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The experiments in this program use a radioactive isotope of carbon (14C) to demonstrate some of the techniques for studying photosynthetic metabolism and the translocation of the newly synthesized carbohydrate from the chloroplast to the various parts of the plant where it is utilized in growth and respiration. There are two main experiments in the program, both using the pea plant. The first is an investigation of photosynthetic metabolism in which each of three leaves is supplied with 14CO2 for one minute but left in the presence of light for varying amounts of time. Using 14C-labelled reference sugars, the principal photosynthetic products are identified chromatographically. The second experiment is an investigation of the pattern of distribution of 14C-labelled assimilate within the plant. (15 minutes)
Length: 15 minutes
Copyright date: ©1990
Recommended by Science Books & Films.
Prices include public performance rights.
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