To my opinion the answer is C. Water is an accessible and maintainable resource in the majority of the world. I say this because its definitely not A, or D. It could possibly be B but C gives more information on why so many of the sustainable energy options are water solutions. Hope this helps and that you get the question correct, God bless!
Answer:
D
Explanation:
Intestinal cell takes in glucose against Concentration gradient (uses energy in the form of ATP) to transport glucose into cell.
In blood cell, uptake of glucose occurs down concentration gradient. Hence, its facilitated diffusion (passive transport)
Glucose is a polar molecules due to presence of polar hydrophilic - OH group, hence carrier proteins are needed to provide a hydrophilic channel for glucose to enter the cell via facilitated diffusion.
