Solution Found!
Aquaporins exclude passage of hydronium ions (H30+). But
Chapter 0, Problem 7.2(choose chapter or problem)
Aquaporins exclude the passage of hydronium ions (\({{\rm{H}}_{\rm{3}}}{{\rm{0}}^ + }\)). But recent research has revealed a role for some aquaporins in fat metabolism, in which they allow passage of glycerol, a three-carbon alcohol (see Figure 5.11), as well as \({{\rm{H}}_{\rm{2}}}{\rm{0}}\). Since \({{\rm{H}}_{\rm{3}}}{{\rm{0}}^ + }\) is much closer in size to water than is glycerol, what do you suppose is the basis of this selectivity?
Questions & Answers
QUESTION:
Aquaporins exclude the passage of hydronium ions (\({{\rm{H}}_{\rm{3}}}{{\rm{0}}^ + }\)). But recent research has revealed a role for some aquaporins in fat metabolism, in which they allow passage of glycerol, a three-carbon alcohol (see Figure 5.11), as well as \({{\rm{H}}_{\rm{2}}}{\rm{0}}\). Since \({{\rm{H}}_{\rm{3}}}{{\rm{0}}^ + }\) is much closer in size to water than is glycerol, what do you suppose is the basis of this selectivity?
Step 1 of 2
Given data:
Aquaporins exclude the passage of hydronium ions (\({{\rm{H}}_{\rm{3}}}{{\rm{0}}^ + }\)). But recent research has revealed a role for some aquaporins in fat metabolism, in which they allow passage of glycerol, three-carbon alcohol (see Figure 5.11), as well as \({{\rm{H}}_{\rm{2}}}{\rm{0}}\). \({{\rm{H}}_{\rm{3}}}{{\rm{0}}^ + }\) is much closer in size to water
than is glycerol.
