35. Which of the following statements regarding Glycolipids (such as gangliosides) is correct?
1. contain oligosaccharide chains with negatively charged residues.
2. constitute about 20% of the total lipid mass in the plasma membrane of neurons.
3. affect the electrical environment of the membrane.4. found in the extracellular leaflet (facing away from the cytosol) in the cellular membranes.
(A) 1 only
(B) 2 and 4
(C) 1, 3 and 4
(D) 2 and 3
(E) All