No, that is not true. You burn calories in two ways- through your daily activities (like walking to your car, your heart beating, etc.), which is the majority of what you burn, and through exercise. The first person who responded to your post gave you a good article to check out that describes how this works in more detail. Here's a link: www.sparkpeople.com/resource/calorie_calcu
Take a look and let us know if you have more questions.