Chapter 3 Review Chemistry of Life. Atoms The smallest unit of matter that cannot be broken down by...
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![Page 1: Chapter 3 Review Chemistry of Life. Atoms The smallest unit of matter that cannot be broken down by chemical means.](https://reader035.fdocuments.us/reader035/viewer/2022070413/5697bff61a28abf838cbde0b/html5/thumbnails/1.jpg)
Chapter 3 Review
Chemistry of Life
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Atoms
• The smallest unit of matter that cannot be broken down by chemical means
![Page 3: Chapter 3 Review Chemistry of Life. Atoms The smallest unit of matter that cannot be broken down by chemical means.](https://reader035.fdocuments.us/reader035/viewer/2022070413/5697bff61a28abf838cbde0b/html5/thumbnails/3.jpg)
Covalent Bonds
• Bonds between the atoms that make up water molecules
![Page 4: Chapter 3 Review Chemistry of Life. Atoms The smallest unit of matter that cannot be broken down by chemical means.](https://reader035.fdocuments.us/reader035/viewer/2022070413/5697bff61a28abf838cbde0b/html5/thumbnails/4.jpg)
Ions
• An atom that has either has lost or gained an electron
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Solutions
• Is a mixture of evenly distributed substances
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Water
• Water is polar and therefore polar substances dissolve in it.
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Chemical Reactions
• In chemical reactions energy may be absorbed, released, and required.
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Energy
• Without energy organisms can not:– Maintain homeostasis– Carry out chemical reactions– Make their own food
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Carbon
• The basic unit of most biomolecules contain
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Compounds
• Are formed when atoms of two different elements join together
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Enzymes
• Reduce the activation energy of chemical reactions
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Basic
• Having a pH between 7 and 14
![Page 13: Chapter 3 Review Chemistry of Life. Atoms The smallest unit of matter that cannot be broken down by chemical means.](https://reader035.fdocuments.us/reader035/viewer/2022070413/5697bff61a28abf838cbde0b/html5/thumbnails/13.jpg)
Cohesion
• An attraction between substances of the same kind
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Adhesion
• An attraction between different substances
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Acids
• Are compounds that form extra hydronium ions when dissolved in water
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RNA
• Subunits are made of a sugar, a base, and a phosphate group
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Carbohydrates
• A class of organic compounds made of carbon, hydrogen, and oxygen atoms in a 1:2:1 ratio
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Lipids
• A class of organic compounds that include fats, steroids, and waxes
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ATP
• Provides temporary storage of energy for cells
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Protein
• A molecular chain of amino acids
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pH
• A measure of the concentration of hydronium ions in solutions
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Test•Tomorrow on Chapter 2•Please Study these notes