5:10 864 d2I.laurentian.ca Quiz 3 0:22:16 elapsed The transport maximum is the a) steepest any concentration gradient can become b) highest the glomerular filteration rate can increase without inhibiting kidney function c) greatest percentage of plasma entering the glomerulus that can become filterate d) upper limits of reabsorption due to saturation of carrier systems

To solve the quiz question regarding the transport maximum, let's analyze the options provided: 1. **Option a**: "steepest any concentration gradient can become" - This option refers to the concentration gradient, which is not directly related to the concept of transport maximum. 2. **Option b**: "highest the glomerular filtration rate can increase without inhibiting kidney function" - This option discusses the glomerular filtration rate (GFR), which is not the same as transport maximum. 3. **Option c**: "greatest percentage of plasma entering the glomerulus that can become filtrate" - This option relates to filtration but does not accurately describe the transport maximum. 4. **Option d**: "upper limits of reabsorption due to saturation of carrier systems" - This option correctly describes the transport maximum (Tm). The transport maximum refers to the maximum rate at which substances can be reabsorbed by the renal tubules when carrier proteins are saturated. Based on this analysis, the correct answer is: **d) upper limits of reabsorption due to saturation of carrier systems**.