Which of the following statements is true about prokaryotes?a)Prokaryo...
Prokaryotes are unicellular organisms that lack membrane-bound organelles such as a nucleus, mitochondria, or endoplasmic reticulum. Instead, their genetic material is present in a single circular chromosome located in the nucleoid region.
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Which of the following statements is true about prokaryotes?a)Prokaryo...
Prokaryotes and Membrane-bound Organelles
Prokaryotes are unicellular organisms that lack a true nucleus and membrane-bound organelles. This means that their genetic material is not enclosed within a nucleus but rather is found in a region of the cell called the nucleoid.
Characteristics of Prokaryotes
Prokaryotes are known for their simple cell structure, which includes a cell membrane, cell wall, cytoplasm, ribosomes, and a nucleoid region. They also typically have a flagellum for movement and pili for attachment to surfaces.
Differences Between Prokaryotes and Eukaryotes
One of the key differences between prokaryotes and eukaryotes is the presence of membrane-bound organelles. Eukaryotic cells, which include plants, animals, fungi, and protists, have membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, and Golgi apparatus. Prokaryotic cells lack these membrane-bound structures.
Cell Division in Prokaryotes
Prokaryotes reproduce through a process called binary fission, where a single cell divides into two identical daughter cells. This process does not involve mitosis, as seen in eukaryotic cells, but rather a simpler form of cell division.
In conclusion, prokaryotes lack membrane-bound organelles, which is a defining characteristic that distinguishes them from eukaryotic cells. This feature contributes to their simple cell structure and functions.