Course Category: Gastroenterology

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The Chemistry of Carbohydrates

Carbohydrates (also called saccharides) are molecular compounds made from just three elements: carbon, hydrogen and oxygen. Monosaccharides (e.g. glucose) and disaccharides (e.g. sucrose) are relatively small molecules. They are often called sugars. Other carbohydrate molecules are very large (polysaccharides such as starch and cellulose). https://youtu.be/8Q4toJyrgKU Carbohydrates are: a source of energy for…
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Triacylglycerol Metabolism

Triacylglycerides possess a glycerol backbone, derived from either glyceraldehyde-3-phosphate or dihydroxyacetone phosphate produced in glycolysis. Esterified to the glycerol backbone are three fatty acid chains, which consist of nonpolar hydrocarbon tails that vary in their length as well as the degree of saturation. https://youtu.be/DF4hQveQ9g8 Triacylglycerol occurs in human metabolism in two roles, namely (a)as…
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Metabolic Regulation

Metabolic regulation is the physiological mechanism by which the body takes in nutrients and delivers energy as required. Metabolic regulation works ultimately at a molecular level, mainly by modulation of enzyme activities that function together as a whole system to sense the balance of energy coming in and energy required. The different organs in the…
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Energy, Enzymes and Metabolism

Metabolism is the sum of both catabolism (pathways that break down molecules for generation of cellular energy) and anabolism (pathways that build macromolecules using cellular energy). Here, we will discuss metabolism with regards to the Laws of Thermodynamics, Enzymology, and go over some of the major metabolic pathways utilized by…
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