One of the characteristic features of a living cell is that it controls the exchange of electrically charged ions across the cell membrane and therefore the electrical potential of its interior relative to the exterior. This Scholarpedia page is a basic introduction into the mechanisms underlying this process.
Here are the ranges for total cholesterol in adults: 1  Normal: Less than 200 mg/dL. 2  Borderline high: 200 to 239 mg/dL. 3  High: At or above 240 mg/dL.
the average or normal good cholesterol in men is 42 to 44 mg dl at all ages while the average good cholesterol in women is 53 mg dl before age 30 57 mg dl at ages 30 to 39 58 mg dl at ages 40 to 49 60 mg dl at ages 50 to 59 and 62 mg dl above 60en s average bad cholesterol is 136 mg dl before age 30 149 mg dl when they re 30 to 39 162 mg dl when they re 40 to 49 165 mg dl when they re 50 to 59 and 164 mg dl when they re above 60 according to controlling cholesterol the natural way