A scientist observers an enzyme polypeptide chain arranged in spiral turns that rise upward and are held in place by hydrogen bonds.which level is structure arrangement is he looking at?
want to be the reason you always have a smile on your face. I want to be the reason for your laughter. I want to be the reason behind the joy in your heart. I want to be the reason you fall asleep with your phone in your hand and a grin on your sleeping face. I want to be your reason for a lot of things. But most of all, I want to be the reason you want to fall in love again.
