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Most important and abundant one are the phospholipids - amphiphatic molecules with an hydrophilic head and a hydrophobic hydrocarbon tails. They compose the membrane bilayer. Also important are the membrane proteins, which can be periheric and internal and can serve as channels, receptors, pumps etc.
Depending on the cell type the membrane can also contain cholesterol (in animal cells, enhances the membrane stability) or hopanes(in prokaryotes, same function as cholesterol) or ether-phospholipids with branched hydroharbon tails(in archaea, make the membranes more stable and resistant to severe conditions, as archaeas are extremophiles)
The major species present upon dissolution will be water and N₂O because N₂O is soluble in water.
Explanation:
By "major species," it means, "what type are most of the atoms gift in."
N2O is an ionic compound consisting of N2+ and O- ions. it's gift as molecules within the gas section, however once value-added to water, the ions dissociate (this is true of all robust acids). that the major species gift in answer are H+ (which is typically aforementioned to react with water to make H3O+ or different complexes with water, thus place this if you want).
The characteristic of life for frogs who bury themselves in mud and leaves at the bottom of lakes and ponds is a response characteristic