WorksheetsSTT3122_Quiz1
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
To obtain flavonoid aglycones compounds the extraction process must undergo acid ………….
a)
polymerization
b)
hydrolisis
c)
synthesis
d)
denaturization
2.
Select which of the following is a non-polar solvent.
a)
80 % methanol
b)
100% ethanol
c)
50% buthanol
d)
Chloroform
3.
Most of the secondary metabolities in plants are stored in ...........................
a)
endoplasmic reticulum
b)
mitochondria
c)
vacuole
d)
ribosome
4.
When you are doing the two-dimensional chromatography experiment of flavonoid glycoside compound the following compounds will NOT be visible on the chromatogram EXCEPT
a)
Quercetin glycoside
b)
Luteolin glycoside
c)
Anthocyanins glycoside
d)
Apigenin glycoside
5.
Which of the following compounds are considered as universal flavonoid in vascular plant?
I. Aurone
II. Chalcone
III. Flavones
IV. Flavonol
I. Aurone
II. Chalcone
III. Flavones
IV. Flavonol
a)
III & IV
b)
I & II
c)
II & III
d)
All above
6.
If you are requested to investigate the spot of the flavonoid compound on a chromatogram which of the flowing equipment should you use?
a)
UV light detector
b)
Gas Chromatography Mass Spectrum
c)
UV spectrophotometer
d)
IR spectrophotometer
7.
Upon invasion by microbes, plant will produce _____ for repellence of the organism.
a)
Antioxidant
b)
anti-allergy
c)
phytoalexin
d)
anthocyanins
8.
The translocation of ring B to number 2,3 or 4 carbon will give________ .
a)
Flavonol
b)
Flavonone
c)
Isoflavones
d)
Anthocyanins
9.
Which below is the nitrogen containing secondary metabolites?
a)
Saponins
b)
Glucosinolates
c)
Polyketides
d)
Diterpene
10.
Listed below are hexose sugars EXCEPT:
a)
Glucose
b)
Rhamnose
c)
Xylose
d)
Galactose
100 %
