Now that everyone is partying it up in the stroma, it becomes the perfect location for the next stage of photosynthesis, the light-independent reactions.
Pictures are worth the thousand words that may or may not have just whizzed by your head as you were reading.
In the light-dependent reactions of photosynthesis, the energy from light propels the electrons from a photosystem into a high-energy state.
The ATP and NADPH generated in the earlier light reactions are strong reducing agents (electron donors) and are able to donate the necessary electrons to make carbohydrates.
This process is called photomorphogenesis.
Weed killers called herbicides work by targeting enzymes used in the light reactions of photosynthesis.
We know; it's very annoying.
As you’ve probably gathered by now, the light-dependent reactions fuel the second stage of photosynthesis called the light-independent reactions.
. The chemical reaction by which plants produce complex food molecules (sugars) requires an energy input (i.e., from sunlight) to occur. In this reaction, carbon dioxide and water combine to form carbon-based organic molecules and release oxygen. (Boundary: Further details of the photosynthesis process are not taught at this grade level.)
Light reactions need light to produce organic energy molecules (ATP and NADPH). They are initiated by colored pigments, mainly green colored chlorophylls.