Se efectúa un experimento en el que a la planta 1 se le suministra CO2 normal pero agua que contiene átomos de oxígeno radiactivos. A la planta 2 se le suministra agua normal pero CO2 que contiene átomos radiactivos de oxígeno. Se permite que ambas plantas efectúen fotosíntesis y se mide la radiactividad del oxígeno gaseoso y los azúcares producidos. Qué planta esperarías que produzca azúcares radiactivos y cuál oxígeno radiactivo, por qué?

Question

suepath2928 suepath2928

04-06-2020
Biology

contestada

Se efectúa un experimento en el que a la planta 1 se le suministra CO2 normal pero agua que contiene átomos de oxígeno radiactivos. A la planta 2 se le suministra agua normal pero CO2 que contiene átomos radiactivos de oxígeno. Se permite que ambas plantas efectúen fotosíntesis y se mide la radiactividad del oxígeno gaseoso y los azúcares producidos. Qué planta esperarías que produzca azúcares radiactivos y cuál oxígeno radiactivo, por qué?

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eyitbay eyitbay · Answer 1 · 2020-06-05T02:20:08+02:00

Answer:

The Oxygen liberated in photosynthesis comes from photolysis of water.

The CHO formed from Calvin Cycle during photosynthesis comes from reduction of CO2 with H+ of photolysis of water.

Therefore,since Plant 1 contains labeled Oxygen(from water) it will give radioactive Oxygen as the byproduct of its photosynthesis. It CHO is normal.

However,Plant 2, will contain radioactive CHO,because its radioactive CO2 will be reduced by H+ from photolysis of water to form radioactive labeled carbohydrate(CHO)

Explanation: