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: Give me an overview of this question and the answers for it. 

Is every aspect of these trays including the lid silicone?
Answer:Only the green reservoir (bottom) of the trays are silicone. But if you are silicone-adverse, that is also where the water rests in the tray. The silicone bottom allows one to pop out an ice cube, or however many one specifically wants, without having to "crack open" the whole tray. I am very happy with the product, and with the lids, they can be stored or stacked very conveniently in the freezer. see less
By BP20000 on September 16, 2020
four corners of the lid of each ice trays are designed with lid lifters.
By Doqaus US SELLER  on September 15, 2020
No. The only silicone portion of the trays is the green colored bit at the bottom. That being said, although I've only had these a few weeks, I really love them. The silicon part makes it easy to pop out any cubes that don't come free with the first "twist" or if you prefer, you can easily pop out just one cube at a ti… see more
By Desert Rat X on September 15, 2020
Nope. The white part is plastic, as is the lid. This is actually a good thing, though, because all-silicone ones aren’t stable and wobble and splash a little.
By Tashaskye on September 15, 2020
Response: The person is asking how much of the trays is silicone. The replies all agree that the colored area at the bottom is the only part that is silicone.

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.

What is the function of the mitochondria in a cell?
user
Mitochondria are known as the powerhouses of the cell because they generate the cell's supply of adenosine triphosphate (ATP), which is used as a source of chemical energy. They are involved in other processes as well, such as the regulation of the cell cycle and cell growth, and the control of the cell's metabolism.
assistant