CHAPTER IVOBSERVATION RESULT AND DISCUSSION1. Observation Result1. Activity ITable I : Cell condition in isotonic, hipotonic and hipertonic solutionNoTime(minutes)Change of length in Different NaCl concentration (mm)

0.4%0,2 %0.8%1%2%4%

15000000

210002000

315002000

420114011

525111122

630111133

735121133

840421233

945422244

1050532345

1155532457

1260532468

2. Activity IITable II : Osmosis event in Rana cancarivoras skinNoTimeDorsal (2%) mmVentral (4%) mm

118.2012

218.3022

319.2023

419.5023

520.2023

620.5023

721.2023

821.5023

922.2033

1022.5033

1123.2033

1223.5033

1300.2033

1400.5033

1501.2033

1601.5033

1702.2033

1802.5033

1903.2033

2003.5033

2104.2033

2204.5033

2305.2033

2405.5033

2506.2033

2606.5043

2707.2043

2807.5043

2908.2043

3008.5044

3109.2044

3209.5044

3310.2044

3410.5044

3511.2044

3611.5044

3712.2044

3812.5044

3913.2044

4013.5045

4114.2045

4214.5045

4315.2045

4415.5045

4516.2045

4616.5045

4717.2045

4817.5045

3. Activity IIITable III : Osmosis event in Gallus galluss intestineNoTimeNaCl 6% (mm)NaCl 8%(mm)

118.2031

218.5031

319.2042

419.5043

520.204,33

620.504,34

721.2055

821.5055

922.2055,5

1022.5055,5

1123.2066

1223.5066

1324.2066

1424.5066

1501.2066

1601.5076

1702.2076

1802.5076

1903.2076

2003.5076

2104.207,56

2204.507,56

2305.207,56

2405.507,56

2506.207,56

2606.507,56

2707.2086

2807.5086

2908.2086

3008.5086

3109.2086

3209.5086

3310.2086

3410.5086

3511.2086

3611.5086

3712.2086

3812.508,56

3913.208,56

4013.508,56

4114.2096

4214.50996

4315.2096

4415.5096

4516.2096

4616.5096

4717.2096

4817.5096

4918.2096

B. Discussion1. Activity IOn this activity we used egg as sample that we want observe the move of liquid subtences of the egg. Based on observation we can found the final result for all concetration of NaCl solution is 3mm (0.2%), 5mm (0.4%), 4mm (0.8%), 2mm (1%), 6mm (2%), 8mm (4%).Based on observation we can found that NaCl is hipotonis, that cause the NaCl is move into the egg through the membrane and the liquid of the egg is move out trhough the straw. On our data is there is the mistake and not support the theory. It should be the more low concetration of NaCl, the higher liquid of egg is out. This is based on theory that we know if the solution will do osmosis from the low concentration to the high concentration because the water potential on low concetration is higher than the high concentration. Our mistakes maybe because the size of membrane is not same2. Activity IIOn this activity we used the ventral skin and dorsal skin from frog to observe the osmotic activity. As we know the frog can breath with the skin. It mean the skin of frog is semipermeable.Based on observation, we can found the final result is dorsal (4%) is 4mm and ventral (5%). Based on theory in the osmotic activity, the distiled water will move into NaCl through the semipermeable skin of frog because the the distiled water or aquades is have higher water potential than the NaCl solution

3. Activity IIIThis observation using the intestines of chickens to observe the events of osmosis. Observations made during the 24 hours by taking a 30-minute time interval. .. Based on the final results of the retrieval of data obtained for Aqueous NaCl; 6%, 8% respectively are 9 mm and 6 mm. it is in accordance with the theories expressed by Wulangi (1993), that a solution that has a low concentration, then the higher water potential. As does the opposite, when a solution has a concentration of high potential value the water is getting lower. Thus, if a solution has a high concentration of water potential values, lower. So the switch is aquades or distilled water into a tube containing a solution of NaCl which increase the volume of water in test tubes.