An animal cell lacking oligosaccharides on the external surface of its plasma membrane would likely be impaired in which function? a) transporting ions against an electrochemical gradient
b) cell-cell recognition
c) maintaining fluidity of the phospholipid bilayer
d) attaching to the cytoskeleton
e) establishi
f) ng the diffusion barrier to charged molecules

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei.