82) Which of the following is unique to RNA?

A) glucose

B) phosphate group

C) ribose

D) adenosine triphosphate

E) deoxyribose

83) The nucleic acid DNA

A) is double stranded.

B) contains uracil in place of thymine.

C) contains the pentose ribose.

D) contains protein bases.

E) synthesizes lipids.

84) The molecule DNA contains the unique five-carbon sugar ________.

A) ribose

B) pentose

C) deoxyribose

D) sucrose

E) fructose

85) Which nitrogenous base is unique to RNA molecules?

A) uracil

B) cytosine

C) adenine

D) guanine

E) thymine

86) A bond between a phosphate group and a sugar can be found linking together

A) two simple sugars.

B) one amino acid to an amino group of another.

C) two nucleotides.

D) a fatty acid and a glycerol molecule.

E) a cholesterol molecule and a fatty-acid molecule.

87) A DNA nucleotide specifically consists of

A) a five-carbon sugar and a phosphate group.

B) a five-carbon sugar and a nitrogen base.

C) a ribose sugar, a nitrogenous base, and a phosphate group.

D) a deoxyribose sugar, a nitrogenous base, and a phosphate group.

E) a five-carbon sugar and an amino acid.

88) According to the rules of complementary base pairing, a nucleotide containing the base cytosine would only pair with a nucleotide containing the base

A) thymine.

B) adenine.

C) uracil.

D) cytosine.

E) guanine.

89) A(n) ________ bond is a covalent bond that stores an unusually large capacity to perform work.

A) high-energy

B) polar covalent

C) ionic

D) electrically neutral

E) peptide

90) The hydrolysis of ATP yields the molecule ________.

A) adenine

B) phospholipid

C) ribose

D) thymine

E) adenosine diphosphate

91) Choose the correct pairing of macromolecule type to its function.

A) lipid – manufactures proteins

B) DNA – controls reaction rates

C) carbohydrate – major source of energy

D) protein – comprises majority of membrane structure

E) RNA – determines our inherited characteristics