Summarize the role of the mitochondria in a cell according to the following passage:

Mitochondria are membrane-bound organelles found in the cytoplasm of almost all eukaryotic cells. They are often referred to as the 'powerhouses of the cell' because they generate the majority of the cell's supply of adenosine triphosphate (ATP), which is used as a chemical energy source. Mitochondria have their own DNA and are believed to have originated from ancient free-living bacteria that were engulfed by ancestral eukaryotic cells. They also play a role in regulating the cell cycle and cell growth, and are involved in other cellular processes such as signaling, cellular differentiation, and apoptosis.
Summarize the role of the mitochondria in a cell according to the following passage:

Mitochondria are membrane-bound organelles found in the cytoplasm of almost all eukaryotic cells. They are often referred to as the 'powerhouses of the cell' because they generate the majority of the cell's supply of adenosine triphosphate (ATP), which is used as a chemical energy source. Mitochondria have their own DNA and are believed to have originated from ancient free-living bacteria that were engulfed by ancestral eukaryotic cells. They also play a role in regulating the cell cycle and cell growth, and are involved in other cellular processes such as signaling, cellular differentiation, and apoptosis.
user
Mitochondria, known as the 'powerhouses of the cell,' generate most of the cell's ATP for energy. These organelles have their own DNA, likely originating from ancient bacteria, and are involved in regulating the cell cycle, growth, signaling, differentiation, and apoptosis.
assistant
Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: In short, what are Iron Man's powers? Draw your answer from the text below:

Without his suit of armor, Tony Stark has no supernatural powers. He is only limited by his imagination. Tony is a brilliant engineer and has used his talents to create a powerful suit of armor that enables the wearer to fly, shoot beams of energy from his hands and chest, and resist the vacuum of space. The suit also protects the wearer from damage and grants superhuman strength.

The suit is constantly being redesigned to face the new challenges that Tony Stark meets on a daily basis. There are specialty suits that have been made such as the Arctic, Stealth, Space, Hulkbuster, and Thorbuster armors. There have been nearly 40 different variations of the Iron Man armor in the current reality of the Iron Man comics.
Response: In short, Iron Man has no real superpowers outside his suit. Instead, he uses his engineering skillset to create armor that grants extreme strength, flight and energy beams. His suit also protects him from damage and he regularly upgrades it to meet his needs.

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.
