NEET BIOLOGY

Detailed explanation-1: -The ribosomes of each of them contain two subunits of the 30S and 50S and make the 70S ribosome. The reason is believed to be that these organelles are descendants of bacteria itself. Therefore, bacterial cells, mitochondria, and chloroplast all contain the 70S ribosome. So, the correct answer is ‘70 S type’.

Detailed explanation-2: -The bacterial ribosome consists of multiple proteins (RP, r-proteins) and three ribosomal RNA (rRNA) molecules-16S in the small subunit, 23S and 5S in the large subunit (Kurland 1972).

Detailed explanation-3: -Ribosomes-Ribosomes are microscopic “factories” found in all cells, including bacteria. They translate the genetic code from the molecular language of nucleic acid to that of amino acids-the building blocks of proteins.

Detailed explanation-4: -Ribosomes are found mainly bound to the endoplasmic reticulum and the nuclear envelope. As well as the cells are freely dispersed throughout the cytoplasm, depending on whether they are plants, animals, or bacteria. Bacterial cytoplasm contains ribosomes that translate mRNA into proteins.

Detailed explanation-5: -Chemically, ribosomes are made up of ribonucleoprotein (in eukaryotic cells, the constituent of the ribosome is 40% protein and 60% ribosomal RNA).