Eukaryotic cells separate competing biochemical reactions into different organelles. For example, lysosomes contain acidic hydrolases at pH 5 while cytoplasm is near pH 7.2. Mitochondria establish a proton gradient inside their inner membrane to drive ATP synthesis.
What is the BEST overall functional advantage of organellar compartmentalization?
- A
It guarantees that all reactions occur at the same pH and ion concentration
- Bcheck_circle
It allows incompatible chemical environments and processes to coexist within a single cell
- C
It limits the cell's ability to respond to changes in environment
- D
It eliminates the need for any membrane transport proteins
Explanation
Compartments isolate environments (pH, ions, enzymes) so that processes like protein degradation, oxidative phosphorylation, and DNA replication can occur in optimized conditions simultaneously.