Answer: mitochondria
Explanation:Animals and plants are made up of many complex cells called eukaryotic cells. Inside these cells are structures that perform special functions for the cell called organelles. The organelle that is responsible for producing energy for the cell is the mitochondria And cellular respiration.
It's purpose is to break down energy from carbohydrates and other organic molecules stored during photosynthesis
All living things have cells, they reproduce, they more in some king of
way/ grow, and they use energy from some sort of water and food.
The situation that a new technology would be most likely to cause change in existing theory about cell is : D. The technology allows detection of a substance that could not be detected previously
Cell is incredibly small and we still hasn't 100% figured out their perfect mechanism yet. New technology might found the new substance that alter the cell's theory as a whole
hope this helps