Standard #: SC.912.L.18.3


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Describe the structures of fatty acids, triglycerides, phospholipids, and steroids. Explain the functions of lipids in living organisms. Identify some reactions that fatty acids undergo. Relate the structure and function of cell membranes.


General Information

Subject Area: Science
Grade: 912
Body of Knowledge: Life Science
Idea: Level 2: Basic Application of Skills & Concepts
Standard: Matter and Energy Transformations -

A. All living things are composed of four basic categories of macromolecules and share the same basic needs for life.

B. Living organisms acquire the energy they need for life processes through various metabolic pathways (primarily photosynthesis and cellular respiration).

C. Chemical reactions in living things follow basic rules of chemistry and are usually regulated by enzymes.

D. The unique chemical properties of carbon and water make life on Earth possible.

Date Adopted or Revised: 02/08
Content Complexity Rating: Level 2: Basic Application of Skills & Concepts - More Information
Date of Last Rating: 05/08
Status: State Board Approved

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Related Resources

Lesson Plan

Name Description
The Last Supper: Identifying Macromolecules

The students will solve a mystery using laboratory tests for different types of macromolecules. They will use argumentation to justify and communicate their claim. They will construct explanations and communicate with one another to determine which macromolecule would be best to eat in different scenarios. Students will be able to identify the structure and functions of the four main types of macromolecules. The students will use laboratory testing to determine the identity of an unknown. They will fill in a chart about the structures, functions, and examples for each macromolecule type and then they will practice their knowledge by answering short response questions relating the macromolecules to the real world. Finally, they will review using a whole-class cooperative activity and take a quiz about the structures and functions of macromolecules.

Original Student Tutorial

Name Description
The Macromolecules of Life: Lipids

Learn about the basic molecular structures and primary functions of lipids with this interactive tutorial.

This is part 3 in a five-part series. Click below to explore other tutorials in the series.

Video/Audio/Animation

Name Description
Lipids Paul Anderson describes the lipids (of the fats). He explains how they are an important source of energy but are also required to cell membranes. He explains how the hydrocarbon tails in triglycerides contain energy available for life. He also explains how phospholipids construct, and cholesterol molecules main the cell membrane.

Student Resources

Original Student Tutorial

Name Description
The Macromolecules of Life: Lipids:

Learn about the basic molecular structures and primary functions of lipids with this interactive tutorial.

This is part 3 in a five-part series. Click below to explore other tutorials in the series.



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