For typical liver mitochondria, the area of the inner membrane is about 5x as large as the outer membrane due to cristae. This ratio is variable and mitochondria from cells that have a greater demand for ATP, such as muscle cells, contain even more cristae.he inner membrane of mitochondria is similar in lipid composition to the membrane of bacteria. This phenomenon can be explained by the endosymbiont hypothesis of the origin of mitochondria as prokaryotes internalized by a eukaryotic host cell.
This is the most widely used type of cell reference in formulas. Relative cell references are basic cell references that adjust and change when copied or when using AutoFill. Example: =SUM(B5:B8), as shown below, changes to =SUM(C5:C8) when copied across to the next cell.
Range of Cells. While references usually refer to individual cells-such as A1, they can also refer to a group or range of cells. Ranges are identified by the cell references of the cells in the upper left and lower right corners of the range. The two cell references used for a range are separated by a colon (:) which tells Excel or Google Spreadsheets to include all the cells between these start and end points.