No Because There Are A Lot Of Different Elements That Make Up Just One Cell And You Have Millions Of Them That Make Up You And Different Ones For Different Functions In Your Body. So I Wouldn't Call Them Simple At All
        
             
        
        
        
Humans and chimps genes may have split 13 million years ago.
        
             
        
        
        
Hello there! 
Your answer should be ATP is a stored form of energy.
You see, Think of it as the “energy currency” of the cell. If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell. Hope this works!
 
        
             
        
        
        
Answer:
I would say it's pectin secondary cell, but don't trust my word