Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.d. ADH triggers water reabsorption from the nephron loop.267views
Textbook QuestionExplain how the peritubular capillaries are adapted for receiving reabsorbed substances.342views
Textbook QuestionTubular reabsorption a. of glucose and many other substances is a Tₘ -limited active transport process, b. of chloride is always linked to the passive transport of Na⁺ , c. is the movement of substances from the blood into the nephron, d. of sodium occurs only in the proximal tubule.415views
Textbook QuestionGlucose is not normally found in the urine because it a. does not pass through the walls of the glomerulus, b. is kept in the blood by colloid osmotic pressure, c. is reabsorbed by the tubule cells, d. is removed by the body cells before the blood reaches the kidney.503views
Textbook QuestionWhich is reabsorbed by the proximal convoluted tubule cells? a. Na⁺, b. K⁺, c. amino acids, d. all of the above.432views
Textbook QuestionTwo physiology students are having a disagreement about renal function. Dan says that the kidneys work harder when you eat a high-salt diet, whereas Peter says that they work harder when you drink lots of water. Who is right, and why?342views
Textbook QuestionTrace the pathway a uric acid molecule takes from a glomerulus to the urethra. Name every gross or microscopic structure it passes through on its journey.415views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.a. Sodium ions and glucose are cotransported into the proximal tubule cell by secondary active transport.233views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.b. The distal tubule reabsorbs sodium ions and secretes potassium and hydrogen ions in response to ADH.220views
Textbook QuestionDilute urine is produced when decreased levels of______ are secreted:a. aldosteroneb. atrial natriuretic peptidec. ADHd. none of the above223views
Textbook QuestionFill in the blanks: The kidneys produce _____ urine when the osmolarity of the body's fluids increases. They produce _____urine when the osmolarity of the body's fluids decreases.307views
Textbook QuestionTrace the pathway taken by a molecule of urea through the kidney from the glomerulus to the renal pelvis if the urea is recycled.329views
Textbook QuestionWhy must the kidneys establish a concentration gradient in the interstitial fluid of the renal medulla in order to produce concentrated urine?296views
Textbook QuestionDrugs that treat hypertension, or high blood pressure, have the following actions. Discuss the specific effect that each drug will have on the kidneys.c. Blocking the Na+/Cl−/2K+ transport pumps in the thick ascending limb of the nephron loop202views
Multiple ChoiceWhich of the following solutes are primarily reabsorbed by primary active transport?172views4rank
Multiple ChoiceIn the proximal tubule, _________ ions are pumped out of the tubule via ____________ transport. This creates an ____________ gradient, causing water to be reabsorbed through _______________.158views2rank
Multiple ChoiceIn the proximal tubule, _________ ions are pumped out of the tubule via ____________ transport. This creates an ____________ gradient, causing water to be reabsorbed through _______________.158views2rank
Multiple ChoicePredict what would happen if the tubule wall of the descending limb suddenly lost all its aquaporins.138views2rank
Multiple ChoiceDr. Miller is a pediatric nutritionist working with a patient who has a low dietary calcium intake. Concerned about the possibility of hypocalcemia, she orders bloodwork. What hormone would you expect to be elevated in this patient’s bloodwork?163views3rank
Multiple ChoiceRyan just ate a very protein-rich meal. Because of this, the amino acid levels in his blood currently exceed the transport maximum and the renal threshold for amino acids (65 mg/dL). What will happen to the excess amino acids?163views2rank
Multiple ChoiceIn which section of the nephron is the process of reabsorption influenced by hormones?181views4rank
Multiple ChoiceThe reason glucose is detected in the urine of individuals with uncontrolled diabetes mellitus is that __________.1259views
Multiple ChoiceThe descending limb of the nephron loop is relatively impermeable to solutes and freely permeable to water.2029views1rank