Dental Admissions Test (DAT) Practice Test

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Prepare for the Dental Admissions Test (DAT) with our comprehensive practice test. Study effectively with flashcards and multiple-choice questions, each with detailed hints and explanations. Get ready to ace your exam and secure your future in dentistry!

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Which of the following is believed to be the first organelle that formed on earth?

  1. Golgi apparatus

  2. Lysosomes

  3. Ribosomes

  4. Vacuoles

The correct answer is: Ribosomes

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.

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