Chemistry of Life. Nature of matter. Matter: Anything that occupies space & has mass . Everything in the universe is made of mass . Atom is the smallest unit of matter that cannot be broken down by chemical means.
Chemistry of Life
Element is a substance made of only 1 kind of atom, and it is a pure substance.
Atoms can bond together:
compounds are alike in
that they both fill outer
is a weak chemical
trical charge because
they contain an un-
equal number of elec-
trons and protons.
Na+ + Cl- = NaCl
and cool down slowly.
life, stores heat efficiently and
binds to itself and other sub-
substance in a cell is water.
The hydrogen bonds between water molecules cause the cohesion of liquid water. Cohesion is an attraction between substances of the same kind. Because of cohesion, water and other liquids form drops and thin films. The thin films allow some insects to stand on the surface of water because water is cohesive and adhesive. This attraction between water molecules (to itself) causes a condition known as surface tension.
Nonpolar molecule and water
Polar Molecules and water
(hydroxide) ions and
has a pH>7
acidic and alkalinity.
1. Monsaccharides or simple sugars. They are the building blocks of carbohydrates.
2. Disaccharides are 2 monosaccharide molecules linked.
Glycogen in Liver Cells
3. Nucleic Acids are in all of your cells.
1. DNA Deoxyribonucleic Acid
2. RNA Ribonucleic Acid
(starting materials)(forms) (newly formed substances)
only acts on a particular substance
called substrate. An enzyme has
deep folds on its surface, and these
fold form pockets called active sites.
Activation Energy= Energy needed to start a