Photosynthesis, Princ Bio I, Ch 10

Front 1

photosystem

Back 1

composed of antenna complex of hundres of pigment molecules that gather photons and feed caputred light into reaction center
and reaction center consisting of one or more chlorophyll a molecules

Front 2

cyclic photophosphyorylation

Back 2

electron transfer process leading to ATP formation

Front 3

photosystems I and II

Back 3

work dequentially. Photon of light ejects electron from photosystem II; tht electron is used to pump proton across the membranes contributing to chemiosmotically to the production of a molecules of ATP. The ejected electron then passes along a chain of cytochromes to photosystem I. Photosystem I absorbs a photon of light, it ejects an electron used to drive the formation of NADPH.

Front 4

calvin cycle.

Back 4

Carried out in bundle-sheath cells. begins when a carbon atom is added to five carbon molecules. resulting in six carbon molecules and splits into three carbone. Energy from ATP and hydrogens from NADPH are added to the three carbon molecules. Combine to make glucose or are used to make other molecules

3CO2 + 9ATP + 6NADPH + water to glyceraldehyde 3-phosphate + 8Pi + 9 ADP + 6 NADP+

Front 5

carbon fixation

Back 5

CO2 binds to RuBP (energy rich five carbon sugar.

Front 6

photorespiration

Back 6

trying to conserve H2O. Decrease yield in photosynthesis.

Front 7

crassulacean acid pathway

Back 7

initial mode of carbon fixation (CAM). Addopted by many succulent (water-storing) plants such as cacti, pineapples and more.