Lecture 6- photosynthesis 2

Of proteins that bind special chlorophyll a molecules

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: hyll a molecules as well as primary electron acceptor - photosystems trap photons of light and use the energy to oxidize a reaction centre chlorophyll, with the electron being transferred to the primary electron acceptor 4 Light Harvesting Complex – 300 Chlorophyll a (1 reaction centre chl a) and other accessory pigments (chls, carots, etc..) 1202B • Content varies according to specific organisms BIOLOGY • Antenna Pigments • Reaction Centre Pigments - 2 different photosystems: photosystem I (PSI) and photosystem II (PSII) - specialized chlorophyll a in the reaction centre of photosystem I is called P700 (because its absorption maximum is at a wavelength of 700nm - the reaction centre of photosystem II contains a specialized chlorophyll a P680 (absorb light maximally at 680 nm) – Chlorophyll a P700 and P680 22-Jan-13 Gardiner 13 • In the thylakoid membrane, chlorophyll is organized along with proteins and smaller organic molecules into photosystems. • A photosystem acts like a l...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online