Quick Answer: Where Is Mitochondria Found?

What bacteria did mitochondria come from?

The endosymbiotic hypothesis for the origin of mitochondria (and chloroplasts) suggests that mitochondria are descended from specialized bacteria (probably purple nonsulfur bacteria) that somehow survived endocytosis by another species of prokaryote or some other cell type, and became incorporated into the cytoplasm..

How do bacteria survive without mitochondria?

As with the mitochondrion, a bacterial ATPase lets protons (under the protonmotive force) into the cytoplasm, using them to make ATP. So, though they don’t have mitochondria, bacteria can generate energy through glycolysis and by generating a proton gradient across their cell membranes!

What does mitochondria do in the body?

Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell’s biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

What is difference between prokaryotes and eukaryotes?

Prokaryotes are organisms that consist of a single prokaryotic cell. Eukaryotic cells are found in plants, animals, fungi, and protists. They range from 10–100 μm in diameter, and their DNA is contained within a membrane-bound nucleus. Eukaryotes are organisms containing eukaryotic cells.

Where are the most mitochondria in the body found?

heart muscle cellsWhat cells have the most mitochondria? A. Your heart muscle cells – with about 5,000 mitochondria per cell. These cells need more energy, so they contain more mitochondria than any other organ in the body!

What is mitochondria in simple words?

Mitochondria (sing. mitochondrion) are organelles, or parts of a eukaryote cell. … They make most of the cell’s supply of adenosine triphosphate (ATP), a molecule that cells use as a source of energy. Their main job is to convert energy. They oxidise glucose to provide energy for the cell.

Do mitochondria have DNA?

Mitochondrial DNA is the small circular chromosome found inside mitochondria. The mitochondria are organelles found in cells that are the sites of energy production. The mitochondria, and thus mitochondrial DNA, are passed from mother to offspring.

How are mitochondria created?

Mitochondria are produced from the transcription and translation of genes both in the nuclear genome and in the mitochondrial genome. The majority of mitochondrial protein comes from the nuclear genome, while the mitochondrial genome encodes parts of the electron transport chain along with mitochondrial rRNA and tRNA.

How do you explain mitochondria to a child?

You can think of the mitochondria as the energy factory or power plant of the cell. Mitochondria produce energy through the process of cellular respiration. Respiration is another word for breathing. The mitochondria take food molecules in the form of carbohydrates and combine them with oxygen to produce the ATP.

Are mitochondria and bacteria the same size?

Size and Shape Mitochondria have plump, jellybean-like shapes, similar to the rod-shaped bacilli bacteria. The average bacillus ranges between 1 and 10 microns in length, and the mitochondria of both plant and animal cells measure in the same range.

Which cells have a lot of mitochondria?

Some cells have more mitochondria than others. Your fat cells have many mitochondria because they store a lot of energy. Muscle cells have many mitochondria, which allows them to respond quickly to the need for doing work. Mitochondria occupy 15 to 20 percent of mammalian liver cells according to Karp.

What is a mitochondria made of?

A mitochondrion contains outer and inner membranes composed of phospholipid bilayers and proteins.

What does mitochondria look like?

Mitochondria have two membranes (protective coverings) one surrounding the other, called the inner and outer mitochondrial membranes. The inner membrane is highly folded and forms structures called cristae, the machinery for energy generation can be found on these cristae.

What do mitochondria and bacteria have in common?

Most important are the many striking similarities between prokaryotes (like bacteria) and mitochondria: Membranes — Mitochondria have their own cell membranes, just like a prokaryotic cell does. DNA — Each mitochondrion has its own circular DNA genome, like a bacteria’s genome, but much smaller.

Where is mitochondria found plant or animal?

Where are the mitochondria found? Mitochondria are found in the cells of nearly every eukaryotic organism, including plants and animals. Cells that require a lot of energy, such as muscle cells, can contain hundreds or thousands of mitochondria.

Where is mitochondria found prokaryotic or eukaryotic?

Do prokaryotes have mitochondria? No, prokaryotes do not have mitochondria. Mitochondria are only found in eukaryotic cells. This is also true of other membrane-bound structures like the nucleus and the Golgi apparatus (more on these later).

Which type of cell is most likely to have the most mitochondria?

muscle cellsAnswer and Explanation: It is generally believed that the cells that have the most mitochondria in them are the muscle cells. The mitochondria are the energy-producing…

What is the other name of mitochondria?

power house of cellMitochondria is also known as power house of cell due to the production of ATP or kreb’s cycle and ETS taking place in it. Other name of mitochondria is POWER HOUSE OF CELL. A common name is the ‘powerhouse of the cell’.

Why are there no mitochondria in prokaryotes?

Prokaryotic cells are less structured than eukaryotic cells. They have no nucleus; instead their genetic material is free-floating within the cell. They also lack the many membrane-bound organelles found in eukaryotic cells. Thus, prokaryotes have no mitochondria.

Do prokaryotes have a mitochondria?

Prokaryotes, on the other hand, don’t have mitochondria for energy production, so they must rely on their immediate environment to obtain usable energy. Prokaryotes generally use electron transport chains in their plasma membranes to provide much of their energy.

Are mitochondria absent in prokaryotes?

Prokaryotes lack mitochondria and instead produce their ATP on their cell surface membrane. Some researchers have suggested that mitochondria might actually be one of the reasons that eukaryotic cells are typically larger than prokaryotes and more varied in their shape and structure.

Can mitochondria live on their own?

However, mitochondria cannot survive outside the cell. … Mitochondria divide independently by a process that resembles binary fission in prokaryotes. Specifically, mitochondria are not formed de novo by the eukaryotic cell; they reproduce within the cell and are distributed between two cells when cells divide.

Can mitochondria divide?

Mitochondria can divide by prokaryotic binary fission and since they require mitochondrial DNA for their function, fission is coordinated with DNA replication. Some of the proteins that are involved in mitochondrial fission have been identified and some of them are associated with mitochondrial diseases.

Are mitochondria found in bacterial cells?

Bacteria do not contain membrane-bound organelles such as mitochondria or chloroplasts, as eukaryotes do. However, photosynthetic bacteria, such as cyanobacteria, may be filled with tightly packed folds of their outer membrane.

What are examples of prokaryotes?

Examples of prokaryotes are bacteria and archaea. Examples of eukaryotes are protists, fungi, plants, and animals (everything except prokaryotes).

Does mitochondria come from mother or father?

In sexual reproduction, mitochondria are normally inherited exclusively from the mother; the mitochondria in mammalian sperm are usually destroyed by the egg cell after fertilization.

Who first discovered mitochondria?

Albert von KollikerMitochondria, often referred to as the “powerhouses of the cell”, were first discovered in 1857 by physiologist Albert von Kolliker, and later coined “bioblasts” (life germs) by Richard Altman in 1886. The organelles were then renamed “mitochondria” by Carl Benda twelve years later.