You are working on a team that is designing a new drug. For this drug to work, it must enter the cytoplasm of specific target cells.

Which of the following would be a factor that determines whether the molecule selectively enters the target cells?

In designing a new drug, it must enter the cytoplasm of specific target cells in order for this drug to work. The similarity of the drug molecule to other molecules transported by the target cells can be a factor to determines whether molecules selectively enters the target cells.