Tony lifted weights for 2 hours and then jogged for 1 hour. What fraction of the full day was Tony not exercising?
John works at a nutrition supplement store. Every month, he has a quota of tubs to reach in sales. The amount of tubs he still has to sell by the end of each month can be approximated by the equation T = 500 - 20D, where T is the number of tubs left to be sold and D is the number of days he has worked that month. What is the meaning of the value of 500 in this given equation?
John is expected to sell 500 tubs per month.
What are the major functions of the proximal tubule?
Iso-osmotic fluid reabsorption, reabsorption of organic anions (e.g. glucose, amino acids), acid-base regulation (e.g. reabsorption of HCO3- and secretion of H+ and NH4+).