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33 Cards in this Set
- Front
- Back
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Atom |
Basic unit of matter |
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Nucleus |
The center of the atom |
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Electron |
Is a negatively charged particle |
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Element |
One type atom only |
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Isotopes |
Atoms with different neutrons |
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Compound |
Substance from two elements |
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Ionic bond |
Electrons shared between atoms |
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Ions |
Positively, negatively charged atoms |
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Covalent bond |
When electrons are shared |
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Molecule |
Smallest unit of compounds |
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Van der Waals forces |
Molecules attract nearby molecules |
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Cohesion |
Attraction between same molecules |
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Adhesion |
Attraction between different substances |
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Mixture |
Material composed different substances |
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Monomers |
Small that join together |
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Polymer |
Groups of monomers |
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Carbohydrates |
Compound, carbon hydrogen oxygen |
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Monosaccharide |
Single sugar molecules |
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Polysaccharides |
Macromolecules formed from monosaccharides |
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Lipids |
Mostly of carbon, hydrogen |
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Nucleic acids |
Macromolecules containing different molecules |
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Nucleotides |
Can join into polynucleotide |
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Ribonucleic acid RNA |
Contains sugar ribose |
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Deoxyribonucleic acid DNA |
Contains sugar deoxyribose |
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Proteins |
Polymers of amino acids |
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Amino acids |
Amino and carboxyl compound |
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Chemical reaction |
Process that transformed chemicals |
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Reactants |
Chemicals that cause reactions |
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Products |
Elements from chemical reactions |
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Activation energy |
Energy needed start reaction |
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Catalyst |
Substance that speeds reactions |
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Enzymes |
Proteins act biological catalysts |
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Substrates |
Reactants of enzyme-catalyzed reactions |
