Answer:
Some molecules, such as carbon dioxide and oxygen, can diffuse across the plasma membrane directly, but others need help to cross its hydrophobic core. In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as <u>channels</u> and <u>carriers</u>.
Answer:
if you are talking about miles the answer would be is 0.0001509932(divided by 160934)
if you are talking about mililiters it would be 24.3(multiply times one)
hope this helps