The Nature of Matter
Properties of Water
Carbon Compunds.
Chemical Reactions
Enzymes
100
A Greek word meaning unable to cut.
What is atomos
100
An uneven distribution of electrons between the oxygen and hydrogen atoms.
What is polarity?
100
A single mer.
What is a monomer
100
A process that changes or transforms one set of chemicals into another one.
What is a chemical reaction?
100
A substance that speeds up the rate of a chemical reaction.
What is a catalyst?
200
The center of the nucleus containing the protons and neutrons.
What is the nucleus.
200
An attraction between molecules of the same substance.
What is cohesion?
200
Monomers and polymers used as the main source of energy for living things and structural purposes for plants.
What are carbohydrates.
200
The elements of compounds that enter into a chemical reaction.
What is reactants?
200
A protein that acts as a biological catalyst.
What is an enzme?
300
Negatively charged particles that orbit the nucleus of an atom.
What are electrons?
300
Attraction between molecules of different substances.
What is adhesion?
300
Stores energy. Also important in biological membranes.
What are Lipids?
300
The elements or compounds produced by a chemical reaction.
What is products?
300
The reactants of enzyme catalyzed reaction.
What is a substrate?
400
A substance formed by the chemical combination of two or more elements in definite proportions.
What are compounds?
400
A scale used to show the relative concentrations of H+ and OH- ions.
What is a pH scale?
400
Polymers of nucleotides used to make (RNA) and (DNA)
What is nucleic acid?
400
Energy required to start a chemical reaction.
What is activation energy?
400
A temporary structure composed of an enzyme and it's associated substrate.
What is the enzyme substrate complex?
500
A bond that forms when electrons are shared between atoms.
What is a covalent bond?
500
Any compound that forms H+ ions in solution.
What is an acid?
500
Formed from monomers called amino acids.
What is amino acids?
500
Chemical reactions that absorb energy will not occur without this
What is a source of energy.
500
A value above 7.5 or below 6.5 will destroy enzymes.
What is pH
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