Which statement is true of both active transport and facilitated diffusion
a: both require atp
b: both involve proteins in the cell membrane
c: both occur in only one direction
d: both move materials down a concentration gradient

B. both involve proteins in the cell membrane

Aneutral atom must have the same number of neutrons and protons? no, they must have the same number of protons and electrons

Ithink most frequently occurring lab-acquired infection. proper way to clean up a small blood spill that has dried on surface are to be used when caring for all patients at all times. which of the following actions would violate a lab safety rule.