Biology
News feature article on the Orgin of Eukaryotes Cells
- Prokaryotes Vs Eukaryotes
While eukaryotic cells and prokaryotic cells have some characteristics in common, they diverged from their common ancestor billions of years ago, thus accounting for significant differences in overall structure and function. Here we will go over them....
- Eukaryote Transcription Vs. Prokaryote Transcription
Different Types of Transcription? Eukaryotes and Prokaryotes are different in so many ways but also the same. I explained a lot of the same and different ways in the "Eukaryotic and Prokaryotic Cells" post. One thing I did not describe was the transcription...
- Prokaryotes Versus Eukaryotes
Cell Webquest ? Ms. Carter Prokaryotes versus Eukaryotes California Standard: Cell Biology 1. c Cell Biology: The fundamental life processes of plants and animals depend on a variety of chemical reactions that occur in specialized areas of the organism?s...
- Eukaryote Vs Prokaryote
Biology EssayMichael McDonald11/17/14Period 7 Cells are categorized into two groups, Prokaryotic and Eukaryotic. The two cells are similar in some ways , but also they are different in others. One way they are similar is that they both have DNA which...
- Prokaryotic Cells Vs. Eukaryotic Cells
Prokaryotic Cells Prokaryote is a cell or an organism that lacks a nucleus and other membrane enclosed organelles and most of their DNA is a single circular molecule. All bacteria are prokaryotic cells. The word "prokaryote" means "before the nucleus"...
Biology
Orgin of Eukaryotes
BREAKING NEWS: We have discovered the ancestors of the eukaryote cells. The Eukaryotic cells wasn't the earliest form of cell, but originated from it's ancestor the prokaryotic cells. There are distinct differences, yet some similarities. Before the eukaryotic cell originated, the prokaryotic cell was present. Prokaryotes are single-called organism and the earliest form of cell. They also don't have a real nucleus, so DNA is stored in a part of the cytoplasm called the nucleiod. Prokaryotes are mostly consisted of different kinds of bacteria.
A eukaryotic cell, however, is more complicated than it's ancestor. The structure is more complex including more structures that the prokaryote cell doesn't have. A eukaryote does contain a true nucleus unlike the prokaryote which doesn't have a real nucleus. Most cells in animals and plants consist of eukaryote cells.
The Endosymbiosis theory is what explains how the eukaryote cell actually evolved! According to the theory prokaryote cells can engulf other prokaryote cells. Instead it engulfed a aerobic bacteria, but it wasn't digested but remained in the cell. The bacterium eventually created a mithochondria. Some even engulfed some blue-algal cells creating chloroplasts. This theory is believed because of the many similarities between the prokaryote and eukaryote.
There is a lot of evidence that eukaryote cells evolved from prokaryote. First, both cells use DNA and RNA as their genetic information. Also, they both use the same twenty amino acids. Both cells also have ribosomes to store some proteins and RNA. They also both have the organelle, a cell membrane.
We interviewed scientists and they assured us that the eukaryotes are monophyletic, or descendants of a single common ancestor. Basically, the prokaryotes are the eukaryotes single common ancestor. There is evidence that proves the statement. They both have microtubules, such as a cytoskeleton or a flagella. They also both have DNA in their chromosomes. Also, they both have membrane-bound organelles.
Although their isn't fossil evidence of the two cells, scientists have found a different way of studying the two types of cells to pove the eukaryote originated from prokaryote. Scientists study the biology of modern day organisms to conclude their hypotheses. The only big difference is that prokaryote has a cell wall, and only plant eukaryote cells have a cell wall. Not having a cell wall allows the cell to change its shape.
Citation:
"Eukaryotes." Eukaryotes. N.p., n.d. Web. 20 Mar. 2014
- Prokaryotes Vs Eukaryotes
While eukaryotic cells and prokaryotic cells have some characteristics in common, they diverged from their common ancestor billions of years ago, thus accounting for significant differences in overall structure and function. Here we will go over them....
- Eukaryote Transcription Vs. Prokaryote Transcription
Different Types of Transcription? Eukaryotes and Prokaryotes are different in so many ways but also the same. I explained a lot of the same and different ways in the "Eukaryotic and Prokaryotic Cells" post. One thing I did not describe was the transcription...
- Prokaryotes Versus Eukaryotes
Cell Webquest ? Ms. Carter Prokaryotes versus Eukaryotes California Standard: Cell Biology 1. c Cell Biology: The fundamental life processes of plants and animals depend on a variety of chemical reactions that occur in specialized areas of the organism?s...
- Eukaryote Vs Prokaryote
Biology EssayMichael McDonald11/17/14Period 7 Cells are categorized into two groups, Prokaryotic and Eukaryotic. The two cells are similar in some ways , but also they are different in others. One way they are similar is that they both have DNA which...
- Prokaryotic Cells Vs. Eukaryotic Cells
Prokaryotic Cells Prokaryote is a cell or an organism that lacks a nucleus and other membrane enclosed organelles and most of their DNA is a single circular molecule. All bacteria are prokaryotic cells. The word "prokaryote" means "before the nucleus"...