Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Biochemistry
| Term | Definition |
|---|---|
| matter | anything that takes up space and has mass to it |
| element | simplest form of a substance that can't be broken apart and still have the properties of that element |
| compound | two or more elements bonded together |
| CHNOPS | most common elements in all life forms |
| atom | smallest unit of matter with set chemical properties |
| subatomic particles | small parts that make up atoms |
| proton | positive charge and in nucleus of atom |
| neutron | no charge and in nucleus of atom |
| electron | negative charge and OUTSIDE nucleus of atom |
| electron cloud | space outside nucleus of atom in which electrons are located and is divided into different levels |
| kinetic energy | energy of movement-move freely |
| potential energy | energy of position-when bonded |
| ion | atoms with different numbers of electrons than normal for a certain element |
| Daltons/Atomic Mass Units(AMU's) | unit of measurement for atoms |
| molecule | two or more atoms bonded together |
| atomic number | helium 2← He 4.0026 |
| mass number | helium 2 He 4.0026← |
| atomic number | the amount of protons in the element |
| isotopes | atoms that possess different numbers of neutrons |
| energy | from rapid movement of electrons |
| periods | horizontal on the periodic table |
| columns/families | vertical on periodic table |
| covalent bonds | always creates a molecule |
| polar molecule | carries an electrical charge at poles |
| non-polar molecule | don't have an electric charge |
| structural formula | used to show molecule's shape |
| molecular/chemical formula | tells the elements, and number of atoms of each, that make up a molecule |
| ionic bonds | strong when dry, weak in water-so they dissolve into ions |
| How are ionic bonds created? | by gaining or losing electrons between elements so that each element can fill its outer shell |
| cation | has a positive charge because it has more PROTONS than electrons |
| anion | has a negative charge because it has more ELECTRONS than protons |
| ionic compounds | cation bonded to an anion to make a salt when dry |
| hydrogen bonds | fairly weak bonds-"like" a magnet- +hydrogen attracted to a -substance(usually oxygen) |
| What is the most important biological bond? | hydrogen bond |
| Making a bond | energy needs to be consumed |
| Breaking a bond | gives off energy |
| reactants | left side of equation |
| products | on right side of equation |
| Law of Conservation of Mass | Matter is neither created nor destroyed just transferred or transformed |
| equilibrium | chemical reaction goes both ways at equal rateds |
Created by:
100003220403022
Popular Biology sets