Discover the amazing world inside your cells! Learn about DNA, energy, and how your body works.
DNA is like a twisted ladder inside your cells. It contains all the instructions to make you, you!
The ladder has four special letters: A (Adenine), T (Thymine), C (Cytosine), and G (Guanine).
Telomeres are like the plastic tips on shoelaces - they protect the ends of your DNA! They get shorter as cells divide.
Your cells are like tiny factories with different departments working together:
ATP (Adenosine Triphosphate) is like cellular money - it powers all activities in your body!
Mitochondria make ATP by breaking down food (like glucose) with oxygen. This is why we breathe!
When you exercise, your muscles need more ATP. That's why you breathe harder - to get more oxygen to your mitochondria!
When you exercise, amazing things happen in your cells:
Jump 10 times and feel your heartbeat. That's your cells asking for more ATP!
Energy level: 100%
DNA is like a biological computer code! It uses 4 letters (A,T,C,G) instead of 0s and 1s.
3 billion letters in human DNA = 750MB of information (like a video game!)
Cells read DNA like a recipe book to make proteins. Mistakes in copying (mutations) can cause changes.
If you stretched out all the DNA in one cell, it would be 2 meters long! That's taller than you!
You share 50% of your DNA with bananas! All living things use the same genetic code.
Your cells divide about 2 trillion times every day! That's how you grow and heal.
Your body makes and uses about your weight in ATP every day! It recycles the molecules.
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