Question

Which statement about the composition of membranes is TRUE? The inner and outer membranes of mitochondria have different protein compositions All biological membranes contain cholesterol Free fatty acids are major components of all membranes The lipid composition of all membranes of eukaryotic cells is essentially the same

Answer 1

The true statement about membrane composition is that the inner and outer membranes of mitochondria have different protein compositions, as the lipid and protein content varies with the specific functions of each membrane.

Step-by-step explanation:

The statement that is TRUE about the composition of membranes is that the inner and outer membranes of mitochondria have different protein compositions. This diversity is due to the specific functions that these membranes perform. All biological membranes contain cholesterol is not true because some prokaryotic organisms do not have cholesterol in their membranes.

It is also incorrect to say that free fatty acids are major components of all membranes, as the major membrane constituents are phospholipids and proteins. Lastly, the statement that the lipid composition of all membranes of eukaryotic cells is essentially the same is false, as the lipid and protein compositions vary based on the specific functions of each membrane.

Answer 2

Answer: Option A

Step-by-step explanation:

The correct statement is that the there is a difference in protein which is found in the outer membrane and inner membrane of the mitochondria.

The inner membrane of the mitochondria is folded to allow maximum surface area for the energy production.

The inner part of the mitochondria contains the enzyme ATPase for energy production.

The outer membrane of the mitochondria contains enzymes for the export and import of the various materials with the help of TOM40 complex and TIM23 complex.