Secure https/session.masteringbiology.com/myct/itemView?assignmentProblemID-97937552 Interpreting Data: Absorption Spectra and Photosynthetic Pigments Interpreting Dala Absorption Spectra and Photosynthetic Pigments O One cannot tef from this graph o The peak absorption for chioraphyl b is close to this wavelength so we can predict that blue ignt Can you answer the fołowing questons about photosyntheic pigments and the wavelengths of light they absorb? Use the absorpion spectra to answer the questions would be effecive o The qraph ndicates that chiorophylI a absorbs very itlte blue in so we can predect that blue iont would not be effective An instrument cafed a spectrophotometer measures the relative amounts of light of different wavelengths absorbed by a soluton of a pigment An absorption spectrum graphs the results obtained trom a spectropholometer In the absorption spectra graphed below, the three curves show the absorption of various wavelengths of sght by the puments chlorophyll& chlorophyll b and carotenoids Use the graph to answer the questions to the nght Submit My Answers Gvr Up Part F Chloro- | | phytl a An action spectrum plots the rare of phososyndhesis at various wavelengths of visibie light, and shows that blue light with a wavelength of about 490 nm is efective in driving photosynthesis, Based on this infomation and the absorption spectra shown at left, what role may chlorophyl b and Chlorophyll b carotenoids play in photosynthesis? Carotenoids These pigments probably piay onty a photoprotectve role (acsorting excess Noht energy tha could damage chiorophyl 6) and a role in producing the colors of fal tolage 600 Because chiorophytl a is found in the reaction center compigves of both photosystens and Wavelength of light (nm) can assume that these omer pigments pay no role in photosynthesis These pioments sre able to absorb mare weveiengths of hgot (and thus more ererge mn cho opty a one can aboob As part of ign harvesang campleses in probosysos they br osden the range af aght that can be used in the aght reactons