CAIE A-Level Biology A2 14.1.7 Nephron Structure and Function Questions

any four from:
1 microvilli, for large surface area / increases surface area (for reabsorption) ;
2 cotransporter (proteins) for movement of, glucose / amino acids (with sodium ions) ;
3 tight junctions / described, to, stop substances passing in between cells / cause substances to pass though cells ;
4 many mitochondria to provide ATP for, active transport / pumping of $\mathrm{Na}^{+}$;
5 folded basal membrane for many sodium (potassium) pumps ;