General
STRUCTURE
LIGHT STAGE
PHOSPHORYLATION 1
CALVIN CYCLE
100
convert solar energy into chemical energy by ‘fixing’ carbon dioxide
Autotrophs
100
stacks of thylakoids
granum
100
•unidirectional flow of electrons from PSII to PSI and NADP+ is reduced to NADPH
Non-cyclic photophosphorylation
100
•Only PSI (P700) is involved
Cyclic Photophosphorylation
100
how many co2 molecules are inputted in the calvin cycle
3
200
two stages of photosynthesis
light dependent and light independent
200
site of light dependent reaction
thylakoid
200
catalyses the transfer of electrons from ferredoxin (Fd) to NADP+.
NADP+ reductase
200
Product of cyclic photophosphorylation
ATP
200
what are the limiting factors of photosynthesis
temperature, co2 concentration, light , water
300
traps radiant energy of sunlight
chlorophyll
300
contains enzymes for calvin cycle
stroma
300
components of the first electron transport chain
plastiquone, cytochrome complex, plastocyanin
300
Component of electron transport chain used in cyclic photophosphorylation
ferredoxin, cytochrome complex, plastocyanin
300
what happens in the carbon fixation phase of calvin cycle
Co2 binds to Rubp sugar with the help rubisco
400
product of the light stage that enters dark stage
Hydrogen
400
collection of 200-300 molecules engaging in the light reaction
photosystem
400
The electron from ps 2 is excited by photons in ps1, it then moves down its transport chain through protein___________________
ferodoxine
400
products, last electron acceptor and electron source of the non cyclic photophosphorylation
atp,nadph, oxygen,
nadp
water
400
two 3 carbon molecules produced in the first stage of calvin cycle
3 phosphoglycerate PGA
500
chlorophyll containing plastids of Eukaryotes
chloroplasts
500
Photosystem activated by light of wavelength up to 700 nm
photosystem 1
500
Mechanism begins with photsystem 2- purple is reaction centre, in reaction centre is p680
Photon from sunlight enters the photosystem and it hits the light harvesting complexes and bounces like a wave till it gets to p680
P680 needs an electron and it gets that electron from water, the photon excites the electron and it moves up in energy state into electron acceptor
Moves through the electron transport chain through proteins Plastiquone (Pq) (an electron carrier), a cytochrome complex, a protein – plastocyanin (Pc) until it gets to photosystem 1
As it travels the energy is lowered and this get absorbed by atp
500
product, electron source and last electron acceptor in cyclic phosphorylation
Atp
photosytem1
photosytem 1
500
During the calvin cycle what is used to build glucose molecules
triose phosphate