Choose all the answers that apply.

Which are true about calorie intake and energy use in your body?

1. Only muscle cells use ATP energy. Excess energy is stored as fat.
   
2. Monitoring how much you eat is as important as exercise for weight control.
   
3. If you exercise 30 minutes a day with wind sprints included in the workout, you do not need to worry about how many calories you eat.
   
4. Fat can be used as an energy source.