HS-LS1-7

Use a model to illustrate that cellular respiration is a chemical process whereby the bonds of food molecules and oxygen molecules are broken and the bonds in new compounds are formed resulting in a net transfer of energy.

  1. Health & Medicine

    Zebra finches can ‘drink’ water from their own fat

    When water is scarce, thirsty zebra finches can produce their own water. They do it by breaking down their body fat.

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  2. Microbes

    Recycling the dead

    When things die, nature breaks them down through a process we know as rot. Without it, none of us would be here. Now, scientists are trying to better understand it so that they can use rot — preserving its role in feeding all living things.

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  3. Animals

    Eating can be skin deep

    In the laboratory, bottom-dwelling hagfish absorb nutrients through the skin.

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  4. Chemistry

    Explainer: What are oxidants and antioxidants?

    Certain chemicals, including many in foods, fight chemical reactions that could harm cells in the body and in wildlife.

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