The answer is muscle cells. This is because they are responsible
for either voluntary movement (skeletal muscle) or involuntary movement (smooth muscle). This movement requires energy to
power the movement of the actin and myosin action
that is the core of every muscle. Each myosin has an ATP-binding site.
I believe the answer is this:
DNA replication is called semi-conservative because half of the original double-helix appears in one daughter strand formed in replication if you need any more help then please comment and let me know ok. :)