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Ch 9: Praxis Environmental Education: Energy Flow in the Environment

About This Chapter

We can help you understand energy flow in the environment. The video lessons and self-assessment quizzes will aid you in your preparation for the Praxis Environmental Education exam.

Praxis Environmental Education: Energy Flow in the Environment - Chapter Summary

Use this chapter's lessons in energy flow in the environment to help you understand the food chain. You'll learn how various ecosystems function to provide energy for their members. The energy pyramids are explored, as are the food web and trophic levels. You'll learn how plants absorb and process light energy. Topics covered in these videos include the following to help prepare you for the exam questions:

  • Autotrophs and heterotrophs
  • Terrestrial and aquatic biomass pyramids
  • Energy pyramids
  • Food chains, trophic levels and energy flow in an ecosystem
  • Producers and consumers and primary productivity
  • Decomposers and detritivores
  • Chemosynthesis
  • Photosynthesis
  • The Calvin-Benson Cycle and dark reactions of photosynthesis
  • Cellular respiration
  • Aerobic and anaerobic respiration

You will get a solid background in how energy is produced and consumed in various types of ecosystems. These concise videos and their accompanying quizzes, created by expert instructors, can aid you as you prepare for the exam.

Objectives of the Praxis Environmental Education: Energy Flow in the Environment Course

In many states, those who want to teach environmental education are required to take the Praxis II exam as a prerequisite for certification or licensure. All questions on the Praxis Environmental Education exam are multiple-choice. The test has six sections, and questions regarding energy flow are in the Principles of Ecology section. This section comprises 22% of the total test and has roughly 29 questions.

5 Lessons in Chapter 9: Praxis Environmental Education: Energy Flow in the Environment
Test your knowledge with a 30-question chapter practice test
Autotrophs and Heterotrophs

1. Autotrophs and Heterotrophs

Ever wonder where your energy comes from? What about a plant's energy? And where does it go? Learn about the flow of energy through the food chain in this lesson on autotrophs and heterotrophs.

Food Chains, Trophic Levels and Energy Flow in an Ecosystem

2. Food Chains, Trophic Levels and Energy Flow in an Ecosystem

In this lesson, you'll learn about food chains, food webs, and the different roles that organisms play in an ecosystem. You'll also learn about how energy flows through an ecosystem.

Chlorophyll: Absorbing Light Energy for Photosynthesis

3. 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!

Dark Reactions of Photosynthesis: The Calvin-Benson Cycle

4. 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.

Cellular Respiration: Energy Transfer in Cells

5. 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.

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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Other Chapters

Other chapters within the Praxis Environmental Education: Practice and Study Guide course

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