Which of the following substances crosses capillary walls primarily through water-filled clefts between the endothelial cells?

Question

Quizplus · Accepted Answer

[VII B 1,2]. Because $\mathrm{O}_{2}, \mathrm{CO}_{2}$, and $\mathrm{CO}$ are lipophilic, they cross capillary walls primarily by diffusion through the endothelial cell membranes. Glucose is water soluble; it cannot cross through the lipid component of the cell membrane and is restricted to the water-filled clefts, or pores, between the cells.

Which of the Following Substances Crosses Capillary Walls Primarily Through O2\mathrm{O}_{2}O2​

Which of the Following Substances Crosses Capillary Walls Primarily Through $\mathrm{O}_{2}$