Now the head consists of the nucleus that contains a haploid number of chromosomes. So in males, in male humans that's 23 chromosomes. We also have the red section that is basically known as the acrosome. This is a golgi apparatus that is capable of releasing special digestive enzymes that are needed to penetrate the xcel to produce the zygote. So when the sperm cell combines with the excel for the sperm cell to get into our xcel it must use the digestive enzymes found inside the acrosome, the rest section to basically digest and penetrate the membrane of that egg cell. Now within the midsection we have these green organelles known as mitochondria.