What three structures do the epithelial cells in the proximal convoluted tubule have and why does it make them well adapted for reabsorbtion?

1) Microvilli- provide large surface area of membrane - more space for protein carriers - facilitated diffusion 2) High density of mitochondria to provide ATP for active transport 3) There is only 1 layer of cells between the PCT + the capillary - short diffusion distance