They are organelles of symbiotic origin:
Correct answer: C. Chloroplast & mitochondria
- A. Nucleus & mitochondria
- B. Golgi & ER
- C. Chloroplast & mitochondria
- D. Cilia
Explanation
The eukaryotic cell might have evolved when a large anaerobic (living without oxygen) amoeboid prokaryote ingested small aerobic (living with oxygen) bacteria and stabilized them instead of digesting them. This idea is known as the endosymbiont hypothesis. According to this hypothesis, the aerobic bacteria developed into mitochondria, which are the sites of aerobic respiration. Ingestion of prokaryotes that resembled present-day cyanobacteria could have led to the endosymbiotic development of chloroplasts in plants.
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About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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