Influence of Heat (temperature) and Chemicals on the Pigments from Root and Tissues of Plant. std 11 & 12 biology

Study the Influence of Heat (temperature) and Chemicals on the Release of Pigments from Root and other Tissues of Plant

Influence of heat on Beat root

AIM :-

To study the influence of heat (temperature) and chemicals on the release of pigments from root and other tissues of plant.

INSTRUMENTS AND MATERIALS

Test tubes, cork borer, blade,  beakers, measuring cylinder, thermometer, burner,

Fresh beet roots, alcohol, formalin, benzene, distilled water, ice cubes. 

Observation :-

Table  1 : Effect of temperature on leaching of pigments from the beet root.

Conclusion

Betacyabin is present in the cell sap of beet root in vacuoles when beet root is kept at  high temperature the permeability of cell membrane is effected. High temperature damages the membrane and pigment leaks out from the membrane. This leaking is maximum at high temperature.

Observation :-

Table  2 : Effect of various chemicals on the permeability  on the cell      membrane.

Conclusion:

The  organic solvents like formalin and alcohol damage the cell membrane by dissolving fat and denaturing proteins. This permeability of cell membrane increases. So more leaking of pigment takes place. 

More details view video:

Study the Influence of Heat (temperature) and Chemicals on the Release of Pigments from Root and other Tissues of Plant