Prokaryotic and eukaryotic cells have found in either type of cell?
A. Golgi bodies B. nuclei C. mitochondria D. cell walls
The correct answer and explanation is:
The correct answer is D. cell walls.
Explanation:
Both prokaryotic and eukaryotic cells can have cell walls, but the structure and composition vary between the two types of cells.
Prokaryotic cells are simpler and do not have membrane-bound organelles. They are typically unicellular organisms like bacteria and archaea. Despite the absence of structures like mitochondria, Golgi bodies, and nuclei, prokaryotes often possess a cell wall. The primary role of the cell wall in prokaryotes is to provide structural support and shape, and it also offers protection from external environmental factors. In bacteria, the cell wall is mainly composed of peptidoglycan, while in archaea, it is made up of different materials, such as pseudopeptidoglycan or proteins.
Eukaryotic cells, found in organisms like plants, animals, fungi, and protists, are more complex and contain membrane-bound organelles such as the nucleus, mitochondria, and Golgi bodies. In plant cells, fungi, and some protists, the cell wall is present, but it differs from prokaryotic cell walls. In plants, the cell wall is primarily made of cellulose, which provides rigidity and strength to the cell. In fungi, the cell wall is made of chitin, and in some protists, it may be composed of other materials like silica or calcium carbonate. Animal cells, however, do not have a cell wall; instead, they rely on a flexible plasma membrane to maintain their shape and function.
In summary, while prokaryotic cells always have a cell wall, eukaryotic cells may or may not possess one, depending on the organism. Cell walls are not found in animal cells, but are common in plant cells, fungi, and some protists.