Ap Bio Vocab Ch 5

Front 1

Monomer

Back 1

A molecule that can be bonded to other identical molecules to form a polymer.

Front 2

RNA

Back 2

Ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins.

Front 3

Nucleotide

Back 3

A compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic components of nucleic acids.

Front 4

Fatty Acids

Back 4

A carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, to form the components of a lipid.

Front 5

Cholesterol

Back 5

A compound of the sterol type found in most body tissues, including the blood and the nerves. Cholesterol is an important constituent of cell membranes and precursors of other steroid compounds.

Front 6

Polysaccharide

Back 6

A carbohydrate whose molecules consist of a number of sugar molecules bonded together.

Front 7

Nucleic Acid

Back 7

A complex organic substance present in living cells, whose molecules consist of many nucleotides linked in a long chain. Examples DNA and RNA.

Front 8

Disaccharide

Back 8

Any of a class of sugars whose molecules contain two monosaccharide.

Front 9

Lipid

Back 9

Any of a class of organic compounds that are fatty acids and are insoluble in water.

Front 10

Pyrimidine

Back 10

A heterocyclic aromatic organic compound, containing two nitrogen atoms at positions 1 and 3 of the six-member ring.

Front 11

Cellulose

Back 11

An insoluble substance that is the main constituent of plant cell walls and of vegetable fibers such as cotton. It is a polysaccharide consisting of chains of glucose monomers.

Front 12

Purine

Back 12

A purine is a heterocyclic aromatic organic compound, consisting of a pyrimidine ring fused to an imidazole ring.