whic cell in not prokaryotic cell
Answers
Explanation:
The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.
Answer:
Prokaryote definition
Prokaryotes are unicellular organisms that lack membrane-bound structures, the most noteworthy of which is the nucleus. Prokaryotic cells tend to be small, simple cells, measuring around 0.1-5 μm in diameter.
The key structures present in a prokaryote cell
While prokaryotic cells do not have membrane-bound structures, they do have distinct cellular regions. In prokaryotic cells, DNA bundles together in a region called the nucleoid.
Prokaryotic cell features
Here is a breakdown of what you might find in a prokaryotic bacterial cell.
Nucleoid: A central region of the cell that contains its DNA.
Ribosome: Ribosomes are responsible for protein synthesis.
Cell wall: The cell wall provides structure and protection from the outside environment. Most bacteria have a rigid cell wall made from carbohydrates and proteins called peptidoglycans.
Cell membrane: Every prokaryote has a cell membrane, also known as the plasma membrane, that separates the cell from the outside environment.
Capsule: Some bacteria have a layer of carbohydrates that surrounds the cell wall called the capsule. The capsule helps the bacterium attach to surfaces.
Fimbriae: Fimbriae are thin, hair-like structures that help with cellular attachment.
Pili: Pili are rod-shaped structures involved in multiple roles, including attachment and DNA transfer.
Flagella: Flagella are thin, tail-like structures that assist in movement.
Examples of prokaryotes
Bacteria and archaea are the two types of prokaryotes.
Do prokaryotes have mitochondria?
No, prokaryotes do not have mitochondria. Mitochondria are only found in eukaryotic cells. This is also true of other membrane-bound structures like the nucleus and the Golgi apparatus (more on these later).
One theory for eukaryotic evolution hypothesizes that mitochondria were first prokaryotic cells that lived inside other cells. Over time, evolution led to these separate organisms functioning as a single organism in the form of a eukaryote.
