1. Tardigrade
  2. Question
  3. Biology
  4. The first organisms which released oxygen in the environment by its photosynthesis were:

Q. The first organisms which released oxygen in the environment by its photosynthesis were:

 1981  183 NTA AbhyasNTA Abhyas 2020Biological Classification Report Error

Solution:

Cyanobacteria or BGA are first photosynthetic organism on earth which stared production of oxygen in their photosynthesis, thus their photosynthesis is called as oxygenic photosynthesis. They had chlorophyll a similar to higher plants thus were capable of causing photolysis of water to release oxygen.