NEET2006BotanyPhotosynthesis in Higher PlantsActual
Which of the following statements regarding mitochondrial membrane is not correct ?
Options
- Athe outer membrane resembles a sieve
- Bthe outer membrane is permeable to all kinds of molecules
- Cthe enzymes of the electron transfer chain are embedded in the outer membrane
- Dthe inner membrane is highly convoluted forming a series of infoldings
Correct answer
C. the enzymes of the electron transfer chain are embedded in the outer membrane
Step-by-step solution
In mitochondria, the outer membrane is semi permeable, and thus resembles a sieve permeable to all molecules of 10,000 Daltons. The inner membrane is selectively permeable and highly convoluted, forming a series of infoldings known as cristae. The enzymes of the electron transport chain are found in the inner membrane, while the outer membrane contains enzymes involved in mitochondrial lipid synthesis. Related Theory The inner membrane surrounds a central fluid-filled space called inner chamber or mitochondrial mat