Trace plasma ultrafiltration and recovery of useful solutes through the glomerulus, capsule and proximal tubule.
Tę umiejętność sprawdza 8 zadań wzorowanych na arkuszach IB z lat 2022–2026.
The graph follows glucose in the filtrate of a healthy nephron. Which process best explains the decrease along the proximal convoluted tubule? A. Glucose is transported from the filtrate and returned to the circulation B. Water enters the filtrate…
A model sample contains 24 mg urea per 100 mL of plasma but 1440 mg per 100 mL of final urine. Explain how the kidney produces this concentration increase.
(a) Outline the route and processes by which carbon dioxide in blood arriving at the lungs reaches the outside air. (b) Explain why final urine can contain more concentrated urea than blood plasma. (c) Compare excretion in humans with excretion in a freshwater…
(a) Outline the route and processes by which carbon dioxide in blood arriving at the lungs reaches the outside air. (b) Explain why final urine can contain more concentrated urea than blood plasma. (c) Compare excretion in humans with excretion in a freshwater…
Membrane transport and kidney function contribute to water and solute balance. (a) Outline four different ways substances cross the plasma membrane, giving an example for each. (b) Explain how kidney regions contribute to water balance and excretion of…
Where is filtered glucose normally reabsorbed into the blood, and which transport principle contributes to its uptake from the tubule lumen? A. Glomerulus; formation of filtrate alone B. Collecting duct; evaporation C. Proximal convoluted tubule; sodium-linked…
Which structural feature helps water and small solutes enter the filtrate from glomerular blood? A. A thick waterproof wall around every capillary B. An absence of blood pressure inside the glomerulus C. Fenestrations in glomerular capillary endothelium D.…
Identify (i) X and (ii) Y.
Zapisujemy na Twoim urządzeniu to, bez czego serwis nie działa, np. zalogowanie. Plików analitycznych użyjemy tylko za Twoją zgodą. Szczegóły w polityce prywatności.