Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Medicinal chemistry > Mevalonate 4 > Flashcards

Mevalonate 4 Flashcards

1
Q

tetraterpene skeleton that is involve in tail to tail coupling of 2 molecules of geranylgerany diphosphate

A

phytoene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

cyclopropyl compound that is intermediate in the formation tetraterpene

A

prephytoene diphosphate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

widely distributed in lipid soluble pigments- lipochromic pigments

A

carotenoids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

2 functions of carotenoids in plants

A

accessory pigments

coloring matters in flowers and fruits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

extends the range of light absorbed by the photosynthetic apparatus

A

accessory light harvesting pigments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

2 groups of carotenoids

A

simple unsaturated hydrocarbon

xanthophylls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

long chain of 8 isoprene units giving a conjugated alternate double bond

A

simple unsaturated hydrocarbon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

characteristic carotenoid pigment in ripe tomato fruit

A

simple unsaturated hydrocarbon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

sci name of tomato

A

lycopersicon esculente/esculentum solanaceae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

cyclization of simple unsaturated hydrocarbon at both ends gives

A

beta carotene - bicyclic HC

beta carotene isomers - alpha and epsilon carotene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

gives the characteristic of color of carrots

A

beta carotene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

sci name of carrots

A

daucus carota apiaceae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

important antioxidant in human against some form of cancer

A

beta carotene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

has beta ring at one end and epsilon ring at the other

A

alpha carotene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

carotenoids lacking of symmetry

A

alpha carotene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

precursor of beta carotene

A

gamma carotene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

precursor of alpha carotene

A

delta carotene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

oxygenated derivatives of carotenes

A

xanthophyll

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

classification of xanthophyll

A 
hydroxylated carotenoids
methoxylated carotenoids
oxocarotenoids
epoxycarotenoids
carboxycarotenoids
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

examples of hyroxylated carotenoid

A

cryptoxanthin
lutein
zeaxanthin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

carotenoid pigment with vitamin a activity

A

cryptoxanthin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

isolated from petals and berries of physalis sp

A

cryptoxanthin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

widespread carotenoid alcohols in nature

A

lutein

zeaxanthin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

compounds represented by tetraterpenes

A

carotenoids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
lutein is isolated from
egg yolk
26
sci name of nettles
Urtica dioca l urticaceae
27
pigment of yellow corn zea mays l gramiaceae
zeaxanthin
28
sci name of yellow corn
zea mays l gramiaceae
29
2 carotenoids that do not posses vit a
lutein | zeaxanthin
30
example of methoxylated carotenoids
rhodovibrin
31
example of oxocarotenoids
rhodoxanthin | capsanthin
32
carotenoid pigment from paprika
capsanthin
33
sci name of paprika
Capsicum annuum L. Solanaceae
34
responsible for brilliant red pigment of peppers
capsanthin
35
rhodoxanthin aka
retrodehydro beta carotene
36
isolated from arils of Taxus baccata L. taxaceae
rhodoxanthin
37
rhodoxanthin occurs in the feathers of bird of
Phoenicircus nigricollis | Megaloprepria magnifica
38
exist as 5,6 and 5,8 epoxides
epoxycarotenoids
39
examples of epoxycarotenoid
violaxanthin luteochromes flavoxanthin
40
contain 5,6 epoxides
violaxanthin
41
isolated from yellow pansies
violaxanthin
42
sci name for yellow pansies
Viola tricolor
43
isolated from Ranunculus acris L. Ranunculaceae
flavoxanthin
44
contains 5, 8 epoxides
flavoxanthin
45
luteochrome aka
beta beta carotene diepoxide
46
epoxycarotenoid that contains 5,6 and 5,8 epoxides
luteochrome
47
isolated from tubers of white variety of sweet potato
luteochrome
48
sci name of sweet potato
ipomea batatas lam.
49
carotenoids with no ring structure
carboxycarotenoids
50
carboxylated carotenoids
carboxycarotenoids
51
examples of carboxycarotenoids
bixin | crocetin
52
carotenoid carboxylic acid
bixin
53
bixin is isolated from the seeds of
bixa orellana L. bixaceae
54
trans form of bixin
isobixin
55
isobixin is isolated from
Aristolochia cymbifera Mart. Aristolochiaceae
56
bixin is used as
natural food colorant
57
carotenoid dicarboxylic acid
crocetin
58
crocetin is isolated from
Crocus sativus L Crocus albiflorus var neapolitanus Hort Crocus luteus Lam. family iridaceae
59
carotenoid metabolites
vitamin a and its analogues | abscisic acid
60
rich sources of vitamin a
cod liver oil | halibut liver oil
61
vitamin a1 aka
retinol
62
vitamin a2 aka
dehydroretinol
63
where is carotenoid converted into vit a
liver
64
functions of vitamin a
role in vision control animal growth regulate cell differentiation, embroyin development, growth and vision
65
red visual pigment that is light sensitive
rhodopsin
66
vitamin a forms with opsin via
schiff base linkage
67
light sensitivity involves conversion of what
cis retinal portion to all trans form
68
protein in the mambrane of the rod photoreceptor cell in the retina of the eye
rhodopsin
69
catalyses the light sensitive step in vision
rhodopsin
70
what lies in the pocket of rhodopsin
11 cis retinal chromophore
71
derived from mammals by oxidative metabolism of beta carotene
retinol
72
beta carotene catalyzed by oxygen dependentdioxygenase producing then reduction of this results to
aldehyde | alcohol- retinol
73
a polyene that is a powerful absorber of light
11 cis retinal
74
2 types of cleavage of beta carotene to retinol
central cleavage | excentric cleavage
75
cleavge that occurs in the central double bond and it is the conversion of beta carotene into 2 molecules of retinol
central cleavage
76
cleavge that occurs at the other bonds
excentric cleavage
77
analogue of retinol containing cyclohexadiene ring system
dehydroretinol
78
dehydroretinol combines with opsin to form
porphyropsin
79
derrivatives of retinol that acts as steroid hormones
retinoids
80
tretinoin aka
retinoic acid
81
isotretinoin aka
13 cis retinoic acid
82
retinoids used for acne vulgaris
tretinoin and isotretinoin
83
aromatic analogues of vitamin a
acitretin | etretinate
84
relief for psoriasis
acitretin | etretinate
85
plant growth regulator
abscisic acid
86
major precursor of abscisic acid
trans violaxanthin
87
5 higher terpenoids
``` gutta c400 to 40000 rubber 1000 to 100k isoprene units menaquinones C65 plastoquinones c45 ubiquinones c40 to 50 ```
88
sci name of rubber tree
hevea brasiliensis euphorbiaceae
89
posses an extend array of cis double bond
rubber
90
sci name of gutta percha
palaquium gutta sapotaceae
91
gutta percha has what kind of double bond
trans

Medicinal chemistry (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions