Calvin cycle
How is NADPH made?
*by absorbing light & using that energy to split a water molecule and transfer the electron *NADPH and ATP is made *These are then used in the Calvin cycle to produce sugar.
2 G3P=______glucose
1
CO2 is how many carbons?
1
how many free (extra) G3P do you get from 3 turns of the cycle?
1
3 steps of Calvin cycle
1. carbon fixation 2. reduction 3. regeneration
how many free (extra) G3P would you get from 1 turn of the cycle?
1/3
how many free (extra) G3P do you get from 6 turns of the cycle
2
1 G3P = ____CO2
3
3 CO2= ______ RuBP
3
G3P is how many carbons?
3
how many turns of the cycle are needed to make 1 G3P
3
how many carbons does RuBP have?
5
how many G3P are needed to regenerate 3 RuBP?
5 : so both groups have 15 carbons total
Glucose has how many carbons?
6
how many turns of the cycle are needed to make 1 glucose
6
Which statement correctly describes carbon fixation? (a) the conversion of CO2 into an organic compound (b) the use of RuBisCO to form 3-PGA (c) the production of carbohydrate molecules from G3P (d) the formation of RuBP from G3P molecules (e) the use of ATP and NADPH to reduce CO2
A the conversion of CO2 into an organic compound
what is used to reduce 3 PGA?
ATP and NADPH
Where in eukaryotic cells does the Calvin cycle take place? (a) thylakoid membrane (b) thylakoid lumen (c) chloroplast stroma (d) granum
C chloroplast stroma
Which order of molecular conversions is correct for the Calvin cycle? (a) RuBP + G3P → 3-PGA → sugar (b) RuBisCO → CO2 → RuBP → G3P (c) RuBP + CO2 → [RuBisCO] 3-PGA → G3P (d) CO2 → 3-PGA → RuBP → G3P
C RuBP + CO2 → [RuBisCO] 3-PGA → G3P
carbon input?
CO2
Which molecule must enter the Calvin cycle continually for the light-independent reactions to take place? (a) RuBisCO (b) RuBP (c) 3-PGA (d) CO2
D CO2
ATP and NADPH is used to reduce PGA into ______
GA3P
Output?
GA3P
once co2 is attached to RuBP it will change into?
PGA
carbon fixation
adding co2 to RuBP
How is the ATP made?
by the actions of PSII and electron transport chain
How is NADPH?
due to NADP reductase
Rubisco
enzyme that does carbon fixation
Regenration:
from 5, 3 carbon molecules rearranged to 3, 5 carbon molecules
ATP and NADPH come from where?
light reactions
the cycle spins how many times for each CO2?
once
location?
stroma
RuBP
the molecule that reacts with CO2 during carbon fixation
What is the goal of the Calvin Cycle?
to make G3P(simple car