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Metabolism: From Food to Fuel

Fat Paradox

Learning Objectives

Fat is a more efficient energy storage molecule than glycogen.

There is an evolutionary advantage to storing energy as fat.


Students calculate how much an example man and woman would weigh if their bodies stored energy as glycogen instead of fat.

Fat Paradox Student Worksheet (fillable pdf)

Post-activity Discussion


Print-and-cut graphics of most of the molecules featured in the Metabolism: From Food to Fuel module.

Molecule Cut Outs


A PowerPoint presentation outlining key information about this important molecule. More detailed information can be found on the ATP page on the Learn.Genetics website.

ATP Classroom Presentation


Metabolism: From Food to Fuel was a collaborative project between The Genetic Science Learning Center at The University of Utah, a group of expert scientists, and a cohort of experienced, talented master teachers from around the United States. This work was supported by a Science Education Partnership Award, sponsored by the National Institutes of Health. Award number R25OD011129.