a level biology photsynthesis

what are the two stages of photsyntghesis

1. light dependent reactions

2. light independent reactions

what stage comes first

light dependent reactions

where do light depenedent reactions occur

in the grana or thylakoid membrane

where do light independent reactions occur

in the stroma

what is a limiting factor

a factor that reduces the rate of a process

what 3 limiting factors for photsynthgesis

1. light intensity

2. CO2 level

3. temperature

what is optimium co2 level

0.1%

what does co2 level affect in photosynthesis

enzyme activity

what can farmers do to reduce light intensity facotr

artifical lighting

what can farmers do to reduce co2 level being limiting factor

burning fules such as paraffin burners

what can farmers to increase temperature

use electrical heating

how do protons move into the innermembrane thylakoid space

by active transport through the carrier protein proton pump

how do protons move back to the stroma

by facilitated diffusion through the channel protein ATP synthase