Membrane Movement and Epithelial Transport

what is the intracellular glucose concentration?

low glucose concentration inside the cell

what is the extracellular glucose concentration?

high glucose concentration outside the cell

what is the intracellular Na+ concentration?

low Na+ concentration inside the cell

what is the extracellular Na+ concentration?

high Na+ concentration outside the cell

what is the intracellular Ca2+ concentration?

low Ca2+ concentration inside the cell

what is the extracellular Ca2+ concentration?

high Ca2+ concentration outside the cell

what is the intracellular K+ concentration?

high K+ concentration inside the cell

what is the extracellular K+ concentration?

low K+ concentration outside the cell

what is the intracellular O2 concentration?

low O2 concentration inside the cell

what is the extracellular O2 concentration?

high O2 concentration outside the cell

what is the intracellular CO2 concentration?

high CO2 concentration inside the cell

what is the extracellular CO2 concentration?

low CO2 concentration outside the cell

which molecules can move by simple diffusion?

small nonpolar lipid soluble molecules

what requires some type of transporter (specifically channel)?

ions, H2O via aquaporins

what requires some type of transporter (specifically carrier)?

glucose

movement of Na+ from ECF into cells moves by () because ()

movement of Na+ from ECF into cells moves by movement through a water filled channel because it follows the electrochemical gradient

movement of aldosterone into target cell moves by () because ()

movement of aldosterone into target cell moves by simple diffusion because it is non polar, small, and moving down the concentration gradient

movement of glucose into renal proximal tubule cell moves by () because ()

movement of glucose into renal proximal tubule cell moves by active transport because it is moving against the concentration gradient

movement of glucose into muscle cell moves by () because ()

movement of glucose into muscle cell moves by facilitated diffusion because it is moving down the concentration gradient