Building Blocks of Life: Monomers and Polymers
Think of biological molecules like construction sets - monomers are the individual bricks, whilst polymers are the finished structures built from identical pieces joined together. This simple concept explains how your body creates everything from energy stores to muscle fibres.
Two key reactions control this molecular construction site. Condensation reactions join monomers together by removing water molecules, like welding pieces with the loss of steam. Hydrolysis reactions do the opposite - they break apart large molecules by adding water back, which is exactly what happens when you digest food.
Carbohydrates follow the CHO formula and serve as your body's primary energy source. Monosaccharides like glucose are single sugar units that dissolve easily in blood for quick transport around your body.
Quick Tip: Remember that alpha glucose (used in starch) has hydrogen above the first carbon, whilst beta glucose (used in cellulose) has the OH group above - this tiny difference completely changes their properties!
