Where does the light independent reaction occur
The stroma
What are the products of the Calvin cycle
Glucose
What do TP or GP combine with (from soil) and what does it produce
- itself, produces glucose (after 6 turns)
- nitrate or ammonium ions, produces amino acids
What 3 things (from soil) does TP combine with and what does it produce
- phosphate ions, produces nucleotides
- glycerol and fatty acids, produces phospholipids
- magnesium, produces chlorophyll
Explain how carbon dioxide is used in the production of glycerate-3-phosphate
- CO2 is fixed with RuBP
- into and unstable 6Carbon compound
- Catalysed by RuBisCO
- Compound breaks down into 2 glycerate-3-phosphate molecules
Why are only some of the triose phosphate produced by the Calvin cycle used to produced hexose phosphate
Some is needed to regenerate more RuBP
Why is the light independent stage of photosynthesis required for cellular respiration to continue
Produces glucose
State how the process of photosynthesis reduces co2 levels
Light independent- Calvin cycle
RuBP is fixed by carbon dioxide forming a 6c unstable compound
Catalysed by RuBisCO
How many genes code for the polypeptides found in a RuBisCO molecule
2
Name the 2 substrates that form an enzyme substrate complex to form RuBisCO
RUBP
CO2
What is the first 3c phosphorylated SUGAR produced by the Calvin cycle
Triose phosphate
One organic molecule formed from the product of the Calvin cycle with the addition of nitrogen and phosphorus
Nucleotide
One organic molecule formed from the product of the Calvin cycle with the addition of nitrogen and sulphur
Amino acid
How is glycerine phosphate reduced to triose phosphate
Addition of H2 from reduced NADP requires energy from ATP
What is NADPH required for in the Calvin cycle
Regeneration of RuBP
To reduce GP to TP
Why is atp required for Calvin cycle
To reduce GP to TP
To donate a p group to regenerate RuBP
State the meaning of the word fixed
Conversion from an inorganic into an organic compound
