It does that by interacting with a chemical receptor on the surface of the cell.
疟原虫是通过跟血细胞表面的化学感受器交流来进入血细胞的。
喵星人知多少
They could just rely on their nose, but the vomeronasal organ has its own set of chemical receptors, so it can smell different smells.
他们可以只靠鼻子， 但犁鼻器有自己的一套化学受体，所以它可以闻到不同的气味。
英语百科
Chemoreceptor
A chemoreceptor, also known as chemosensor, is a sensory receptor that transduces a chemical signal into an action potential. In more general terms, a chemosensor detects certain chemical stimuli in the environment.