Organelles that contain RNA and protein and that interact with RNA from other parts of the cells to join amino acids together to form proteins are called:

The organelles you are referring to are called ribosomes. Ribosomes are essential cellular structures found in all living cells, and they play a crucial role in the process of protein synthesis, known as translation. They consist of ribosomal RNA (rRNA) and proteins, which work together to interpret the messenger RNA (mRNA) sequence and link amino acids in the correct order to form a polypeptide chain, ultimately leading to the production of functional proteins. Ribosomes can be found freely floating in the cytoplasm or attached to the endoplasmic reticulum, contributing to the cellular processes involved in growth and metabolism.