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33 Cards in this Set

  • Front
  • Back
Atom
Smallest particle of matter.
Element
Substance made of only one kind of atom.
Proton
+ found in the nucleus
Neutron
Neutral found in the nucleus
O
Oxygen
H
Hydrogen
N
Nitrogen
S
Sulfer
Molecules
Any 2 or more atoms BONDED together.
Covalent Bonds
Chemical bonds between atoms when electrons are shared.
Ionic Bonds
Chemical bonds between atoms with + and - charges.
Mixture
Substances mixed but not bonded together.
Solutions
A mixture when one substance surrounds another.
Suspensions
a solution where things seperate out of the solution if it is not disturbed.
Organic Compounds
molecules containing C
P
Phosphorus
Suspensions
WH things seperate out of a solution
Organic Compounds
molecules containing C
electron
negative charge and it is found circling the nucleus of an atom
Carbohydrates
an organic molecule


made of long branched chains

stores and releases energy

EX: starch, sugar, cellulose
Lipids
an organic molecule made of long chains that insulates, makes protective coatings and stores energy
EX: fats and oils
Proteins
an organic compound that is made of amino acids, has many different shapes and gives the cell and many organs sturcture - Proteins are also hormones and enzymes

EX: muscles, growth hormones
EX
Nucleic acids
an organic compound that is a long chain of molecules that store all the information the cll needs
EX: DNA
Enzymes
proteins that are produced by the body that control chemical reactions tha happen in cells
Cell membrane
a barrier that surrounds the cell and controles what goes in and out
selective permeability
the ability of the cell membrane to control what goes in and out of the cell
diffusion
the movement of any substance from an area of higher concentration to an area of lower concentration
osmosis
the movement of WATER from an area of higher concentration to an area of lower concentration
passive transport
getting things into or out of the cell without the cell using any energy
active transport
using energy to get things into or out of the cell
endocytosis
when the cell membrane surrounds materials that are outside the cell and brings them into the cell
exocytosis
when the cell moves materials to the cell membrane and releases them out of the cell
What are the 4 types of organic molecules?
Lipids
Carbohydrates
Proteins
Nucleic acids