Absorption of specific wavelengths

note: previous flashcard set would be C1.3.4 chromatography

what is the primary pigment found in chloroplasts

chlorophylll

what makes plants green

the reflection of the colour green as they don’t use it

what else does the chloroplast have along with the primary pigment

accessory pigments

carotenoids

the most common types of accessory pigments

carotenoids colour and function

orange and yellow, extend the range of light that plants can absorb photosynthesis

what are the two stages of photosynthesis

light dependent and independent reaction

light dependent reaction

photons of light are absorbed by chlorophyll, electons are excited and produce ATP

what happens to the displaced electrons (light dependent reaction)

replaced by splitting water of water to produce oxygen, H⁺ ions and electrons (photolysis)

light independent reaction

ATP from the light dependent and CO₂ are used to produce glucose

absorption spectrum

indicates the wavelength of light abosrbed by each pigment

action spectrum

indicates overall photosynthesis at each wavelength of light