Dental Admissions Test (DAT) Practice Test

Ribosomes are believed to be the first organelle that formed on earth because they are present in both prokaryotic and eukaryotic cells, indicating that they are essential for basic cellular function. The other options, Golgi apparatus, Lysosomes, and Vacuoles, are all considered to be more complex organelles that evolved later in the development of cells. Additionally, ribosomes are involved in protein synthesis, which is a crucial process for all forms of life, supporting the idea that they were one of the first organelles to evolve.