BIOL227 Exam Questions and Answers With Verified Solutions 2025
photosynthessis does what - ✔✔provides food
provided habitats
Fossil fuel and wood fuel energy was created by photosynthesis
regulates atmosphere
photosynthesis - ✔✔light -> chem energy
carbon dioxide + 2 Water + light energy →carbohydrates + 2 Oxygen + water
light dependent - ✔✔light energy to make NADPH and store energy using ATP
Enzyme RuBisCO transforms CO2 from seawater/atmosphere to create sugars
light independent (dark or calvin cyle) - ✔✔convert NADPH and ATP to reduce CO2 -> NAPH+ and ADP
fixes C and creates sugars
RuBisCO - ✔✔Used to catalyse fixation of CO2 into sugars
pH levels 'graph' - ✔✔pH increase due to carbon dioxide
pH decrease due to respiration
light reaction - ✔✔light absorbed by chlorophyll a, loses an electron
electron moves down electron chain -> gets energy
reduces NADP to NADPH
ATP made!!!!!!!!!!!
What's P680 - ✔✔reaction centre of chlorophyll a, associated with photosystem II
photosynthessis does what - ✔✔provides food
provided habitats
Fossil fuel and wood fuel energy was created by photosynthesis
regulates atmosphere
photosynthesis - ✔✔light -> chem energy
carbon dioxide + 2 Water + light energy →carbohydrates + 2 Oxygen + water
light dependent - ✔✔light energy to make NADPH and store energy using ATP
Enzyme RuBisCO transforms CO2 from seawater/atmosphere to create sugars
light independent (dark or calvin cyle) - ✔✔convert NADPH and ATP to reduce CO2 -> NAPH+ and ADP
fixes C and creates sugars
RuBisCO - ✔✔Used to catalyse fixation of CO2 into sugars
pH levels 'graph' - ✔✔pH increase due to carbon dioxide
pH decrease due to respiration
light reaction - ✔✔light absorbed by chlorophyll a, loses an electron
electron moves down electron chain -> gets energy
reduces NADP to NADPH
ATP made!!!!!!!!!!!
What's P680 - ✔✔reaction centre of chlorophyll a, associated with photosystem II
