Salt has a molar mass of 58.44 g/mol, glucose of 180.15 g/mol. 50 grams of glucose results in 278 millimoles of glucose. 9 g of sodium chloride correspond to 154 millimoles of sodium chloride. The osmolarity of the solution of sodium chloride, however, is 308 milliosmoles / liter.
In the natural world DNA usually becomes available by death and lysis of other cells, but in the laboratory it is provided by the researcher, often as a genetically engineered fragment or plasmid. During uptake, DNA is transported across the cell membrane(s) , and the cell wall if one is present.
Answers. Relevance. Rating Newest Oldest. Best Answer: A plasmid is a circle of DNA that bacteria can absorb into the cell. Many times, these new genes may help a bacteria adapt to its surrounding (i.e. the bacteria lives in an acidic environment, the new genes included in a plasmid may help the bacteria adapt to the environment).his is why an entire colony of bacteria may become immune to penicillin. Many scientists take advantage of this by inserting a gene that they want replicated into a plasmid and then inserting it into a bacteria.