TOAILE SETOFOLO 2022/1569
SEABATA MAPETJA 2022/1274
MOSHATO HLALEFANG 2022/1100
TITLE: OSMOSIS IN PLANT CELLS
AIM: TO INVESTIGATE THE EFFECTS OF SALT CONCENTRATION ON THE POTATO CELLS THROUGH
OSMOSIS
INTRODUCTION: TAKE THE POTATOES AND CUT THEM INTO FOUR EQUAL CYLINDRAL PIECES AND POUR
THEM INTO DIFFERENT TEST TUBE WITH DIFFERENT SOLUTION. AFTER FIVE MINUTES TEST FOR
FLEXIBILITY OF THE CYLINDRAL POTATOES
MATERIAL:
APPARATUS
TEST TUBES * 4
SCALPEL
FORCEPS
CHEMICALS
SALT
WATER
PROCEDURE: STEP 1 POTATOES WERE CUT INTO FOUR EQUAL CYLINDRAL PIECES
STEP2 TEST TUBE 1 AND 2 WERE FILLED WITH TAP WATER AND TEST TUBE 3 AND 4 WERE
FILLED WITH WATER AND SALT SOLUTION
STEP 3 TWO CYLINDRAL PIECES WERE DROPPED IN TEST TUBE 1 AND 2 WHILE TWO
CYLINDRAL PIECES WERE DROPPED IN TEST TUBE 3 AND 4
STEP 4 OBSERVATION TOOK FIVE MINUTES
RESUTS: AFTER FIVE MINUTES THE FIRST TWO CYLINDRAL POTATOES THAT WERE IN THE TEST TUBES
WITH TAP WATER WERE NOT FLEXIBLE WHILE THE OTHER TWO CYLINDRAL POTATOES IN THE TEST TUBE
WITH SALT SOLUTION WERE FLEXIBLE
CONCLUSION: OSMOSIS IS THE SPONTANEOUS PASSAGE OF WATER SOLVENTS THROUGH A
SEMIPERMEABLE MEMBRANE AND THE CYLINDRAL POTATOES WAS FLEXIBLES BEACOUSE THE SALT
SOLUTION WAS ABSORBED INTO THE POTATOES WHILE THE CYLINDRAL POTATOES IN TAP WATER
WAS NOT FLEXIBLE BECAUSE THE WATER WAS NOT ABLE TO BE ABSORBED.