PROTEINS

Question 1

class of protein

Answer 1

structural
contractile,
transport
hormones,
enzymes,
protection,
storage

Question 2

in tendons and cartilage

Answer 2

collagen

Question 3

in hair, skin, wool and nails

Answer 3

keratin

Question 4

contract muscle fibers

Answer 4

myosin and actin

Question 5

transports oxygen

Answer 5

hemoglobin

Question 6

transport lipids

Answer 6

lipoproteins

Question 7

stores protein in milk

Answer 7

casein

Question 8

stores iron in the spleen and liver

Answer 8

ferritin

Question 9

regulates blood glucose level

Answer 9

insulin

Question 10

regulates body growth

Answer 10

growth hormone

Question 11

catalyze the hydrolysis of sucrose

Answer 11

sucrase

Question 12

catalyze the hydrolysis of proteins

Answer 12

trypsin

Question 13

stimulates the immune response

Answer 13

immunoglobulin

Question 14

with hydrocarbon
side chains (hydrophobic)

Answer 14

nonpolar

Question 15

with polar
or ionic side chains
(hydrophilic)

Answer 15

▪ polar (neutral)

Question 16

with acidic
side chains (hydrophilic)

Answer 16

polar (acidic)

Question 17

with –NH2 side chains
(hydrophilic)

Answer 17

polar (basic)

Question 18

has an R group that is H, an alkyl group, or aromatic.

Answer 18

nonpolar amino acid

Question 19

has an R group that is an alcohol, thiol, or amide.

Answer 19

polar amino acid

Question 20

An amino acid is _____ with a carboxyl R group (COO–)

Answer 20

acidic

Question 21

An amino acid is _____ basic with an amino R group (NH3+)

Answer 21

basic

Question 22

linking NH2 of 1 amino acid to
- COOH of another
- C–N bond

Answer 22

Peptide bonds: dehydration synthesis

Question 23

an amide bond (amide bond) is a covalent
chemical bond formed between two amino acid molecules.

Answer 23

peptide bond