Question

what about the nucleosides? how could it cross the membrane?

Q6: How would you expect nucleosides and steroids to cross the plasma membrane? And what are the requirements for compounds to pass through the membrane [20% Points] plasma * The el membrane is Selectively permeable; hydrophobic molecules and Small polar molecules can diffuse through the lipid Layer, but ions and Larg polar molecules Cannot. Integral membrane proteins enable ians and lary polar molecules to pass through by passive or active transport. * Steroids are lipids as the bulk of the plasma membrane. Since lipids clon't repel each other, Steroids can slip through the plasma membrane enaided, even though they are much bigger than water and for molecules.

Answer 1

# Since nucleosides are hydrophilic in nature, they can not cross the hydrophobic plasma membrane. They could either transported by facilitated or active transport mechanism only.

Nucleotide transporter family proteins help in transporting these molecules according to the concentration gradient.