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  1. Molecular structure of glucose (video) | Khan Academy

    Because carbon's covalent bonds are strong enought to keep it together. Watch first five sections at chemistry.

  2. Carbohydrates (article) | Chemistry of life | Khan Academy

    The bonds that make up polysaccharides are intermolecular forces and this completely changes the chemical setup of the former molecules. They form new molecules and give completely different …

  3. Molecular structure of fructose (video) | Khan Academy

    That proton is actually likely to be involved in a hydronium molecule. And the same thing would've happened in glucose right over here. This, one of the two double bonds could now be used to form a …

  4. Intramolecular and intermolecular forces - Khan Academy

    It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to …

  5. Steps of cellular respiration | Biology (article) | Khan Academy

    Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative …

  6. Dehydration synthesis or a condensation reaction - Khan Academy

    So, as the oxygen uses its lone pairs, the carbon is sort of overbonded, which then drives it to lose its bond with its hydroxide group and form a covalent bond with the other monomer's oxygen.

  7. Intro to photosynthesis (article) | Khan Academy

    Jul 17, 2016 · These do not have energy stored in the bonds between phosphates, as there is only one. Biological processes add/subtract phosphates, changing these into each other.

  8. Molecules and compounds overview - Khan Academy

    To illustrate further, consider the two major types of chemical bonds: covalent bonds and ionic bonds. In covalent bonds, two atoms share pairs of electrons, while in ionic bonds, electrons are fully …

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  10. Ionic bonds (video) | Khan Academy

    Ionic bonds result from the attraction between oppositely charged ions. For example, sodium cations (positively charged ions) and chlorine anions (negatively charged ions) are connected via ionic bonds …