Object: To demonstrate the phenomenon of dialysis with the help of a collodion bag. Requirements: Collodion bag, starch, salt, thread, beakers, water, iodine, silver nitrate, collodion (cellulose nitrate dissolved in ether and alcohol). Method: (a) Preparation of collodion bag: 1. Pour a small amount of collodion in a wide mouthed, clean and dry tube. 2. Revolve the tube so that [...]
The below mentioned article includes a collection of thirteen experiments on transpiration. 1. Experiment to demonstrate the transpiration phenomenon with the bell jar method: Requirements: Bell jar, well-watered potted plant, rubber sheet, glass plate, Vaseline. Method: 1. Take a well-watered, healthy potted plant and cover the pot with the help of rubber sheet. Only aerial parts of the plant should [...]
The below mentioned article includes a collection of top ten experiments on respiration in plants. 1. Experiment to demonstrate the utility of oxygen in respiration: Requirements: A conical flask, a bent tube, germinating seeds, caustic potash in a small container, a mercury dish. Method: Germinating seeds are taken in a conical flask in which a container of caustic potash is [...]