The sun beams down upon the trees
Bright light shining over its leaves.
Chlorophyll absorbs the light to make ATP,
The source of the trees’ energy.
But don’t forget it makes NADPH!
That is important for electrons to make
A certain break down to occur.
Light reactions--
Water splits to make electrons
And gives off oxygen to breathe.
ATP and NAPDH move to the stroma,
A thick, flowing fluid inside the chloroplast.
Here, the Calvin cycle begins
Setting all things within
To start creating sugar.
The ATP allows the reaction to go
While NADPH break apart CO2.
This produces yummy sugar to eat,
But the sugar is for the tree to feed.