Based on the endosymbiotic theory, what cell would result from the endosymbiosis of a cell with a cyanobacterium?

Question

a eukaryotic cell that can make its own food
a prokaryotic cell that can make its own food
an aerobic bacterium
an anaerobic bacterium

Answer 1

Based on the endosymbiotic theory, if a cell were to undergo endosymbiosis with a cyanobacterium, the resulting cell would be a eukaryotic cell that can make its own food. This is because cyanobacteria are photosynthetic organisms capable of producing their own food through photosynthesis. When a cyanobacterium is engulfed by a host cell, it becomes an endosymbiont and continues to carry out photosynthesis within the host cell, providing it with nutrients and energy. Over time, this symbiotic relationship eventually led to the evolution of chloroplasts in eukaryotic cells, which are believed to have originated from ancestral cyanobacteria.