Definition: A simple monosaccharide (sugar) with a molecular formula of C6H12O6; it is a principle source of energy for cellular metabolism.

Alright class, settle down, let’s take a look! Today we’re diving into something really important – glucose . Now, the dictionary gives us quite a mouthful, but let's break it down nice and slow. Think of it like this: “Glucose” is basically a tiny, sweet building block. It’s a monosaccharide , that means it’s just one single sugar molecule - no combining needed! And its formula, C6H12O6? That's like a secret code – six carbon atoms, twelve hydrogen atoms, and six oxygen atoms all working together. But the most important part is this: it’s your body’s main energy source! Like fuel for a car, glucose powers everything you do - from running around to thinking hard. It's used in cellular metabolism , which is just a fancy way of saying how cells use energy. So, remember: Glucose – it’s a simple sugar, C6H12O6, and the power behind your every move! Do you have any questions about this little sugar superstar?