Sodium and chloride also help to determine the resting potential. Sodium is positive and has a concentration gradient set up to flow INTO the cell, and chloride is negative and has a concentration gradient set up to flow INTO the cell. The resting conductance for these two ions is less than that of potassium, but is not zero. Their story (concentration gradient + electrical gradient) is very similar to that of potassium. These ions together determine the resting potential of the cell.
1 the U.S.A. ranks number 3 in the list of countries by population. 2  The population density in the United States is 35 per Km2 (92 people per mi2). 3  The total land area is 9,155,898 Km2 (3,535,111 sq. miles) 4  82.5 % of the population is urban (268,012,791 people in 2016)  The median age in the United States is 38.1 years.
The number of people living in a given area -- for example, Canada's average population density is about five people per square mile (near the lowest of any country on Earth), â¦ but the density of the West End of Vancouver is more than 35,000 people per square mile -- no world record, but up there, for sure.awaii's population as of 2011 is 1,372, 810 (est.), and the islands have an area of 28, 311 km2 (10, 931 mi2) therefore the population density is approximately 82.6 people pe â¦ r square km or 214 per square mile. 3 people found this useful. Rick Hindi. 5 Contributions.