How Do Eukaryotes Evolve Long Ago?

When life arose on Earth about 4 billion years ago, the first types of cells to evolve were prokaryotic cells. For approximately 2 billion years, prokaryotic-type cells were the only form of life on Earth. The oldest known sedimentary rocks found in Greenland are about 3.8 billion years old. The oldest known fossils are prokaryotic cells, 3.5 billion years in age, found in Western Australia and South Africa. The nature of these fossils, and the chemical composition of the rocks in which they are found, indicates that these first cells made use of simple chemical reactions to produce energy for their metabolism and growth. Eukaryotic cells evolved into being between 1.5 and 2 billion years ago. Eukaryotic cells appear to have arisen from prokaryotic cells, specifically out of the archaea. Indeed, there are many similarities in molecular biology of contemporary archaea and eukaryotes. However, the origin of the eukaryotic organelles, specifically chloroplasts and mitochondria, is explained by evolutionary associations between primitive nucleated cells and certain respiratory and photosynthetic bacteria, which led to the development of these organelles and the associated explosion of eukaryotic diversity. Today Prokaryotes

There are two main types of cells in the world. The simplest cells such as bacteria are known as Prokaryotic cells, and human cells are known as Eukaryotic cells. The main difference between each of these cells is that a eukaryotic cell has a nucleus and a membrane bound section in which the cell holds the main DNA which are building blocks of life.

“Eukaryotic cells are complex and include all animal and plant cells. Prokaryotic cells are smaller and simpler, e.g. Bacteria” - (AQA 2008)

Now that we understand the properties of life and the composition of cells, we can focus on the architecture or formation in terms of basic anatomy and physiology as our second area of exploration. The two types of cells (prokaryotic and eukaryotic) defined before have a few common things such as Plasma membrane (similar to animal cells); Cell wall (similar to plant cells); and Ribosomes, the

eukaryotic cells cell type is usually multicellular while prokaryotic cell is usually unicellular, eukaryotic cell true membrane bound nucleus is present, prokaryotic cell's true bound nucleus is absent. examples of a eukaryotic cell are plants and animals. prokaryotic cells's examples are bacteria and archaea. eukaryotic cells genetic recombination is meiosis & fusion of gametes, prokaryotic cells genetic recombination is partial, undirectional transfers DNA, eukaryotic cells lysosomes and peroxisomes are present while prokaryotic cell lysosomes and peroxisomes are absent, eukaryotic cells microtubules are present, prokaryotic cells microtubules are absent, eukaryotic cell endoplasmic reticulum is present, prokaryotic cell endoplasmic reticulum is absent and eukaryotic cells cytoskeleton is present while prokaryotic cells cytoskeleton may be

I believe eukaryotes are more advanced than prokaryotes. The reasons I see eukaryote more advanced is because of many reasons one of those reasons is eukaryotes can be a single or multi- celled heterotroph or autotroph. While prokaryotes are only single-celled heterotrophic organisms. Also, eukaryotes have so much going on inside of them with so many different components. Prokaryotes have some going on inside of the cell not nearly as much as eukaryote do. Eukaryotes can reproduce offspring that is not identical to the parent and prokaryotes only clone themselves to reproduce. Theses are just some of the reasons why eukaryotes are

The cell is the basic unit of life. Two groups are formed between living organisms, and those two groups are the eukaryotes and prokaryotes. Even though all organisms have the same characteristics of life, there are differences and similarities that are seen at the cellular level between prokaryotes and eukaryotes. Prokaryotes came into play around 3.5 billion years ago and then the eukaryotes evolved around 1.5 billion years ago.

In the beginning, on planet Earth, there were single cells (unicellular organism). Millions of years later the Earth was inhabited by plants, animals, fungi, and algae all multicellular organisms (multiple cells that work together). These new multicellular organisms operate cooperatively to consume energy, survive, and reproduce all astonishing evolution achievements since unicellular organisms. But, How did multicellularity evolve and arise long ago? The origins of multicellularity are one of the most interesting topics and evolutionary innovations in biology. Based on scientific research three chosen hypotheses have been established to solve this question.

“All wisdom is rooted in learning to call things by the right name. When things are properly identified, they fall into natural categories and understanding becomes orderly” –Confucius. A key aspect in the diverse field of biology has always been the classification of organisms. Even before Darwin postulated his famous theory of evolution and the tree of life, systems existed to name the inhabitants of the natural world and organise them into distinct categories. As our understanding of the world changes and we delve deeper and deeper into life on a molecular level, it becomes necessary to update our techniques and question our previously held beliefs, but often these new ideas are met with resistance and controversy. One such idea is the abolishment of the prokaryote/eukaryote dichotomy, first formally proposed in 1990 by Carl Woese and colleagues (Woese, Kandler and Wheelis, 1990) and yet still unresolved in the present day.

Prokaryote cell is a single celled organism that does not have a membrane bound nucleus or membrane-bound organelle. All Prokaryotic cells contain large quantities of generic material in the form of DNA is found in the

Cells are the basic components of all living things. Both the prokaryotic and the eukaryotic cell contain a plasma membrane, a cytoplasm, DNA, and ribosomes. One of the main differences between a eukaryotic and prokaryotic cell is that a prokaryotic cell lacks a nucleus, (pro means before and kary means nucleus) and it also lacks membrane-bound organelles. Instead of having a nucleus, prokaryotes have a single chromosome. This chromosome is often referred to as a gonophore. Due to prokaryotes being single celled, the inside of a prokaryotic cell is full of open space, meaning they do not contain any membrane walls. The prokaryotic cell makes up all bacteria and bacteria-like archaea (germs).

If you examine Prokaryotes and Eukaryotes side by side, you will spot a number of disparities. To begin with, Prokaryotic cells are a lot smaller than Eukaryotic cells and have a simpler structure. However, this simple structure is actually an advantage for their lifestyle because it allows them to reproduce quickly

In the beginning, there were single cells (Unicellular organism). Presently, millions of years later, most plants, animals, fungi, and algae are composed of multiple cells that work collaboratively as a single being. Despite the various methods these organisms achieved multicellularity, their conglomeration of cells operate cooperatively to consume energy, survive, and reproduce. But how did multicellularity evolve? Once or multiple times? How did a solo cell transition to associating and cooperating with other cells? The origins of multicellularity are one of the most interesting topics and evolutionary innovations in biology. Currently, there are three main hypotheses for how multicellularity had arisen. First ‘’Symbiosis hypothesis,’’ this

Prokaryotes have a cell wall but are only made from cellulose. Prokaryotes have no nucleus. Prokaryotic cells are found in single-celled organisms such as bacteria. The DNA in a prokaryotic cell is in the cytoplasm rather than enclosed thin a nuclear membrane. The two organisms from prokaryotes are bacteria and blue green algae

An prokaryotic and eukaryotic cell are different in many ways. A prokaryotic cell means a microscopic single celled organism that has neither a distinct nucleus with a membrane,and mitochondria,or an membrane bound organelle. The prokaryotic cell is like an apartment, it supports the person with living space, but is small and simple at the same time. An eukaryotic cell is any organism whoose cell contains an nucleus, and other membrane bond and organells. An example of an eukaryotic cell is an mansion.