* Glucose is a simple sugar: It's already in a form that's easily broken down by the body.

* Starch is a complex carbohydrate: It's made up of many glucose molecules linked together. The body needs to break down these long chains of glucose before it can use them for energy.

Here's a breakdown of the process:

* Glucose: Enters the bloodstream directly and is readily available for cells to use.

* Starch: Must first be broken down into individual glucose molecules through digestion. This process takes time and requires enzymes.

Therefore, glucose provides a faster energy source than starch. This is why glucose is often used to quickly boost energy levels, for example, in sports drinks.

However, it's important to note:

* Starch provides a longer-lasting source of energy: While glucose provides a quick burst of energy, starch provides sustained energy over a longer period.

* Both glucose and starch are important for health: A balanced diet should include both simple sugars and complex carbohydrates.

In summary: Glucose releases energy quicker than starch because it's a simple sugar that's readily available for cells to use. Starch, being a complex carbohydrate, needs to be broken down first, making it a slower energy source.