Multiple choice Which of the following statements about nucleus is true? Nucleus possesses a membrane bound organelle called nucleolus. Nucleus serves as a power house of the cell. Cells without a membrane bound nucleus cannot divide. Nucleus was the first organelle to be discovered. Reveal answer Fill a bubble to check yourself D Correct answer Explanation Nucleus was the first organelle to be discovered. It was first noticed by Antonie van Leeuwenhoek.