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