CELLULAR UNIVERSE
Travel from your plate to your cells. Discover how digestion, nutrients, DNA, RNA and cell structures work together to support growth, energy and normal tissue repair.
What happens when you eat?
Choose a food to explore some of its nutrients and their roles in the body. Each food contains many nutrients, and variety matters.
How does a cell build proteins?
1. DNA stores instructions
DNA contains genetic information. Cells use specific genes as instructions for making proteins.
2. RNA carries a working copy
Messenger RNA carries information from a gene to the cell's protein-making machinery.
3. Ribosomes assemble proteins
Ribosomes read messenger RNA and link amino acids into proteins. Dietary protein supplies amino acids, though the body can make some of them.
4. Cells maintain and repair themselves
Cells use energy, enzymes and available nutrients to maintain their structures and repair some DNA damage. Repair ability differs across tissues; dead cells cannot simply be revived by eating a particular food.
Which statement is scientifically accurate?
Choose your answer.
Explore how your body works
Research-inspired lessons from the Central Intelligence Worldwide Universe, reviewed for young learners. Tap a picture to discover more.
Choose a picture to explore.
Research concepts are not treatment recommendations. Experimental regenerative medicine has important limitations and risks.
Educational simulation, not medical or nutritional advice. Children's needs vary with age, health, activity and access to food. No foods are morally labeled good or bad, and supplements should not be treated as substitutes for medical care.
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