Question

Do prokaryotes need water?

Answer 1

- A cellular organism lacking an envelope-enclosed nucleus is known as a prokaryote. Prokaryotes were categorised within the empire Prokaryota in the two-empire scheme established by Édouard Chatton.
- Prokaryotic cells lack a nucleus that is attached to the membrane, and their DNA is circular and naked.

Complete answer:
- Prokaryotes are well-equipped to survive in a wide variety of nutrients and environments. Prokaryotes require an energy source, a carbon source, and some additional nutrients to survive. These cells are a well-organized set of macromolecules and water.
- The macronutrients (carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulphur) that make up essential biomolecules including proteins and nucleic acids are the main components of the organic compounds in a prokaryotic cell.
- The majority of nitrogen in nature is in the form of atmospheric nitrogen (N2) or another inorganic form. Only certain species, known as nitrogen-fixing organisms, can transform diatomic (N2) nitrogen into an organic form. Many organic compounds and water contain both hydrogen and oxygen.
- These elements are essential for the structure and function of the prokaryotic cell, even though they are only necessary for small amounts.
- Prokaryotes often need a small amount of different metallic elements in addition to these macronutrients. Micronutrients or trace elements are the names for these compounds. Iron is needed for the role of cytochromes involved in electron transport reactions, for example.
- Prokaryotes can assemble macromolecules from smaller molecules using a variety of energy sources. Phototrophs (or phototrophic organisms) depend on sunlight for energy. Chemotrophs (or chemosynthetic organisms) depend on chemical compounds for energy.

Thus from the above discussion it is clear that the prokaryotes use water to obtain come elements and compounds for their survival.

Note:
- Prokaryotes lack mitochondria and other membrane-bound organelles found in eukaryotes, and it was once believed that prokaryotes lacked cellular compartments, leaving all cellular components inside the cytoplasm unenclosed except for an outer cell membrane.
- Prokaryotic cells are of microscopic size, an average bacterial cell is around 8 micrometres long.
- While prokaryotic cells have a cell wall, it is not composed of cellulose and plasmids are structures that carry extra DNA in these cells.