The below mentioned article includes a list of three experiments on permeability. 1. Experiment to study the rates of penetration (permeability) of various organic solvents into living epidermal cells: Requirements: Onion bulbs, slides, cover slip, microscope, water, stop watch, glucose, sucrose, glycerol, methyl alcohol, tertiary butyl alcohol (TBA). Method: 1. Take an onion bulb and peel off a large segment [...]
The below mentioned article includes a collection of seven experiments on enzyme activity. 1. Experiment to demonstrate the activity of enzymes: Requirements: Benzidine solution, razor, thin sections of actively growing root (or germinating seeds or germinating pollen grains), phosphate buffer, hydrogen peroxide (1%), ammonium chloride (5%), starch paste. Method, observations and results: 1. Cut thin sections of fast-growing roots or [...]
The below mentioned article includes a list of three experiments on paper chromatography. 1. Experiment to separate amino acids in a mixture by paper strip chromatography: Principle: It is based on the fact that paper chromatography separates compounds on the basis of their different rates of migration of filter paper (cellulose). The rates of migration depend upon the solvent which [...]