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.
You learned that cell references can be relative, absolute or mixed. The type you use in a formula is important, as each behaves differently when copied or moved. You learned that relative cell references change based on where you copy them and that absolute references do not change. You can also have a cell reference with both types, or mixed. Keep the different types in mind the next time you are working with cell references and/or formulas.