Equal volumes of five concentrations of sodium chloride solution were placed into five containers. An identical piece of plant tissue was placed into each container and left for 48 hours.
The plant tissues were removed and the volumes of the sodium chloride solution were accurately measured. The results are shown below.
Which statements explain the results from 0.80 to $1.00mold{m^{-3}}$ sodium chloride?
1 There was no net movement of water into or out of the plant tissues.
2 The plant root tissues had a water potential of zero.
3 The plant tissues were fully plasmolysed.
1 )
1 and 2
2 )
1 and 3
3 )
2 and 3
3 only
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