{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

photosynthesis notes

look at action spectra so violet blue around 430 and

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ssory'Pigments' Absorp4on*Spectra* - absorption activity happens only at violet-blue and red! Ac4on*Spectra* What(colors(of(light(are(best(for(photosynthesis?( *' Look at action spectra! So VIOLET-BLUE (around 430) and RED (680) ( How(do(the(accessory(pigments((chlorophyll(b(and(carotenoids)(contribute(to((photosynthesis?( ** - These pigments absorb light at slightly different wavelengths and broaden the spectrum of colors that are useful for photosynthesis Carotenoids(may(also(provide(photoprotecBon:((( - Aborb and dissipate excessive light energy that could damage chlorophyll •  Prevent*excess*light*energy*from*interac4ng*with*oxygen*and*forming*oxida4ve*molecules* that*are*dangerous*to*cells* In(animals:( •  The*macula*of*the*human*eye*contains*carotenoids** •  These*accessory*pigments*also*func4on*in*photoprotec4on** •  Carotenoids*are*found*in*health*food*products*as*phytochemicals*that* have*an4oxidant*proper4es* •  Plants*can*produce*all*the*an4oxidants*that*they*require* Yellow*xanthophyll* carotenoids* … •  ** but WE as HUMANS ha...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online