<span>The primary purpose of photosynthesis is to produce its own food which is glucose
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They are sandwiched between two layers of heads. Recall that the heads are hydrophilic therefore they will always be on the outside and the tails are hydrophobi therefore they willl always be away from water, there fore sandwiched. I'm a bio major, hope I helped :)
Chemosynthesis is the biological conversion of one or more carbon- containing molecules.
