Why mitochondria is called cell within cell?

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. It is for this reason that mitochondria are often referred to as the powerhouses of the cell. Cells that need a lot of energy, like muscle cells, can contain thousands of mitochondria.

What evidence do mitochondria provide that support the 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 …

Is mitochondria cell within cell?

Technically, mitochondria is not a cell within a cell. Of course, it has DNA but not as much as a functional cell. It carries out only specialized mitochondrial reactions, cell carries out a lot more.

What evidence supports the bacterial origin of mitochondria?

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.

What is inside a mitochondria?

They are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae. The fluid contained in the mitochondria is called the matrix.

What is the first evidence that supports the endosymbiotic theory?

Single stranded, circular DNA is found exclusively in prokaryotes. This evidence supports the endosymbiosis theory because these characteristics would allow the mitochondria and chloroplasts to survive on their own.

Which of the following is a key piece of evidence suggesting that mitochondria in our cells evolved from free-living bacteria?

Which of the following is a key piece of evidence suggesting that the mitochondria in our cells evolved from free-living bacteria? They contain their own DNA. Why was the rise of oxygen so important to the evolution of life on Earth?

What evidence supports the hypothesis that mitochondria were once free-living prokaryotic cells?

What evidence supports the hypothesis that mitochondria were once free-living prokaryotic cells? They replicate independently of the cell they are in. They have circular pieces of DNA. How did anaerobic cells influence the development of aerobic cells?

What is the role of mitochondria in cellular respiration?

Mitochondria have an important role in cellular respiration through the production of ATP, using chemical energy found in glucose and other nutrients. Mitochondria are also responsible for generating clusters of iron and sulfur, which are important cofactors of many enzymes.