Prokaryotic And Eukaryotic Cells– You need to know What is the difference between prokaryotic cells and eukaryotic cells? Then, we have got all the information you need to know about. Prokaryotic cells are distinguished from eukaryotes by their structure. While eukaryote cells have complex structures, formed by internal membranes, cytoskeleton, and a nucleus, the prokaryotic cells contain no nuclei and other membrane-bound organelles.
PROKARYOTIC AND EUKARYOTIC CELLS- ALL YOU NEED TO KNOW
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Prokaryotic cells were the only life form on Earth for millions of years, until the most complex eukaryotic cells emerged through the process of evolution.
- Meaning of eukaryotes and prokaryotes
Prokaryotic, or prokaryotic, cells are organisms without a cell nucleus or any other membrane-bound organelle. Its genetic material is dispersed in the cytoplasm, and most prokaryotes are unicellular, although some prokaryotes are multicellular.
Eukaryotic cells, or eukaryotes, are organized into complex structures by internal membranes and a cytoskeleton. The most characteristic structure of the membrane is the nucleus.
Structure and functions of prokaryotic cells
Prokaryotic cells are less complex than eukaryotic cells. They do not have a true nucleus, because the DNA is not contained inside a membrane or separated from the rest of the cell, but dispersed in a region of the cytoplasm called the nucleoid.
The following structures and organelles can be found in prokaryotic cells:
Capsule: additional external cover that protects the cell, which prevents dehydration and favors adhesion to surfaces;
Cell wall: an outer covering that protects the bacterial cell and gives its shape;
Cytoplasm: is a substance similar to a gel. Its role is to structure and maintain the shape of the cell;
Plasmid: are double molecules of DNA that store genetic material;
Cell membrane: it is responsible for involving the cytoplasm of the cell and regulates the flow of substances inside and outside it;
Flagellum and cilia: help in the locomotion of the cell;
Ribosome: they are cellular structures responsible for the production of proteins;
Nucleoid: In the cell, the area of the cytoplasm that contains the DNA molecule.
Structure and functions of eukaryotic cells
Nucleus: it is the largest and most visible organelle in a eukaryotic cell. It contains the DNA of the cell;
Endoplasmic reticulum: its function is to produce and send proteins and lipids;
Golgi Complex: is responsible for modifying cellular molecules and sending materials out of the cell. It is also the only organelle that can generate lysosomes;
Lysosomes: play an important role in cell digestion;
Peroxisomes: structures that have enzymes that transform hydrogen atoms into oxygen;
Nucleolus: are located inside the nucleus, where the synthesis of ribosomes happens;
Mitochondria: responsible for releasing energy from glucose molecules and fatty acids;
Vacuoles: structures that store substances related to digestion or cellular nutrition;
Pastures: present only in eukaryotic plant cells. Responsible for photosynthesis and storage of substances. They are of three types: chloroplasts, chromoplasts, and leucoplasts.
Conclusion On Prokaryotic And Eukaryotic Cells
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