1 Malpighian tubules are attached to the _____.A) bladder B) gut C) body wall 2 What structures, found along the excretory tubules of planarians, function to propel fluids (wastes) through the tubules to the outside of the body?A) Collecting ducts B) Nephridia C) Malpighian tubules D) Flame cells 3 Urea is produced by the _____.A) kidneys B) liver C) spleen D) large intestine 4 Converting amino groups to which of the following substances conserves the most water?A) Ammonia B) Urea C) Uric acid 5 The amino groups from amino acids may be broken down to _________ as a nitrogenous excretory product, but only if a good deal of water is available to wash it out of the body.A) ammonia B) urea C) uric acid 6 All of the following are true of atrial natriuretic hormone (ANH) EXCEPT:A) Is produced by the heart B) Is released when blood pressure is high C) Promotes the conservation of water in the body D) Promoted the excretion of Na+ 7 Blood volume and blood pressure are decreased by _____.A) aldosterone B) atrial natriuretic hormone C) anti-diuretic hormone 8 Anti-diuretic hormone _____.A) is produced by the kidneys B) decreases blood pressure C) causes less urine to form D) causes less water to be reabsorbed 9 All of the following substances are eliminated by tubular secretion EXCEPT:A) Ammonia B) Hydrogen ions C) Penicillin D) Salt molecules 10 The distal convoluted tubule is where _____ takes place.A) filtration B) reabsorption C) secretion 11 With untreated diabetes mellitus, there is an abnormally large amount of _____ in the filtrate.A) urea B) sodium C) glucose D) hemoglobin 12 Tubular reabsorption occurs at the _____.A) glomerular capsule B) proximal convoluted tubule C) collecting duct D) distal convoluted tubule 13 Which of the following is not filtered out of the blood during glomerular filtration?A) Red blood cells B) Glucose C) Water D) Urea 14 Urine formation requires all of the following EXCEPT:A) Salt-excreting glands B) Reabsorption C) Tubular secretion D) Pressure filtration 15 Urine is temporarily stored in the _____ until it is voided.A) gallbladder B) renal pelvis C) urinary bladder D) ureters 16 The _____ transports blood with nitrogenous waste to the kidneys for filtration.A) renal artery B) renal vein C) pulmonary artery D) pulmonary vein 17 Urine travels in collecting ducts to the _____.A) urinary bladder B) urethra C) renal pelvis D) gallbladder 18 ADH is associated with _____.A) glucose balance B) water balance C) protein balance 19 Athletes sometimes misuse recombinant human erythropoietin (rHuEPO) to do all of the following EXCEPT:A) Increase the number of red blood cells B) Increase the number of white blood cells to fight infection C) Increase the time to exhaustion D) Increase the oxygen being brought to tissues 20 List the parts of a nephron in the order in which they occur:A) Collecting duct, distal convoluted tubule, proximal convoluted tubules, glomerular capsule, loop of Henle B) Distal convoluted tubule, collecting duct, proximal convoluted tubules, glomerular capsule, loop of Henle C) Glomerular capsule, proximal convoluted tubules, loop of Henle, distal convoluted tubule, collecting duct D) Proximal convoluted tubules, glomerular capsule, loop of Henle, distal convoluted tubule, collecting duct