What are the functions of the ribosomes in mitochondria?

Answer 1

The ribosomes in mitochondria have the same functions as ribosomes elsewhere.

Mitochondria contain DNA in the form of circular molecules. Along this DNA there are 37 genes, of which 13 hold the code for polypeptide chains that contribute to the synthesis of proteins in the inner membrane of the mitochondrion, which is the part of the mitochondrion at which ATP is synthesized.

These 13 genes are transcribed just as nuclear genes are in eukaryotic cells, and the messenger RNA (mRNA) molecules are translated at mitochondrial ribosomes.

The ribosomes are smaller than either prokaryotic or eukaryotic ones, having a sedimentation rate of 55S (Svedberg units) as against 70S for prokaryotic ribosomes and 80S for eukaryotic ones.

Answer 2

Ribosomes are involved in the making of proteins (protein synthesis).

In more technical terms, they bind to mRNA strands and expose mRNA codons to tRNA anticodons, and as tRNA bind (though complementary base paring) to the mRNA, they bring amino acids, which form peptide bonds with each other. As the ribosome moves along the mRNA strand, the amino acid chain builds up, eventually forming a polypeptide (protein) which is released

Answer 3

Ribosomes are protein macromolecules made from complexes of RNAs and found within all living cells