Describe briefly what was demonstrated in the reaction named after its discoverer Robin Hill?

Explanation

**Step-by-Step Solution:**

1. **Introduction to Robin Hill's Reaction**: The reaction named after Robin Hill was proposed in 1937 and is significant in understanding photosynthesis, particularly the light-dependent reactions.

2. **Experimental Setup**: In the experiment, chloroplasts were extracted from the plant Stellaria. These chloroplasts were then grown in vitro, meaning they were cultivated outside of the plant in a controlled environment.

3. **Light Source**: The in vitro experiment utilized blue light to stimulate the chloroplasts, mimicking the natural conditions under which photosynthesis occurs in sunlight.

...