14 photosynthesis Flashcards
A process wherein chemical energy (from the light reactions – ATP and NADPH) and CO2 (from the atmosphere) are used to produce organic compounds (like glucose).
Calvin cycle
This is the process of assimilating carbon from a non-organic compound (CO2) and incorporating it into an organic compound (carbohydrates).
Carbon Fixation
In process of __________, 3 molecules of CO2 (from the atmosphere) are joined to 3 molecules of RuBP (a 5-carbon sugar) by Rubisco (an enzyme also known as RuBP carboxylase)
carbon fixation
3- Phosphoglycerate Molecules
(3-PGA) is the product in ?
carbon fixation
In this phase the 3-PGA molecules created through carbon fixation are converted into molecules of simple sugar – glucose.
Reduction
The 6 – carbon molecules are reduced by gaining electrons from NADPH.
Reduction
Molecular rearranging with the use of ATP. The three 6-carbon molecules will split in half, forming six 3-carbon molecules.
Reduction
One of these “extra” 3-carbon G3P/PGAL molecules will exit the cycle and be used to form ½ a glucose molecule.
Reduction
Once the Calvin Cycle “turns” twice (well, actually 6 times), those 2 molecules of G3P (a 3-carbon carbohydrate) will combine to form 1 molecule of glucose (a 6-carbon carbohydrate molecule) OR another organic compound.
reduction
ATP and NADPH is used in what stage?
reduction
glucose is the product in?
reduction
It is used to join the 3 molecules of CO2 to 3 molecules of RuBP
rubisco
Since this is the Calvin Cycle, we must end up back at the beginning
Regeneration of RuBP
The remaining 5 G3P molecules (3-carbons each!) get rearranged (using ATP) to form 3 RuBP molecules (5-carbons each).
Regeneration of RuBP
how do regeneration arrange g3p molecules?
using ATP
where does G3P come from?
3 turns of calvin cycle
TRUE OR FALSE?
Calvin Cycle occurs in the stroma inside the chloroplasts (inside the cell.)
TRUE
TRUE OR FALSE?
In the Calvin Cycle, energy and electrons from the Light Reactions (in the form of ATP and NADPH) and carbon dioxide from the atmosphere are used to produce organic compounds.
TRUE
Carbon dioxide, ATP, and NADPH are required ________.
reactants
Glucose and G3P are produced ________.
products
