Investigating Osmosis with Onion Cells October 4, 2019 In class this week Y10 pupils were investigating the effect of osmosis on red onion cells under the microscope. Pupils added either a drop of distilled water or a drop of sodium chloride solution to onion cells and observed the cells under the microscope. Joy (10WG) took this picture of her plasmolysed onion cells. Water has moved out of the cells by osmosis and so the cytoplasm in each cell has shrunk to the middle of the cell. This is shown by the purple colour in each cell being only in the middle of the ce Krishna (10ER) took this picture of her turgid onion cells. Water has moved into the cells by osmosis and so the cytoplasm is full. This is shown by the purple colour filling each cell. FOBISIA Maths Competition 2023 Bangkok Prep is extremely proud of our Year 6 students Arinjay, Keen, Fumika and Sayo who were selected ... See More Pi Day 2023 Many digits of Pi were recited! Much cake was eaten by teachers! Our students celebrated Pi day this ... See More Bangkok Prep Parent Golf Society A Bangkok Prep Golf society has been created by parents. Events held are not serious golf tournaments ... See More