What does the term 'organelle' refer to?

The term 'organelle' refers to the specialized structures within a cell that perform distinct and essential functions necessary for the cell's life processes. Organelles include components such as the nucleus, which houses genetic material, mitochondria, which produce energy, and ribosomes, which are involved in protein synthesis, among others. Each organelle contributes to the overall functioning and survival of the cell by carrying out specific tasks. Understanding organelles is crucial for appreciating how cells operate as the building blocks of all living organisms.