2.1
What is Matter
Anything that has mass and takes up space
base pH
8-14
Can matter be created or destroyed
No
What is an Exothermic reaction
Energy is emitted during the reaction
What is Metabolism
Sum of all the reactions within an organism
What are Lipid's
fat or oil
acids pH
0-7
Activation Energy
Energy required to start a chemical reaction
What is an Endothermic reaction
Energy is absorbed during the reaction
First characteristic of life
Responds to enviorment
What are Charbohydrates
Sugar or starch is used to store energy
water pH
7
Enzyme
Speed up reactions in cells, without them most life would die
Catabolic reactions
Exothermic reactions, which break down large molecules and supply energy
Second characteristic
Proteins are made of?
Chains of amino acids
What is Polarity
electrical charge difference between areas of a molecule
Activation Energy
Energy required to start a chemical reaction
Biochemical Reactions
Reactions in living organisms
Third characteristic
Reproduces
What makes nucleic acids
Smaller pieces called nucleotides
Acids change to what color
Blue-Red
Chemical Reactions
Change of one substance into another
Anabolic reactions
Endothermic reactions, which build up large molecules and require energy
Fourth Characteristic
Maintains Homestatics