According to the principles of FITT, what is the relation between the intensity of an exercise and the time an exercise needs to be performed? Intensity has to do with how hard the particular exercise is, while time has to do with the duration of time the exercise is performed.
Metabolism is the process by which a cell converts nutrients into energy or materials. The conversion of nutrients into energy is called catabolism. For example, glucose is the cell's main source of energy.
