What is the endosymbotic theory?

Answer 1

This theory states that the organelles found in cells were once their own independent cells. Throughout time, these independent organelles were consumed by bigger cells and not digested, but used in exchanged for their services.

Answer 2

The theory of Endosymbiosis explains the origin of

chloroplasts and mitochondria and their double membranes.

This concept postulates that chloroplasts and mitochondria

are the result of years of evolution initiated by the

endocytosis of bacteria and blue-green algae.

According to this theory, blue green algae and bacteria

were not digested; they became symbiotic instead.

Endocytosis is when a substance gains entry

into a cell without passing through its cell membrane.

A cell's plasma membrane invaginates

and fuses to lock foreign material inside.

An intracellular vesicle is formed as a result.

The ribosomes of the inner structure (in chloroplasts and mitochondria)

resemble prokaryotic ribosomes.

Answer 3

The endosymbiosis theory proposes that the mitochondrion and chloroplast organelles were once living inside a prokaryotic cell as endosymbiosis. The definition of symbiosis is- a relationship between two organisms in which one of the two organisms lives inside the body of the other.

Answer 4

The endosymbiotic theory suggests that eukaryotic cells arose from a mutual relationship of prokaryotic cells. Evidence shows that prokaryotic and eukaryotic cells share many characteristics. The theory focuses on the origins of the chloroplasts and mitochondria of photosynthetic prokaryotes and aerobic heterotrophs, respectively.

The similarities in characteristics include:

1. They both go through binary fission to reproduce

2. Eukaryotes are about the same size as eubacteria

3. The ribosomes of the eukaryotes, when examined with great detail, more resemble those of a prokaryote than a eukaryote

Scientists believe that archezoa, a eurkaryotic organism, most resembles the prokaryotes. It does not contain mitochondria.

Answer 5

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Answer 6

the evolution of eukaryotic cells from prokaryotic anscestors

Answer 7

is the material made in the cells