Consider the above data when filling in the blanks for the following questions.

A scientist measures the cell volume of S. aureus cells in various NaCl solutions. She measures three different cell types, shown by the black (1st), blue (2nd) and red bars (3rd). One cell type is “wild type” S. aureus. The other two cell types have each had a gene deleted. These genes each encode a different sodium transporter membrane protein.

Which data most likely represents the cell volume of the wild type S. aureus?

In those cells that have expanded in comparison to the wildtype, the water has transferred from

Based on these data, the cell type represented by the red (3rd) bars