(A) Growth in plants and Growth in Animals:
Growth in plants:
1.Plants grow faster and continuously throughout their life span.
Growth in Animals:
1.Animals grow slowly and after reaching certain size and age, animals stop growing.
(B) Growth in unicellular organisms and growth in multicellular organisms:
Growth in unicellular organisms:
1.Growth - can be observed in only in vitro cultures
Growth in multicellular organisms:
1.Growth can be easily observed in in vitro as well as in in vivo.
(C) Catabolism and anabolism :
1.The biochemical reactions which are concerned with break down of complex organic substances into simple substances are collectively called Catabolism. E.g.,respiration.
1.The biochemical reactions which are concerned with the synthesis of complex substances from simple substances are collectively called Anabolism.E.g.,Photosynthesis.