Lesson 2.1 Crossword


3.subunits that make up nucleic acids
6.compounds composed of a glycerol molecule with three fatty acids attached
9.a molecule made of many similar subunits
11.the DNA sequence of a human
12.a polymer of nucleotides with the bases adenosine, guanine, cytosine, and thymine; deoxyribonucleic acid
13.the main form of sugar that circulates in the blood
14.the building blocks of proteins
15.fatty molecules that dissolve poorly in water but dissolve well in a nonpolar solvent; fats and oils
16.pairs of complementary nucleic acid bases; that is, A and T or C and G


1.a long chain of amino acids
2.a hydrocarbon chain with a carboxylic acid group at one end
3.key information-carrying molecules in cells
4.proteins that speed up specific biological reactions
5.the chemical bond that links two amino acids, by connecting the amino group of one amino acid to the acid group of another
7.one of two kinds of information-carrying nucleic acids found in cells; ribonucleic acid
8.a polymer of glucose that is found in animals
10.a class of lipids whose structure is different from other lipids; cholesterol, testosterone, and estrogen are three well-known steroids
14.adenosine triphosphate; a nucleotide composed of an adenine base, a sugar, and three phosphate groups

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