Ch 3: TASC Science: Matter & Energy Flow in Organisms

About This Chapter

Our instructors can give you the tools for success on the science section of the TASC exam. Watch the short video lessons in this chapter to prepare for questions on matter and energy flow in organisms.

TASC Science: Matter & Energy Flow in Organisms - Chapter Summary

You'll need a solid grasp of essential physical science topics when you take the science portion of the TASC. In this chapter, we discuss topics involving matter and energy flow, including:

  • The process of photosynthesis
  • Cellular energy transfer
  • Energy transformation in living organisms
  • The functions of organic compounds

Our instructors packed this series of lessons with straightforward presentations and thorough explanations, and they're here to answer any questions you have. Take a quiz after watching each lesson to ensure you have all the critical matter and energy flow concepts well in hand.

Objectives of the TASC Science: Matter & Energy Flow in Organisms Chapter

The TASC is one possible way to earn your high school equivalency credential in participating states. The test consists of subtests in social studies, math, science, reading and writing. Roughly 36% of the questions you'll need to answer on the TASC Science exam have to do with physical sciences, which includes questions on matter and energy flow.

The entire science section of the TASC includes 48 multiple-choice questions if you're taking the test on a computer (49 questions for the paper-and-pencil format). You'll also answer a constructed-response question and 8 stimuli questions; there is also one additional technology-based question in the computer-based version. You'll have 85 minutes to complete the entire science test.

4 Lessons in Chapter 3: TASC Science: Matter & Energy Flow in Organisms
Test your knowledge with a 30-question chapter practice test
Living Systems Requirement for Free Energy and Matter

1. Living Systems Requirement for Free Energy and Matter

Free energy and matter are required by all living things in order to grow, reproduce, and maintain biological processes. Additionally, free energy and matter must also be recycled through the environment in order to remove dead material and allow for new growth.

Energy and Life: The Transformation of Energy in Living Organisms

2. 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.

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!

Cellular Respiration: Energy Transfer in Cells

4. 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.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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