What is the manipulated, responding, and controlled variable in this lab?

we had to do a potato core isotonality lab. we weigh pieces of potato and then put it in sucrose solution for 2 days, then take it out and measure it again.What is the manipulated, responding, and controlled variable in this lab?
Independent Variable (aka. 'manipulated variable'): I can actually think of two, depending on how you did the experiment, and what the point of it was. Firstly, the solution into which the potato pieces are placed is going to be an independent variable, i.e. sucrose, distilled water. Secondly, another independent variable could be the starting weight of the potato pieces. But I get the feeling that the only independent variable you were concerned with was the solution, though Im not a mindreader





Dependent Variable (aka 'responding variable): The change in weight following the 2 day treatment. This is going to represent the volume of water that has travelled osmotically across the membranes of the cells.





Your controlled variables will be any variables that were kept constant across all of the trials. In other words, any factors that could have influenced the dependent variable, because we are only interested in how the independent variable has influenced the dependent variable. We want everything else to be constant so that we can say that any change that has occurred is due to the independent variable.What is the manipulated, responding, and controlled variable in this lab?
well the control is the specimen left the same so the part of the potato you didn't touch the





the manipulated part is called the dependent variable aka potatoes in sugar





the responding is the dependent variable aka effect ... so what happned to the potatoes

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