11 April 2011
Endothermy & ectothermy
1. Discuss the functions of the excretory system.
2. Describe how nitrogenous wastes are formed.
3. List and describe the function of each organ and structure in the urinary system.
Filter blood, remove wastes, regulate solute concentration
Uric acid, urea
Kidneys, nephrons, collecting tubules, ureters, urinary bladder, urethra
Filtration by glomerulus, proximal convoluted tubule
Reabsorption by loop of Henle, distal convoluted tubule
Secretion by collecting duct
Circulatory and respiratory systems