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Glucose
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Diagram showing the chemical structures of four small organic molecules: glucose (a sugar), glycine (an amino acid), myristic acid (a fatty acid), and adenosine triphosphate or ATP (a nucleotide), each labeled to illustrate their molecular composition and family. A biochemical pathway diagram showing the catabolism and biosynthesis of glucose and glycogen, with glucose breakdown reactions on the left and synthesis reactions on the right, interconnected by labeled arrows and chemical intermediates. Glucose Diagram showing how fatty acids are mobilized from adipose tissue, transported in the bloodstream, processed in the liver, and delivered as energy sources such as fatty acids, triglycerides, and ketones to the muscle, brain, and heart. Arrows illustrate the movement and conversion of lipids, glucose, glycerol, and ketones between adipocytes, liver, muscle, heart, and brain. Diagram showing the process of cellular respiration, where glucose and oxygen are converted into carbon dioxide and water, with energy released as indicated by red arrows. The chemical equation C6H12O6 plus 6O2 yields 6CO2 plus 6H2O is displayed.
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How does your body convert food into energy?
Cellular respiration releases stored energy in glucose molecules and converts it...
Video: Encyclopædia Britannica, Inc.
How hibernating frogs survive in freezing temperatures
What's the chemistry of hibernation?
Video: © Open University (A Britannica Publishing Partner)
The truth about high-fructose corn syrup and sugar
Explaining the chemical differences between high-fructose corn syrup and sugar.
Video: © American Chemical Society (A Britannica Publishing Partner)
The chemistry of digestion: How food is broken down
Learn about the chemical process the human body uses to digest carbohydrates, proteins,...
Video: © American Chemical Society (A Britannica Publishing Partner)
The Relationship Between Photosynthesis and Breathing
Learn about the role of photosynthesis in glucose and oxygen production in plants....
Video: Encyclopædia Britannica, Inc.
What really makes a nutritious and complete breakfast?
Discover what constitutes a complete breakfast.
Video: © American Chemical Society (A Britannica Publishing Partner)

Images

Small organic molecules including adenosine triphosphate
Examples of members of the four families of small organic molecules: sugars (e.g.,...
Encyclopædia Britannica, Inc.
Glucose and glycogen catabolism and biosynthesis
The catabolism and biosynthesis of glucose and glycogen involve multiple chemical...
Encyclopædia Britannica, Inc.
Glucose
A molecular model of glucose.
© Sashkinw/Dreamstime.com
hormone signaling; adipose tissue
When hormones signal the need for energy, fatty acids and glycerol are released from...
Encyclopædia Britannica, Inc.
glycolysis; cellular respiration
During the process of glycolysis in cellular respiration, glucose is oxidized to...
Encyclopædia Britannica, Inc.
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