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II
III
IV
V
100
The shape of a water molecule.
What is bent?
100
A substance in which a solute is dissolved to form a solution.
What is a solvent?
100
A large compound formed from combinations of many monomers.
What is a polymer?
100
A compound with an amino group (-NH2) on one end and a carboxyl group (-COOH) on the other end.
What is an amino acid?
100
An attraction between molecules of different substances.
What is adhesion?
200
A material composed of two or more elements or compounds that are physically mixed together but not chemically combined.
What is a mixture?
200
A macromolecule made mainly from carbon and hydrogen atoms; includes fats, oils, and waxes.
What is a lipid?
200
A macromolecule containing hydrogen, oxygen, nitrogen, carbon and phosphorus.
What is a nucleic acid?
200
A compound that forms hydrogen ions (H+) in solution.
What is an acid?
200
A macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair and to make up enzymes.
What is a protein?
300
A small unit that can join together with other small units to form polymers.
What is a monomer?
300
A compound that produces hydroxide ions (OH-) in solution.
What is a base?
300
An attraction between molecules of the same substance.
What is cohesion?
300
A compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body.
What is a carbohydrate?
300
A measurement system used to indicate the concentration of hydrogen ions (H+) in solution.
What is the pH scale?
400
A mixture of water and nondissolved materials.
What is suspension?
400
A nucleic acid that contains the sugar deoxyribose?
What is deoxyribonucleic acid (DNA)?
400
A single-stranded nucleic acid that contains the sugar ribose.
What is ribonucleic acid (RNA)?
400
A mixture of two or more substances in which the molecules of the substances are evenly distributed.
What is a solution?
400
A single sugar molecule.
What is monosaccharide?
500
A molecule whose protons and electrons balance each other. (i.e. water)
What is neutral?
500
A substance that is dissolved in a solvent to make a solution.
What is a solute?
500
a weak acid or base that can react with strong acids or bases to help prevent sharp, sudden changes in pH?
What is a buffer?
500
A monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base.
What is a nucleotide?
500
A large macromolecule formed from monosaccharides.
What is a polysaccharide?
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