A protein spans the nuclear membrane, with a small extranuclear domain, a substantial segment crossing the nuclear membrane, and
a domain within the nucleus. It is______________.(a) a peripheral membrane protein(b) an integral membrane protein(c) a lipid-anchored protein(d) impossible
Integral membrane proteins are deeply embedded in the nuclear membrane. While some integral extend only into the membrane matrix, Some integral proteins span the whole nuclear membrane and are called trans-membrane proteins because the span from the extracellular nuclear membrane to the innercellular membrane. The serve as transport channels.
By which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules.
