To gain a stronghold in biology, students must understand the difference between prokaryotic cells and eukaryotic cells. Furthermore, all the living organisms belong to one of the cell groups- prokaryotes vs eukaryotes. Moreover, cellular structure is the main factor in determining which group an organism belongs to.
Definition of Prokaryotic Cells
One way of certainly ascertaining the difference between prokaryotic cells and eukaryotic cells is because of their definitions. Prokaryotic cells are defined as those that do not possess a true nucleus or membrane-bound organelles. Furthermore, organisms within the domains of Archaea and Bacteria involve prokaryotic cells.
Definitions of Eukaryotic Cells
Eukaryotic cells refer to those cells that contain a nucleus and organelles, and their enclosing is due to a plasma membrane. Furthermore, organisms that have eukaryotic cells include fungi, animals, plants, and protozoa. Also, the grouping of these organisms takes place into the biological domain Eukaryota.
Difference between Prokaryotic Cells and Eukaryotic Cells
Important difference between prokaryotic cells and eukaryotic cells
|Parameter||Prokaryotic Cells||Eukaryotic Cells|
|Nucleus||There is the absence of a well-defined nucleus. Furthermore, there is the presence of nucleoid here which is an open region that contains DNA||There is certainly the presence of well-defined nucleus here. Furthermore, a nuclear membrane encloses it|
|Cell size||The cell size is smaller(0.1-5 μm)||The cell size is larger(10-100 μm) in contrast|
|Cell structure||Unicellular structure||Most eukaryotic cells are multicellular. However, some are unicellular|
|DNA Form||They have a circular DNA form||They have a linear DNA form|
|Complexity||Simpler||More complex in comparison to prokaryotic cells|
|Cell wall||The cell wall is present here. Furthermore, it comprises of mucopeptide or peptidoglycan||Usually, there is an absence of cell wall here. However, in case it is present, it comprises cellulose|
|Shape of DNA||Double-stranded circular DNA||Double-stranded Linear DNA|
|Mode of Reproduction||Asexual||Sexual reproduction is certainly the most common here|
|Peroxisomes and Lysosomes||Absent||Present|
|Cell Division||Binary fission, transduction, conjugation, and transformation||Mitosis|
|Translation and Transcription||It occurs together||Translation happens in the cytosol. Moreover, transcription happens in the nucleus|
|Number of chromosomes||Only one||More than one|
|Replication||These cells have a single origin of replication||These cells have multiple origins of replication|
|Organelles||The organelles in prokaryotic cells are not membrane-bound||The organelles in eukaryotic cells are certainly specific in function. Most noteworthy, they are membrane-bound|
|Examples||Archea and bacteria||Fungi, protists, animals, and plants|
More Details About Prokaryotic Cells
Going into the details of prokaryotic cells will bring out the difference between prokaryotic cells and eukaryotic cells in a better way. Furthermore, organisms possessing prokaryotic cells are unicellular in nature. Moreover, a significant difference between prokaryotic cells and eukaryotic cells is that the latter are more complex.
Furthermore, a prokaryotic cell contains only a single membrane and it surrounds the cell as an outer membrane. In contrast, eukaryotic cells have a nuclear membrane that surrounds a nucleus.
More Details About Eukaryotic Cells
Eukaryotic cells contain a variety of structures that are known as organelles. Furthermore, organelles perform multiple functions within the cell. Moreover, examples of organelles are ribosomes, the endoplasmic reticulum, and mitochondria.
Eukaryotic cells have a true nucleus and this is surrounded by a nucleus envelope. Moreover, it has the genetic material DNA. Furthermore, all of the organelles receive physical support and stabilization through the cytoskeleton, which also facilitates sending of signals from one cell part to another.
In eukaryotic cells, the cytoskeleton comprises mainly of three types of filaments: microfilaments, microtubules, and intermediate filaments. Furthermore, cytosol is a gel-like substance that envelopes every organelle in the cell.
FAQs About Prokaryotic Cells and Eukaryotic Cells
Question 1: Explain about the main difference between prokaryotes and eukaryotes?
Answer 1: The main difference between prokaryotes and eukaryotes is with regards to a membrane-bound nucleus. Most noteworthy, eukaryotes have a membrane-bound nucleus while the prokaryotes are without it.
Question 2: What is the DNA form in prokaryotic cells and eukaryotic cells?
Answer 2: The DNA form of prokaryotic cells is of a circular form. In contrast, the DNA form pf eukaryotic cells is of a linear form. This is also a difference between prokaryotic cells and eukaryotic cells.