This question was attempted by many candidates and their performance was poor. In part (a) candidates took wrong answers such as components of physical fitness, flexor, muscles, lungs, kidney, cardiac/heart muscles, volumtary muscles, involuntary muscles, gymnastic muscles and polevault muscles as muscles that aid the process of respiration. In part (b) candidates wrote wrong answers such as white blood cells, carbondioxide, enzymes, inhalation, exhalation, respirational activities and recreational activities as componenets of oxyhaemoglobin.
However, the expected answers were as follows:
4(a) Muscles that aid the process of respiration
(b) Components of oxhaemoglobin
-oxygen - -haemoglobin/red blood cell
