Photosynthesis Flashcards
What name is given to the first stage of photosynthesis?
light reaction or photolysis
Name the substance found in plants that traps light energy?
chlorophyll
Where is chlorophyll found in plant cells?
Chloroplasts
What is the light energy converted into during the 1st stage of photosynthesis?
chemical energy (ATP)
What 2 substances is water split into during the 1st stage of photosynthesis?
hydrogen and oxygen
What happens to the oxygen produced from the splitting of water during the 1st stage of photosynthesis?
waste product - diffuses out of the cell, and out of the stomata
Name the 2nd stage of photosynthesis.
carbon fixation
What control the chemical reactions of photosynthesis?
enzymes
Name the 2 things produced by the 1st stage of photosynthesis that are required in the 2nd stage.
hydrogen and ATP
What 3 things are required in the 2nd stage of photosynthesis?
hydrogen, ATP and carbon dioxide
What is the useful product of photosynthesis for plants?
glucose
What are 3 possible uses of the glucose produced in photosynthesis?
- respiration for energy 2. stored as starch 3. converted to cellulose to make cell walls
Name the 3 limiting factors of photosynthesis.
light intensity, temperature and carbon dioxide concentration
When looking at a graph of limiting factors, what is the rule for identifying what the limiting factor is?
If you increase the factor and IT DOES increase the rate of photosynthesis IT IS the limiting factor
What is the ‘waste product’ of photosynthesis?
Oxygen
