Climate change And Photosynthesis

Question 1

Sucrose

Answer 1

Stops osmotic loss of water from chloroplasts

Question 2

Deforestation needed to clear spaces to produce biofuels. Discuss why production of biofuels at not be carbon neutral

Answer 2

More CO2 in atmosphere
Forests are carbon sinks
Net increase in CO2 in atmosphere
Less carbon dioxide removed by photosynthesis
Burning trees produce carbon dioxide
Burning fossil fuels produce carbon dioxide
Increased decomposition produces carbon dioxide

Question 3

Second generation biofuel

Answer 3

Do not affect food supply
Cheaper
Made using non edible components
People becoming more responsible for their environment

Question 4

Role of each photosystem

Answer 4

Electron transport
Movement of hydrogen ions across thylakoid membrane
ATP production/photophosphorlyatikn

Question 5

Role of RUBISCO

Answer 5

Enzyme
In Calvin cycle
Involved in carbon fixation
To form GP
This is converted to GALP

Question 6

Explain importance of rubisco in productivity of an ecosystem

Answer 6

Fixes inorganic carbon
Allowing formation of organic molecules
Allow transfer of energy to next trophic level

Question 7

Ecosystem

Answer 7

Organisms and abiotic factors