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.
Cholesterol levels. Normal cholesterol level is anything below 200 mg/dl (5 mmol/l) for men and women, or below 160 mg/dl (4 mmol/l) for patients with cardiovascular disease or diabetes.Normal HDL cholesterol level is above 40 mg/dl (1,1 mmol/l) for men and above 50 mg/dl (1,3 mmol/l) for women.Normal LDL cholesterol level is below 100 mg/dl (3 mmol/l) for men and women, and below 75 mg/dl (2 mmol/l) for patients who suffer from cardiovascular disease or diabetes.ormal cholesterol level is anything below 200 mg/dl (5 mmol/l) for men and women, or below 160 mg/dl (4 mmol/l) for patients with cardiovascular disease or diabetes.