Answer:1.) solute too large for channels
2.) solute not lipid soluble
3.) solute not able to move down concentration gradient.
Well in order for chemical digestion to occur period, a enzyme is needed.
In the mouth this enzyme is amylase
<span>The answer is: at least at least 2 hours after a meal is when chest physiotherapy should be performed. This is the answer because performing chest physiotherapy closer than that to a meal will increase the risk of vomiting and aspiration. Also, performing it immediately before a meal could tire our the client and impair the ability to eat.</span>
