Cell structure & Function. Cell Wall. Main function – provide support & protection for the cell Made of cellulose (carbohydrates) and protiens Located outside the cell membrane of plant, fungi, and some protist cells. Cell Membrane.
Theory that states - mitochondria and chloroplasts are descendents from ancient prokaryotic cells that were engulfed by other cells; the two cells formed a symbiotic relationship where both cells benefited. Evidence = mitochondria & chloroplasts have DNA, ribosomes, and can divide independently of the cellEndosymbiosis