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: Summarize the information about retinoids. Here is the information:
Retinoid: The term "retinoid" is a catch-all for an array of vitamin A-based products used on skin. It can treat mild fine lines and wrinkles, acne, and dark spots. It can also improve skin texture.

If you’re looking to treat uneven skin tone, dark spots, or your skin’s texture, look for the word “retinol.” It’s a type of retinoid that’s used for these purposes.

Retinol can give you younger-looking skin by speeding up new skin cell turnover, which starts to slow in your 20s.

To treat acne, dermatologists prescribe one of these retinoids – adapalene, tazarotene, tretinoin, or trifarotene. You’ll also find adapalene in an acne-fighting product available without a prescription.

When spread on acne-prone skin, a retinoid can unclog pores. This can give you clearer skin and allow other acne gels and creams to work better.

When to apply a retinoid: Dr. Baxt recommends applying a retinoid before bed. After washing your face, wait 20 to 30 minutes and then apply it.

If you find the retinoid too drying, apply a moisturizer immediately after washing your face, using a moisturizer that won’t clog your pores. Then apply the retinoid 20 to 30 minutes later.
Response: Retinoids are vitamin A-based products. They have been found to treat mild fine lines, acne, wrinkles, and dark spots and improve skin texture. Apply retinoids 20 to 30 minutes after washing your face before bed.

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.

Describe the function of mitochondria in a cell. Here is the information: Mitochondria are often referred to as the powerhouses of the cell. They are responsible for producing the majority of the cell's supply of adenosine triphosphate (ATP), which is used as a source of chemical energy. Mitochondria are unique among cellular organelles in that they have their own DNA and are thought to have originated from ancient symbiotic bacteria. The process of ATP production involves a series of biochemical reactions known as cellular respiration, which includes glycolysis, the Krebs cycle, and oxidative phosphorylation. These reactions take place in different parts of the mitochondria, with oxidative phosphorylation occurring in the inner mitochondrial membrane.
user
Mitochondria generate most of the cell's ATP, serving as the cell's powerhouses. They have their own DNA, likely from ancient bacteria. They produce ATP through cellular respiration, which includes glycolysis, the Krebs cycle, and oxidative phosphorylation.
assistant