Chapter 2 Flashcards
Matter
Anything that occupies space and has mass
What are the big 4 elemts
Hydrogen
Oxygen
Cabron
Nitrogen
What are atoms made of
Protons neutrons and electrons
Electrons
The number of electrons equal the number of protons
Ions
Lost or gain electrons
Charged atoms
Isotopes
Atoms containing a diff number of neutrons
Molecule
The union of two ir more atoms of diff elements
Covelant bond
One or more pair of electrons is share
Are hard to break
Ionic bonds
Transfers one atom to another
Polar water molecules
Shared electrons in a water molecules and soends more time in the hydrogen bonds
Hydrogen bond
Electrosic Attraction than a true bond because electrons are neither shared ir transfered
Makes watter wetter
ATP
Sustainable energy that the cell uses to do its thing
Catabolic
Breaking down complex into simple nd energy is releases
Anabolic
Builds complex from simple ones
Enzymes
Speed up chemical reaction by lowering the activation energy