Cytoplasm: This internal soup of the bacterial cell is bounded on the outside by the cell envelope. The cytoplasm is mostly water, but within it are the bacterial inclusions-nucleoid, plasmids, ribosomes and storage granules-as well as the components necessary for bacterial metabolism.
Urine color changes can also be a symptom of an underlying disease, disorder or condition, such as dehydration, urinary tract infection, and kidney trauma or injury.
If you have noticed dark yellow colored urine persistently for 3-4 days, and if you are not consuming any medicines and foods that can change the urine color, you should immediately see your doctor. Dark yellow urine can be a symptom of jaundice, cirrhosis, other liver diseases, cystitis or urinary tract infection.