Respuesta :

curranms030238

Answer:

isn't it oxygen and carbon dioxide that moves easily throughout the membrane

Explanation:

If brainiest is earned its greatly Appreciated

bethanymorris155

Answer:

The answer is oxygen gas

Explanation:

I took the UsaTestPrep. "While small, non-polar molecules, such as oxygen and carbon dioxide can diffuse easily across the membrane, large or charged molecules must have the help of a transport protein to cross the membrane."