The Light Reactions
The light Reactions are called light reactions because
They require light to function
This part of Photosynthesis is sometimes referred to as the Dark Reactions
Calvin Cycle
After light energy is absorbed, electrons travel through a series of molecules in the thylakoid membrane. This is called…
the electron transport chain
The organelle in plant cells where photosynthesis happens
Chloroplast
Molecules that absorb light energy are called
Pigments
Calvin Cycle, also known as the dark reactions occur here
Stroma
When pigments in the Thylakoid membrane loose an electron to the electron transport chain, it is replaced by
splitting a water molecule
Disk shaped structures inside the chloroplast where light energy is captured
Thylakoid
The light reactions happen here
the membrane of the Thylakoid
The final product of the Calvin Cycle is
Glucose
At the end of the electron transport chain, this is created as a form of energy
NADPH
A stack of Thylakoids are referred to as
Grana
The light reactions of photosynthesis supply the Calvin cycle with
ATP & NADPH
In addition to ATP & NADPH The Calvin Cycle uses this to make glucose
CO2
some energy from the electron transport chain is used to pump these into the Thylakoid
hydrogen ions
The fluid outside the Thylakoids but in the chloroplast where the Calvin Cycle takes place
Stroma
The light reactions capture light energy and use it to power this
The Calvin Cycle
The enzyme that attaches CO2 to a 5-carbon molecule
Rubisco
When thylakoids fills up with hydrogen ions, the only way they can escape is through
ATP Synthase
This enzyme spins like a turbine and uses the energy of H+ ions escaping from the thylakoid to attach one Phosphate molecule to ADP
ATP Synthase