quiz 8B

Question 1

CH3(C=O) COOH
to
CH3CH=O & CO2

Answer 1

lyases

Question 2

CH2OH HC=O
C=O CH OH
HCCOH CH OH
CH2OH CH2OH

Answer 2

isomerase

Question 3

CH3CH(OH) CH3
to
CH3(CH=O) CH3

Answer 3

Oxidoreductases

Question 4

phosphoglucomutase

Answer 4

isomerase

Question 5

lactic dehydrogenase

Answer 5

oxidoreductases

Question 6

phosphofructokinase

Answer 6

transferases

Question 7

maltase

Answer 7

hydrolases

Question 8

citric acid synthetase

Answer 8

ligase

Question 9

cis 2-pentene

to

trans- 2 pentene

Answer 9

isomerase

Question 10

NAD/Enzyme

Answer 10

oxidoreductases

Question 11

CH3CH2 (C=O) OCH3

to propanoic acid and methanol

Answer 11

hydrolases

Question 12

oxaloacetate and acetyl Co-A to citric acid

Answer 12

ligase

Question 13

a tripeptide to 3 seperate amino acids

Answer 13

hydrolases

Question 14

alanine transaminase

Answer 14

transferases

Question 15

glucose-6-phosphate

to

fructose-6- phosphate

Answer 15

isomerase

Question 16

acetoacetate decaroxylase

Answer 16

lyases

Question 17

which of the following protein is replaced the most often

Answer 17

enzymes

Question 18

replaced the least often

Answer 18

collagen

Question 19

a large pH change will denature a protein

which type of interaction is most affected

Answer 19

salt bridges

Question 20

which enzyme is the most specific

a. lipase
b. peptidase
c. sucrase
d. esterase

Answer 20

sucrase

Question 21

TRUE concerning plasma proteins

Answer 21

they are mainly made in the liver

Question 22

aldosterone

Answer 22

steroid hormone

Question 23

glucagon

Answer 23

protein hormone

Question 24

keratin

Answer 24

neither

Question 25

can slide right through the cell membrane

Answer 25

steroid hormone

Question 26

takes minutes to affect the cell

Answer 26

protein hormone

Question 27

chemical messagers that are produced one place in the body and affect other parts of the body

Answer 27

steroid hormone | protein hormone

Question 28

attaches to a receptor site on the outside of the target cell

Answer 28

protein hormone

Question 29

if enzymes turnover rate is very low it is very efficient

Answer 29

false

Question 30

enzymes and substrates are usually held together by disulfide bonds

Answer 30

false

Question 31

hormones and enzymes can sometimes be proteins and sometimes non-proteins

Answer 31

false

Question 32

all enzymes can be affected by substrate saturation

Answer 32

true

Question 33

doubling the concentration of the substrate will ALWAYS double the rate of reaction

Answer 33

false

Question 34

all proteins have a quaternary structure

Answer 34

false

Question 35

all enzymes are globular proteins

Answer 35

true

Question 36

proteins are most soluble at their isoelectric point

Answer 36

flase

Question 37

bacteria in milk will cause the milk to become more acidic

Answer 37

true

Question 38

denaturing with heavy metals affects the salt bridges in the globular protein

Answer 38

true

Question 39

what fibrous protein has a triple helix structure

Answer 39

collagen

Question 40

protein is found in muscle fiber

Answer 40

myosin | actin

Question 41

protein found in artery walls and ligaments

Answer 41

elastin

Question 42

found in bones and connective tissue

Answer 42

collagen

Question 43

protein in silk

Answer 43

fibroin

Question 44

what blood protein is used to transport fatty acids and to maintain osmotic pressure

Answer 44

serum albumins

Question 45

what is milk "curds" which has precipitated out

Answer 45

casein

Question 46

most abundant protein in the human body

Answer 46

collagen

Question 47

protein found in nails, hoofs, hair

Answer 47

keratin

Question 48

bacteria in milk can convert the lactose into what compound

Answer 48

lactic acid

Question 49

what vitamin is converted into NAD or NADH

Answer 49

niacin

Question 50

what vitamin is converted into coenzyme A

Answer 50

pantothenic acid

Question 51

what vitamin is converted into the FAD

Answer 51

riboflavin

Question 52

what vitamin is needed for collagen synthesis

Answer 52

vitamin C

Question 53

what vitamin is converted into TPP

Answer 53

thiamine

Question 54

scurvy is caused by the deficiency of what vitamin

Answer 54

vitamin C

Question 55

the rate at which an enzyme will convert substrates to products is called

Answer 55

turnover rate

Question 56

specific area on the enzyme where the chemical reaction takes place

Answer 56

catalytic site

Question 57

specific area on the enzyme where the substrate binds

Answer 57

contact site

Question 58

the inactive protein part (without the cofactors) of an enzyme is called

Answer 58

apoenzyme

Question 59

what is the cofactors plus the protein part called

Answer 59

holoenzyme

Question 60

what is the cofactor that is organic but not a protein called

Answer 60

coenzyme

Question 61

enzyme found in tears and saliva that kills invading bacteria

Answer 61

lysozymes