UV Exposure and Bacterial Growth

UV Exposure and Bacterial Growth

Objective

Students should be able to explain the deleterious effects of ultraviolet radiation on the growth and development of plants and bacteria. Also students should be able to describe the effect of ozone on ultraviolet radiation.Materials

String bean and mustard green seeds, ultraviolet lamp, glass apparatus, potting soil, water trays, pots for the plants, glass plate, slide projector, autoclave, fluorescent poster board and chalk, slides, E. Coli bacteria, nutrient media, Petri dishes, Petri dishes with nutrient agar, incubator, Bunsen burner, test tube racks, NaCl, cardboard box, ring stand.

Strategy

Two experiments were performed to demonstrate the effect ...