What types of molecules can move directly across the cell membrane?

Ineed to know why d is the correct answer asap

2. does the given statement describe a step in the transformation of the graph off(x) = x2 that would result in the graph of g(x) = -5x + 2)? a. the parent function is reflected across the x-axis. o yes nob. the parent function is stretched by a factor of 5. yes noonc. the parent function is translated 2 units up. o yes

Which of the following is required of a new drug?me