades General Science Objectives

This Cellular Respiration & Photosynthesis - ORELA Middle Grades General Science chapter explores topics found in the life science content domain of the assessment. This domain constitutes approximately 25% of the total test. You can watch the lessons in this chapter to brush up on the subject area then test what you've reviewed with short quizzes and a chapter exam.

The test is designed to ensure you're prepared to secure the licensure needed to teach general science to students in middle grades. It consists of 150 multiple-choice questions and requires a minimum score of 228 to pass.

9 Lessons in Chapter 34: Cellular Respiration & Photosynthesis - ORELA Middle Grades General Science
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.
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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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