Which of the following are TRUE statements about proteins ?

Question

Which of the following are TRUE statements about proteins ?

a) The shape and function of a protein is determined only by the different types of amino acids that make up the chain.
The order they appear in is not a factor

b) The sequence of amino acids that make up a protein are known as the primary structure of the protein

c) Proteins are long complex molecules that have no regular structure. Even the presence of hydrogen bonds is not enough to introduce structure

d) The secondary structure of a single protein molecule is created by hydrogen bonds between an amine group and a lone pair of electrons on an oxygen molecule, both part of the peptide bond

e) One type of tertiary structure found in proteins is α-helix

f) The structrure of a protein that results from a combination of covalent and noncovalent bonds between the side chains of the different amino acids is called the tertiary stucture

Answer 1

a) False
b) True
c) False
d) True
e) False, that is secondary structure
f) True

Answer 2

a is faulty, because the order of the amino acids is severe. b is ideal. the well-known structure of a protein IS the sequence of amino acids. c is ideal with limits. some proteins (yet no longer all) have areas of sure secondary structure that's stabilized by hydrogen bonding. d is faulty because the tertiary structure of a protein is determined by particularly some different kinds of interactions, no longer purely hydrogen bonding. e is faulty, because an alpha helix is a kind of secondary structure, no longer tertiary. f is faulty (see d)

Answer 3

b. True
d. True
f. True. Disulfide bonds, -S-S- between two adjacent cysteines to make a cystine.

Answer 4

bdf