What's the Matter?
Reactions of Life
Compounds of Life
Misc.
100
What is anything that takes up space and has mass?
Matter
100
What are the beginning parts of a chemical reaction?
Reactants
100
Which type of organic compound has peptide bonds?
Proteins
100
What is a pure substance made of two or more chemically combined elements?
Compound
200
What is a pure substance that is made of only one kind of atom?
Element
200
What does a catalyst do to a reactions activation energy?
Lowers it
200
What is the primary function of carbohydrates?
Fuel source
200
What is the simplest form of energy for life?
Glucose
300
Why are valence electrons important?
They are important for an atom's interaction with other atoms.
300
What is a substrate?
A molecule that connects into a perfectly shaped active site of an enzyme.
300
Which organic compound is insoluble in water?
Lipids
300
If the thermal energy of an organism's particles increases, what else increases?
Temperature
400
What is the difference between a cation and an anion?
Cation - has more protons than electrons
Anion - has less protons than electrons
400
What is the difference between cohesion and adhesion of water?
Cohesion - the attraction of water particles to each other
Adhesion - the ability of water to attract other substances to it
400
What are the three components of a nucleotide?
A base with a nitrogen in it
Phosphate gropu
Sugar
400
What is the difference between a solvent and a solute?
Solvent - the substance doing the dissolving
Solute - the substance being dissolved
500
Draw a water molecule.
500
Draw graphs for exothermic and endothermic reactions.
500
What are the four substances connected to the central carbon atom of an amino acid?
Amine group (NH2)
Carboxylic acid group (COOH)
Hydrogen
R-group
500
How does an enzyme work?
An enzyme helps a chemical reaction occur quickly by lowering its activation energy. It has a spot, called the active site, where a molecule can attach to. The enzyme uses the active to hold the substrate in place while a chemical reaction takes place.