Chloroplasts contain chlorophyll and carotenoids. Chlorophyll directly absorbs light for use in photosynthesis. Carotenoids absorb light and transfer the energy from light to chlorophyll. The efficiency of photosynthesis varies with the wavelengths of the light that illuminates the chloroplasts. In an experiment to study the relationship between the incoming light wavelengths and the chemical reactions of photosynthesis using a species of green algae, a researcher labeled the CO2 supply to the algae with 14C, and the H2O with 18O.Which of the following results is expected?More 14C is found in the algae when it is illuminated by green light than when it is illuminated by blue-violet and red light.More 18O is found in the algae when it is illuminated by green light than when it is illuminated by blue-violet and red light.More 14C is found in the algae when it is illuminated by blue-violet and red light than when it is illuminated by green light.More 18O is found in the algae when it is illuminated by blue-violet and red light than when it is illuminated by green light.

Answered: Chloroplasts contain chlorophyll and…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Chloroplasts contain chlorophyll and carotenoids. Chlorophyll directly absorbs light for use in photosynthesis. Carotenoids absorb light and transfer the energy from light to chlorophyll. The efficiency of photosynthesis varies with the wavelengths of the light that illuminates the chloroplasts. In an experiment to study the relationship between the incoming light wavelengths and the chemical reactions of photosynthesis using a species of green algae, a researcher labeled the CO₂ supply to the algae with ¹⁴C, and the H₂O with ¹⁸O.

Which of the following results is expected?

More ¹⁴C is found in the algae when it is illuminated by green light than when it is illuminated by blue-violet and red light.

More ¹⁸O is found in the algae when it is illuminated by green light than when it is illuminated by blue-violet and red light.

More ¹⁴C is found in the algae when it is illuminated by blue-violet and red light than when it is illuminated by green light.

More ¹⁸O is found in the algae when it is illuminated by blue-violet and red light than when it is illuminated by green light.

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