# Experiment to find the water potential of the cytoplasm of potato cell (Solanum tuberosum linnaeus

Biology IA                                                                                                                  Vivian Kok 12C

To find the water potential of the cytoplasm of potato cell (Solanum tuberosum linnaeus)

Observation:

1. Potato (Solanum tuberosum linnaeus) 1 strips turn into dark colour when it gets oxidized because it exposed to air too long.
2. Potato (Solanum tuberosum linnaeus) strips become turgid after putting in the 0.1 mol sucrose concentration for 30 minutes.
3. Potato (Solanum tuberosum linnaeus) strips become flaccid after putting in the 0.5 sucrose concentration for 30 minutes.

Raw data:

2.5cm potato (Solanum tuberosum linnaeus) strips, cock borer number 1 and number 2

Table 1.1

Mass of potato (Solanum tuberosum linnaeus) strips before putting into sucrose solution

Processing data:

X 100% =  % change in mass

Table 1.2

% Change in mass of the potato (Solanum tuberosum linnaeus) strips after putting into sucrose solution

Table1.3

Figure1.1

Y = -3.4136x + 10.546
0 = -3.4136x + 10.546
x= 3.09

Concentration of sucrose solution is 0.309 mol0.3mol when water potential of potato (Solanum tuberosum linnaeus) strips is equal to water potential of sucrose solution.

Table 1.4
Results of T-test2
Ho means “no significant difference between two sets of value”

If:

• P=1, it means the two sets of data, are exactly the same
• P=0 it means the two sets of data, are not the same at all.
• P< 0.05, we reject Ho (null hypothesis), which means there are significant ...