Macromolecules are huge molecules that make up living organisms and are essential for life. They are built from smaller units called monomers. These molecules provide energy, structure, and help cells function properly.

Examples:

• Carbohydrates: Sugars like glucose; fuel for energy.
• Proteins: Amino acids; build and repair tissues, enzymes.
• Lipids: Fats and oils; store energy, support hormones, protect organs.
• Nucleic acids: DNA and RNA; store and transfer genetic information.

Think of macromolecules as the building blocks and energy sources that keep your body running smoothly.