Seren is attempting to get into her house but is having some difficulty as her key won’t fit in the lock. In anger, she questions what is wrong with her lock and key. Alfred, the science app, responds ...

Seren is attempting to get into her house but is having some difficulty as her key won’t fit in the lock. In anger, she questions what is wrong with her lock and key. Alfred, the science app, responds ...

Enzymes are molecular machines that carry out the chemical reactions that sustain all life, an ability that has captured the attention of scientists like me. Consider muscle movement. Your body ...