What is an example of endosymbiotic theory?

An example of an endosymbiosis is the relationship between Rhizobium and the plant legumes. Rhizobium is the endosymbiont that occur within the roots of legumes. Rhizobium fix atmospheric nitrogen to convert it into a nitrogen form that is ready for use by the legume.

What is the endosymbiotic theory and why is it important?

Endosymbiotic theory is important as it explains the origin of the chroloplast and mitochondria. It also explains the formation of the eukaryotic cells. Explanation; Endosymbiotic theory explains the origins of eukaryotic cell organelles such as mitochondria in animals and fungi and chloroplasts in plants.

Can endosymbionts live on their own?

Many instances of endosymbiosis are obligate; that is, either the endosymbiont or the host cannot survive without the other, such as the gutless marine worms of the genus Riftia, which get nutrition from their endosymbiotic bacteria.

How does a cilium differ from a flagellum?

Cilia and flagella are cell organelles having similar structure but differ in their function and length. Cilia are short in size and are present in large number in the cell. On the other side, flagella are longer in size and are few per cell.

How do mitochondria support the endosymbiotic theory?

There is broad evidence to show that mitochondria and plastids arose from bacteria and one of the strongest arguments to support the endosymbiotic theory is that both mitochondria and plastids contain DNA that is different from that of the cell nucleus and that they have their own protein biosynthesis machinery.

Which of the following is evidence that supports the scientific explanation of the endosymbiotic theory?

(The DNA molecules present in the nucleus of eukaryotic cells are in the form of strings and are not circular.) Therefore gene expression similar to the bacterial system can be regarded as evidence that supports the endosymbiotic theory of the origin of eukaryotic cells from prokaryotic cells.

What is the third evidence that supports Endosymbiotic theory?

Numerous lines of evidence exist, including that mitochondria and chloroplasts have their own circular DNA (prokaryotes also have circular DNA), mitochondria and chloroplasts have a double membrane (the inner membrane would have initially been the ingested prokaryote’s single membrane, and the outer membrane initially …

What’s are the two organelles that are thought to be endosymbionts and what’s the evidence for that?

This form of symbiosis involves a larger cell that serves as a host and a smaller cell that is referred to as an endosymbiont. And based upon this theory, the organelles mitochondria and chloroplasts are supposedly the early prokaryotic endosymbionts that had been taken in.

What does cilia and flagella have in common?

Eukaryotic flagella and cilia have long been recognized as organelles involved in motility, and their structure and function have both been studied in detail. Almost all motile (secondary) cilia and flagella have the same internal structure and have essentially the same function.

Which of the following is the strongest evidence for endosymbiotic theory?

Protein import is the strongest evidence we have for the single origin of chloroplasts and mitochondria. It is probably also the strongest evidence we have to sort out the number and nature of secondary endosymbiotic events that have occurred in evolution involving the red plastid lineage.

What evidence supports the theory of endosymbiosis?

The first piece of evidence that needed to be found to support the endosymbiotic hypothesis was whether or not mitochondria and chloroplasts have their own DNA and if this DNA is similar to bacterial DNA. This was later proven to be true for DNA, RNA, ribosomes, chlorophyll (for chloroplasts), and protein synthesis.

What is the theory of endosymbiosis?

Endosymbiotic Theory. The term “endosymbiosis” means “to cooperate inside”. Whether the larger cell provided protection for the smaller cells, or the smaller cells provided energy to the larger cell, this arrangement seemed to be mutually beneficial to all of the prokaryotes.

What is the endosymbiosis hypothesis?

The endosymbiotic hypothesis concerns the origin of mitochondria and chloroplasts, two organelles contained within various eukaryotic cells. According to this hypothesis, these organelles originated as separate prokaryotic organisms that were taken inside a primordial eukaryotic cell.

What is the process of endosymbiosis?

Endosymbiosis is the process in which one organism lives within the other, and the endosymbiont is the organism that lives within the other organism. So, in accordance with the endosymbiotic theory, every eukaryotic cell that we see today is actually composed of a number of other cells which were once whole in themselves.