1. The sequence of amino acids is the __________ structure of proteins.
a. primary
b. secondary
c. tertiary
d. quaternary
e. stereo
2. The secondary structure of proteins can be
a. helical.
b. sheet like.
c. globular.
d. the sequence of amino acids.
e. both helical and sheet like.
3. When a hen's egg is cooked for breakfast, which of the following statements does not apply?
a. High temperature breaks the hydrogen bonds.
b. Gentle cooling will reverse the denaturation that has occurred.
c. The covalent bonds are not broken.
d. Denaturation has resulted in a change from "runny" to "semi-solid."
4. Which of the following is NOT found in every nucleic acid?
a. ribose
b. phosphate group
c. purine
d. pyrimidine
e. all of these are characteristic of every nucleotide
5. Nucleotides contain what kind of sugars?
a. three-carbon
b. four-carbon
c. five-carbon
d. six-carbon
e. seven-carbon