This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Excretory System (Kidney, Bladder) Acid-Base Balance, Subject name: Physiology
Glucose transpo/reabsorption in the kidneys is inhibited by: 
Select and explain. 
A. Tetrodotoxin, B. GLUT, C. SGLT, D. Phlorhizin
D: Phlorhizin
Answer: D: Phlorhizin 
Explanation: Phlorizin is a plant glucoside that competitively binds to SGLT - 2 in the renal tubules, hence preventing glucose binding.