Which membrane of mitochondria is porous? (a) Inner membrane (b) no membrane (c) both membranes (d) outer membrane
Answers
Answer:d}outer membrane
Explanation: The outer membrane has many protein-based pores that are big enough to allow the passage of ions and molecules as large as a small protein.
Answer:
outer membrane
Explanation:
Mitochondria are double- membrane-bound structures. The membrane of a mitochondrion is divided into the inner and outer membranes, distinctly divided into two aqueous compartments – outer and inner compartments. The outer membrane is very porous (containing the organelle), while the inner membrane is deeply-folded.
These folds are known as cristae. Cristae increase the surface area inside the cell. They are the sites for ATP-generating chemical reactions. The membrane of a mitochondrion contains specific enzymes meant for specific mitochondrial functions. Hence, the mitochondria are the sites for aerobic respiration. They have their own DNA and ribosomes. Thus, they are able to make their own proteins. This is why they are considered as semi-autonomous organelles