PROTEINS

Question 1

are naturally occurring UNBRANCHED POLYMER in which the monomer units are amino acids

Answer 1

proteins

Question 2

is a PEPTIDE in which at least 40 amino acid residues are present

Answer 2

proteins

Question 3

is an amino acid in which the amino group and the carboxyl group are ATTACHED TO THE A-CARBON ATOM

Answer 3

a-amino acid

Question 4

the BUILDING BLOCK OF PROTEINS

Answer 4

amino acid

Question 5

an amino acid that contains ONE AMINO GROUP, ONE CARBOXYL GROUP, AND A NONPOLAR SIDE CHAIN

Answer 5

nonpolar amino acid

Question 6

is an amino acid that contains ONE AMINO GROUP, ONE CARBOXYL GROUP, AND A SIDE CHAIN THAT IS POLAR BUT NEUTRAL

Answer 6

polar neutral amino acid

Question 7

is an amino acid that contains TWO AMINO GROUPS AND ONE CARBOXYL GROUP, the second amino group being part of the side chain

Answer 7

polar basic amino acid

Question 8

is an amino acid that contains ONE AMINO GROUP AND TWO CARBOXYL GROUPS, the second carboxyl group being part of the side chain

Answer 8

polar acidic amino acid

Question 9

is a standard amino acid NEEDED FOR PROTEIN SYNTHESIS that must be obtained from dietary sources

Answer 9

essential amino acid

Question 10

it is SYNTHESIZED BY THE BODY

Answer 10

non-essential amino acid

Question 11

occurs in people who have a SEVERE PROTEIN DEFICIENCY

Answer 11

kwashiorkor

Question 12

symptoms of kwashiorkor

Answer 12

inability to grow or gain weight, edema, stomach bulging

Question 13

occurs more often in YOUNG CHILDREN AND BABIES. It leads to dehydration and weight loss

Answer 13

marasmus

Question 14

symptoms of marasmus

Answer 14

weight loss, dehydration, stomach shrinkage

Question 15

found in CELL WALLS OF MANY BACTERIA

Answer 15

d-glutamic acid

Question 16

found in EARTHWORMS

Answer 16

d-serine

Question 17

one of the NEUROTRANSMITTERS in the brain

Answer 17

GABA

Question 18

a constituent of the VITAMIN PANTOTHENIC ACID

Answer 18

b-alanine

Question 19

means DOUBLE ION is a molecule that has a POSTIVE CHARGE ON ONE ATOM and a negative charge on another atom

Answer 19

zwitterion

Question 20

the pH at which AN AMINO ACID EXISTS primarily in its zwitterion form

Answer 20

isoelectric point

Question 21

a covalent bond between THE CARBOXYL GROUP OF ONE AMINO ACID and the amino group of another amino acid

Answer 21

peptide bond

Question 22

is an UNBRANCHED CHAIN OF AMINO ACIDS, each joined to the next by a peptide bond

Answer 22

peptide

Question 23

regulates UTERINE CONTRACTION AND LACTATION, plays a role in stimulating the flow of milk in a nursing mother

Answer 23

oxytocin

Question 24

regulates the EXCRETION OF WATER by the kidneys

Answer 24

vasopressin

Question 25

THE STRONGEST BOND

Answer 25

peptide bond

Question 26

a COVALENT BOND BETWEEN 2 SULFUR

Answer 26

disulfide bond

Question 27

result from the attraction of ELECTRONEGATIVE ATOMS IN THE PROTEIN MOLECULE

Answer 27

hydrogen bond

Question 28

formed between groups which are POSITIVELY AND NEGATIVELY CHARGED

Answer 28

ionic bond

Question 29

formed by AMINO ACIDS LIKE LECUINE, VALINE, PHENYLALANINE forming a MICELLE

Answer 29

hydrophobic bond

Question 30

is a protein in which only ONE PEPTIDE CHAIN IS PRESENT

Answer 30

monomeric protein

Question 31

is a protein in which MORE THAN ONE PEPTIDE CHAIN is present

Answer 31

multimeric protein

Question 32

a protein in which ONLY AMINO ACID RESIDUES are present

Answer 32

simple protein

Question 33

is a protein that has ONE OR MORE NON-AMINO ACID ENTITIES PRESENT in its structure in addition to one or more peptide chains

Answer 33

conjugated protein