a. Distinguish between an absorption spectrum and an action spectrum. b. Pondweed was exposed to each of

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a. Distinguish between an absorption spectrum and an action spectrum.

b. Pondweed was exposed to each of three different wavelengths of light for the same length of time. For each wavelength, the number of bubbles produced from the cut ends of the pondweed were counted and are shown in the table.

Wavelength of light / nm	Mean number of bubbles produced in unit time
450	22
550	3
650	18

Explain these results.

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Cambridge International AS And A Level Biology

ISBN: 9781107636828

4th Edition

Authors: Mary Jones, Richard Fosbery, Jennifer Gregory, Dennis Taylor

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Question Posted: Sep 01, 2021 02:05 AM

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a. Distinguish between an absorption spectrum and an action spectrum. b. Pondweed was exposed to each of

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Cambridge International AS And A Level Biology

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