* Membrane-bound organelles: Eukaryotic cells have a complex internal structure with membrane-bound organelles like the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and vacuoles. These organelles compartmentalize cellular functions and allow for specialized processes to occur efficiently. Prokaryotic cells lack these organelles and have a simpler internal structure.
* Nucleus: Eukaryotic cells have a well-defined nucleus enclosed by a double membrane called the nuclear envelope. The nucleus contains the cell's genetic material (DNA) organized into chromosomes. Prokaryotes lack a true nucleus; their DNA is located in a region called the nucleoid, which is not enclosed by a membrane.
* Cytoskeleton: Eukaryotic cells have a complex cytoskeleton composed of microtubules, microfilaments, and intermediate filaments. The cytoskeleton provides structural support, facilitates cell movement, and helps organize internal components. Prokaryotic cells have a simpler cytoskeletal structure, consisting of proteins like FtsZ, which are involved in cell division.
* Larger size: Eukaryotic cells are generally larger than prokaryotic cells. This is partly due to the presence of membrane-bound organelles, which increase the overall cell volume.
* Linear DNA: Eukaryotic DNA is organized into linear chromosomes and is associated with histone proteins to form chromatin. Prokaryotic DNA is typically circular and is not associated with histones.
* Sexual reproduction: Eukaryotic cells reproduce sexually, involving the fusion of gametes (sperm and egg) to produce offspring with genetic diversity. Prokaryotes reproduce asexually, primarily through binary fission.
* More complex cellular processes: Eukaryotic cells have more complex processes, including a more sophisticated system for protein synthesis and a wider range of metabolic pathways.
These differences reflect the greater complexity of eukaryotic cells, which are capable of carrying out a wider range of functions and adapting to diverse environments.
