Question

explain plasmolysis and deplasmolysis with the help of a labelled diagram

Answer 1

Hope's apparatus is a glass cylinder encircled with a trough half-way up to contain a freezing mixture. Holes in the cylinder at the top and the bottom allow thermometers to be inserted into the water to sample its temperature. After a sufficient length of time the more dense water collects at the bottom at a temperature of 4°C