Proteins and Nucleic Acids Quiz

Polymers assembled from individual monomers known as nucleotides used to store and transmit genetic information through DNA and RNA are called?

• Nucleic Acids

• Enzymes

• Amino Acids

• Proteins

Which of the following descriptions best fits the class of molecules known as nucleotides?

• a nitrogenous base, a phosphate group, and a pentose sugar

• a phosphate group and an adenine or uracil

• a nitrogenous base and a phosphate group

• a nitrogenous base and a pentose sugar

Which of the following are nitrogenous bases of the pyrimidine type?

• cytosine and uracil

• thymine and guanine

• adenine and thymine

• guanine and adenine

Which of the following are nitrogenous bases of the purine type?

• guanine and adenine

• cytosine and guanine

• thymine and uracil

• uracil and cytosine

Which of the following statements best summarizes the differences between DNA and RNA?

• DNA nucleotides contain a different sugar than RNA nucleotides

• DNA contains the base uracil, whereas RNA contains the base thymine.

• The bases in DNA form base-paired duplexes, whereas the bases in RNA do not.

• DNA encodes hereditary information, whereas RNA does not.

If one strand of a DNA molecule has the sequence of bases 5'ATTGCA3', the other complementary strand would have the sequence. (Hint: They are trying to trick you on the sequences remember the direction they travel.)

• 5'TGCAAT3'.

• 5'TAACGT3'.

• 3'UAACGU5'.

• 5'UGCAAU3'.

Which of the following pairs of base sequences could form a short stretch of a normal double helix of DNA? (Hint: Pay Attention To The Sequences And There Direction)

• 5'-ATGC-3' with 5'-GCAT-3'

• 5'-GCGC-3' with 5'-TATA-3

• 5'-AGCT-3' with 5'-TCGA-3'

• All of these pairs are correct.

Protein molecules are polymers (chains) of _____.

• amino acid molecules

• DNA molecules

• fatty acid molecules

• glucose molecules

A major difference polysaccharide and proteins is that

• polysaccharides are made of monosaccharides while proteins are made of amino acids

• plants make polysaccharides, while animals make proteins

• proteins are made of monomers, while polysaccharides are not

• proteins carry genetic information while polysaccharides do not

Which of the following is NOT a function of proteins?

• store and transmit heredity information

• help to fight diseases

• control the rate of reactions and regulate cell processes

• build tissues such as bone and muscle