Brandon burns reports that because of his injury, one third of his brain tissue was destroyed. despite this, he is still able to talk, think, and feel emotions, although he has some paralysis and loss of sensation on the right side of his body. and there is no doubt that he lost a substantial number of or the specialized cells that communicate through electrical and chemical signals.

  neurons

Brandon Burns lost a substantial number of specialized called neurons.

The neurons or nerve cells are specialized cells that communicate (receives, processes, and transmits)  information throughout the body via electrical and chemical signals.  

Different types of neurons responsible for different tasks in the human body includes sensory neurons, motor neurons, and interneurons.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products