Chloroplasts and mitochondria both contain a large number of ribosomes. Explain how the presence of this...

Chloroplasts and mitochondria both contain a large number of ribosomes. Explain how the presence of this organelle infers that they are able to make the enzymes required for photosynthesis and aerobic respiration.

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Ans. Ribosome is single membrane bound organelle which is involved in protein synthesis. Chloroplast and mitochondria are two cell organelles which contain their own DNA molecules. DNA molecule in chloroplast contain genes required for photosynthesis. These genes are translated into proteins which are enzymes involved in photosynthesis process with the help of ribosomes found in this organelle. Likewise, the abundant ribosomes found in mitochondria are responsible for the expression of genes in mitochondrial DNA which are involved in synthesis of enzymes involving in electron transport system( aerobic respiration) in the inner membrane of mitochondria. Hence, the ribosomes in these two organelles are involved the synthesis of proteins from the DNA molecules present in them to perform photosynthesis in chloroplast and aerobic respiration (electron transport system) in the inner membrane of mitochondria.

gladiator answered 1 year ago

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