Chemistry, 13.11.2019 07:31 elian1418

While writing your lecture notes, you are trying to develop a way to impart to your students how the removal of a water molecule, a hydroxyl and a hydrogen atom, will be used in making macromolecules. a molecule is a collection of atoms joined through different types of bonds. a macromolecule is the joining of numerous molecules into something that is relatively quite large. the addition of a molecule to a macromolecule, as well as the removal of a molecule from the macromolecule, involves a molecule of water. from past experience you are aware that when you state this to your students many will unfortunately assume you are referring to liquid water. your students must understand that in biological reactions water, h2o, is actually a hydroxyl group (-oh) and a hydrogen atom (h+) that will be removed or added when altering macromolecules. a dehydration synthesis (removal of water) reforms atomic bonds between molecules to create a larger macromolecule. in a dehydration reaction, a hydroxyl group is removed from one reactant molecule while a hydrogen atom is stripped from another reactant molecule.

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