Chapter 5

Front 1

which if the following is a function of proteins

Back 1

defense

metabolic regulation

transport

catalysis

Front 2

the term protein refers to amino acid plymers with greater than____ amino acids

Back 2

50

Front 3

which of the following is a non standard amino acid

Back 3

5-hydroxyproline

Front 4

which of the following is a heterocyclic amino acid

Back 4

proline

Front 5

which of the following is not a class of amino acid

Back 5

asymmetric

Front 6

which of the following amino acids lacks a center of symmetry

Back 6

glycine

Front 7

the amino acid sequence of a peptide is reffered to as ____ structure

Back 7

primary

Front 8

the overall three-dimensional structure of a polypeptide is reffered to as ____ structure

Back 8

tertiary structure

Front 9

invariant amino acids in a protien is presumed

Back 9

to be essential to the strcuture and function of the protein

Front 10

B-pleated sheets are associated with what level of protein structure

Back 10

secondary

Front 11

which of the following amino acids would foster an a-helix

Back 11

alanine

Front 12

the greek key is associated with which of the following

Back 12

antiparallel B-pleated sheets

Front 13

which of the following interactions do not stabilize tertiary structure

Back 13

none of the above

Front 14

detergents denature proteins by disrupting which of the following

Back 14

hydrophobic interactions

Front 15

fibrous proteins typically have large amounts of

Back 15

a-helix and B-pleated sheets

Front 16

the identity and arrangement of amino acids on the surface of a globular protein are important because they may

Back 16

all of the above are correct

Front 17

which if the following statements regarding cooperative binding is true

Back 17

the binding of one ligand aids the binding of a second ligand

Front 18

Which of the following statements is true of the bohr effect

Back 18

oxygen is delivered to cells in proportion to their needs

Front 19

a polypeptide has high pI value. Which of the following amino acids are likely to be present

Back 19

argenine

Front 20

structural proteins freeze large amounts of water which of the following interactions is not likely to be involved in the binding of water

Back 20

disulfide bridges

Front 21

why is the peptide bond stronger than the ester bond

Back 21

resonance stabilization of the amide bond

Front 22

which of the following amino acids would be classified as a nonstandard amino acid

Back 22

cytine

Front 23

colagen is classified as which of the following types of protein

Back 23

structural

Front 24

a prosthetic group is a

Back 24

a group that generates the native form of a protein

Front 25

the major component of the dry weight of cells is

Back 25

protein

Front 26

the total number of proteis that can be produced from any 10 amino acids is

Back 26

20^10

Front 27

schiff base are also reffered to as

Back 27

aldimines

Front 28

which of the following amino acids would be found in a B-turn

Back 28

proline

Front 29

which of the following is not a function of IUPs

Back 29

oxygen transport

Front 30

the source of energy for motor proteins in addition to ATP is

Back 30

GTP

Front 31

Kratin is classified as which of the following types of protein

Back 31

structural proteins

Front 32

in which of the following mechanical properties does spider silk exceed all synthetic fibers

Back 32

all of the above

Front 33

which of the following is a hygrophobic amino acid

Back 33

lysine and phenylalanine

Front 34

a conjugate protein consists of a simple protien combined with a ____

Back 34

prostheric group

Front 35

which of the following amino acids is not one of the twenty standard amino acids

Back 35

cystine

Front 36

how many standard amino acids are there

Back 36

20

Front 37

how many octapeptides containing only two amino acids are possible

Back 37

256

Front 38

amno acid polymers with a molecular weight between several thousand and several million daltons are called

Back 38

proteins

Front 39

which of the following is not a function of protiens

Back 39

all of the above are functions of proteins

Front 40

which of the following us a polar amino acid

Back 40

tyrosine