sentence2_structure: A ribosome<>consists<>of two elements, rrna and proteins
sentence1: The newly synthesized RNA, called messenger RNA, or mRNA, moves quickly to bodies in the cytoplasm called ribosomes, which are composed of two particles made of protein bound to ribosomal RNA, or rRNA.
sentence2: A ribosome consists of two elements, rrna and proteins.
question: What two elements do ribosome consist of?