Are there ribosomes in mitochondria? Where is the mitochondrial DNA located

Apparently there is.

It is a semi-autonomous organelle that needs to make its own proteins when it replicates itself, so it must have ribosomes inside.

According to the introduction in the encyclopedia, there are also:

Mitochondria are enclosed by two membranes, including the outer membrane, the inner membrane, the membrane interstitial space and the matrix.

The intermembrane space is the space between the inner and outer membranes, which contains mitochondrial DNA, mitochondrial ribosomes, tRNAs, rRNAs, and various enzymes for mitochondrial gene expression.

Yes, there are ribosomes in the nucleus, and there are also mitochondria, which are called mitochondrial ribosomes. The role of mitochondria is to provide energy to the body's cells, and DNA is necessary to produce ATP, which is the form of energy in the cell.

Yes, there is DNA in mitochondria, which means that in order to transcribe and translate, transport RNA and ribosomal RNA (that is, a type of ribosome) are used, so there is.

Yes, but it is generally the same size as the 70s ribosome in prokaryotic cells, which is also an important evidence for the endosymbiosis hypothesis.

There are ......There should be ......

The 70s type ribosome in the matrix ......

Ribosomes can be classified into three types: cytoplasmic ribosomes, mitochondrial ribosomes, chloroplast ribosomes.

Well, LZ can take a look at the encyclopedia......

Mitochondria and ribosomes are different organelles, so there can't be.

No, both mitochondria and ribosomes belong to the same organelle and are present together in the cell.

Mitochondria provide energy to cells, and ribosomes provide proteins to cells.

No, mitochondria and ribosomes are different organelles.

Mitochondrial DNA is located within the mitochondrial matrix. Mitochondrial DNA is the genetic material in mitochondria, which can produce energy for cells, and is a special form of deoxyribonucleic acid found in the mitochondria of cells. Mitochondrial DNA (mtDNA) is double-stranded and looped, and there can be one or several DNA molecules in a mitochondria.

Mitochondrial DNA is the genetic material in the mitochondria, which produce energy (ATP) for cells, and is a special form of DNA found in the mitochondria of cells. Mitochondria are organelles that provide energy (ATP) to cells. There are generally multiple DNA molecules in a mitochondria.

They carry their own DNA, mtDNA, and mutations in these genes can cause nematochondrial diseases.

The main transport methods of mitochondrial proteins are as follows:

1. Protein targeting: The localization of proteins synthesized by free ribosomes in cells is determined by the guidance signals of the precursor proteins themselves. Different types of guide signals can direct proteins to localize to specific organelles, such as mitochondria, chloroplasts, nuclei, and peroxisomes, among others.

After these proteins are synthesized and released on free ribosomes, they need to find their own destination, so they are called protein targeting.

2. Post-translational transport: Proteins synthesized on free ribosomes must wait for the proteins to be completely synthesized and released into the cytosol before they can be transported, so this transport mode is called post-translational transport. Protein packets transported in this way.

It includes some proteins of mitochondria, chloroplasts, and nucleus, as well as all proteins of peroxisomes, etc. A considerable number of proteins synthesized on free ribosomes exist directly in the cytosol, including cytoskeletal proteins, enzymes or proteins of various reaction systems, etc.

3. Guide peptide transport: Also known as transport peptide or guide sequence, it is the N-terminal signal of a protein synthesized on a free ribosome. The guide peptide is a peptide chain of about 20 80 amino acids at the N-terminal of the nascent protein, and the guide peptide has a special characteristic structure, which is conducive to crossing the mitochondrial bilayer membrane.

No, because mitochondria are semi-autonomous organelles, and their genetic material, DNA, can only translate a portion of proteins, some of which rely on nuclear DNA

Control synthesized. With free ribosomes in the cytoplasm.

Upstairs garbage, ribosomes in mitochondria. Otherwise, what is the DNA in its inner membrane used for? The predecessor of mitochondria has a theory that cells engulf bacteria that are aerobically respiring. Don't you think there are no ribosomes in bacteria?

Both ribosomes and mitochondria are plestisomes within the cell, and they have important functions in the life process of the cell. Their similarities include:

1.Both are intracellular membrane structures: both ribosomes and mitochondria are membrane structures that are both encased in a membrane in the cell fluid and exist in the cytoplasm and between the cytoplasm and the outer mitochondrial membrane, respectively.

2.All involved in the process of protein synthesis: ribosome is an important pacemaker for protein synthesis in the cell, and is one of the specialized protein complexes in the cell, which can recognize the start codon and its nearby mRNA and bind to the trapped bird, so that the tRNA can enter the ribosome and use amino acids for protein synthesis.

Mitochondria also contain some ribosomes of their own, which can participate in the synthesis of mitochondrial proteins.

Ribosomes are involved in the process of intracellular gene expression, so that cells can produce appropriate proteins according to external needs; Mitochondria are responsible for the initial production of ATP in the cell, which is used for other biochemical reactions in the cell.

In summary, ribosomes and mitochondria have very important and similar roles in cellular life activities.