The gel-like material within the cell membrane is referred to as the cytoplasm. It is a fluid matrix, the cytosol, which consists of 80% to 90% water, salts, organic molecules and many enzymes that catalyze reactions, along with dissolved substances such as proteins and nutrients.
The River Thames is the second longest river in the United Kingdom and the longest river entirely in England, rising at Thames Head in Gloucestershire, and flowing into the North Sea at the Thames Estuary.
What is the name of the river that flows through London? There is an ongoing dispute as to the actual length of the River Thames. Official data from the Ordnance Survey map shows the source of the river near the Kemble Village in the Cotswolds. However, some locals believe that the Thames begins at Seven Springs, adding another 14 miles to the river.