Anabolism and Catabolism
Cellular metabolism has two aspects
1. Anabolism : This aspect includes metabolic process by which complex cellular compounds are continuously synthesized from, simpler compounds for growth repair, secretion storage and reproduction. Thus it is the constructive phase of metabolism .It chiefly occurs in the cytosol.
2. Catabolism : This aspect includes metabolic processes by which larger molecules are continuously broken down to simpler molecules, releasing energy required for all cellular functions . Thus it is the degradative phase of metabolism its chief site are the mitochondria.