Prokaryotic cells are tiny life forms that do not have a nucleus and are simpler in structure. They are very important in nature. Here are some key functions that show how they help the environment:

1. Decomposition:

   • Prokaryotes, especially bacteria, play a big role as decomposers. They break down dead plants and animals, putting nutrients back into the soil and ecosystem. In fact, bacteria can help decompose about 80% of organic waste.

2. Nitrogen Fixation:

   • Some prokaryotes, like Rhizobia, have the ability to change nitrogen from the air into ammonia. This process is really important for plants to grow. Around 50% of the nitrogen found in farm soils comes from this type of microbial nitrogen fixation.

3. Photosynthesis:

   • Cyanobacteria can perform photosynthesis. This means they use sunlight to create energy and produce about 20% of the oxygen we breathe on Earth. Their work is vital for keeping enough oxygen in the atmosphere.

4. Bioremediation:

   • Prokaryotic cells can also help clean up pollution. For example, some bacteria can help break down oil spills and can be effective up to 95% in the best conditions.

5. Food Chains:

   • Prokaryotes are at the base of many food chains. In the ocean, they are primary producers and contribute to 50% of the production of food for other organisms.

In short, prokaryotic cells help recycle nutrients, provide energy, and keep ecosystems stable. This shows just how important they are in our biological world.