I'm pretty sure it is: " D) None of the above "
<span>Lowered cardio-respiratory fitness is one of the best predictors. By not being in shape and having a weakened heart and lungs, one stands less of a chance of surviving issues that arise in these systems. Including a small amount of exercise in one's routine can alleviate many of the risks inherent with this lack of fitness.</span>
The membrane component that is important for allowing large charged molecules to pass through the membrane are TRANS MEMBRANE PROTEINS.
Trans membrane proteins are a type of integral proteins which spans the entirety of the biological membrane to which they are attached. Trans membrane protein function as gateway which permit the passage of specific substances across the membrane.