BIOSC-101 Lecture Notes - Lecture 4: Polysaccharide, Lipid Bilayer, Macromolecule

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Organic molecules that consist of carbon, hydrogen, and oxygen atoms in a. A single sugar (carbohydrate) monomer is called a monosaccharide. Two sugar monomers bonded together form a disaccharide. A carbohydrate made of 2 monosaccharides linked together by a covalent bond. A carbohydrate that consists of long chains of monosaccharides bonded together. Glucose is used by plants and animals as an important energy storage molecule when used as the monomer to create a carbohydrate macromolecule. Lipids are a diverse group of macromolecules united by their hydrophobic, nonpolar nature. We are most familiar with the lipids known as fats. Fats are used to store energy for later use. They also provide structural support and cushioning for many animals. The subunit of lipids is fatty acids. Waxes are nonpolar lipids that form protective layers on plants and animals. Fats and oils are also called triglycerides because they are made of 3 fatty acids attached to one glycerol.

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