None of them.
I'm assuming that you left off an option. a prokaryotic cell is a single-celled organism, generally a bacteria. an example would be e-coli.
The slightest change in pH can destroy the substance or organism. The pH of a cell's interior helps regulate the cell's chemical reactions. For example, the pH of blood is 7.4, if blood falls to 6.8 or lower or 8.2 or higher, it results in death.
<span>Damage to the area of the brain called the prefrontal cortex can disrupt behaviors that depend on working memory. This area is located at the front of the frontal lobe. It is in charge of planning and helps with personality development.</span>
Answer:
lysosomes
Many components of the cell eventually wear out and need to be broken down and the parts recycled. This activity takes place inside the cell in specialized compartments called lysosomes.
