Who proved that the product of photosynthesis - Oxygen - is formed from water?

Who discovered that oxygen is formed during photosynthesis?

Understand the word pair relationship and write the missing word.
Light reaction - grana; Dark reaction - ______

Understand the word pair relationship and write the missing word.
Fruits - fructose; Sugarcane - _____

Which of the pigments given below is the main pigment that performs photosynthesis?

Understand the word pair relationship and write the missing word.
Plants - Oxygen; Animals - ______

Understand the word pair relationship and write the missing word.
Light reaction - Oxygen; Dark reaction - ______

Who described the various stages of the formation of glucose during photosynthesis?

Pick the odd one out.