We have two parts working for our central nervous system. The brain: it serves as the main control of the human body, it receives information from our senses and provides reaction. The spinal cord: this play a vital role to distribute all neurons throughout, it serves as a connection to provide transmission.
Answer: The solution was hypertonic
Explanation: The reason for this is the fact that the cell shriveled up. The shriveling was caused by water moving out of the cell. This movement is likely caused by a disbalance in solutes between the cell and the surrounding, with the surrounding containing a higher concentration of solutes. Diffusion tries to balance this by moving water out of the cell, thus increasing the concentration inside and reducing the concentration outside.
They no longer will be able to produce adequate amounts of ATP.