Ribonucleic acid, RNA (French : acide ribonucléique, ARN) A chemical found in the nucleus and cytoplasm of cells; it plays an important role in protein synthesis and other chemical activities of the cell. The structure of RNA is similar to that of DNA. There are several classes of RNA molecules, including messenger RNA, transfer RNA, ribosomal RNA, and other small RNAs, each serving a different purpose.
Every one of the audience members voted that they were mitochondria.(Sample #2)
Organelle: Ribosomes Site of protein synthesis in the cell.Three students sat on a long piece of butcher-block paper that had folds in it.
While all these organelles are found in animal cells, plant cells in addition contain a central vacuole that controls pressure to stabilize the cell and chloroplasts, the site of photosynthesis or light depended biosynthesis of sugars (carbohydrates).