Alkaloids & tannins

Which of the following plant constituents can be

characterized by irreversible complexation with

proteins?

• Alkaloids

• Saponins

• Tannins

• Mucilages

Hide powder is used in the traditional method of tannin

quantitation because ...

• hide powder oxidizes polyphenols.

• hide powder reacts with tannins.

• hide powder reduces tannins.

• hide powder reacts with polyphenols.

Gall is...

• Abnormal cell proliferation in plant tissues

• A dried pulpy substance obtained from the bark of the oak tree

• The flower stalk of the oak tree

• Dried sap obtained from the trunk of the oak tree

What is the medical use of Hamamelidis folium?

• expectorant

• Choleretic

• antihaemorrhoid

• Sedative

What is the medical use of Alchemillae herba?

• Expectorant

• Eczema

• Laxative

• Sedative

Which of the following is the skeleton of Cinchona alkaloids?

• Cevan

• Tropane

• Isoquinoline

• Rubanol

Ergot is the......................of the fungus Claviceps purpurea.

• dried sclerotium

• vegetative form

• conidiospore

• ascospore

Which of the following is the common skeleton of physiologically active ergoline alkaloids?

• Isolysergic acid

• Lysergic acid

•   Elimoclavine

• Clavorubine

Which one of the compounds is characteristic to Rauwolfiae radix?

• physostigmine

• reserpine

• quinidine

• capsaicin

Which of the following plants served as starting material for the development of cytostatic medicines?

• Catharanthus roseus - Taxus brevifolia

• Veratrum album - Helleborus niger

• Catharanthus roseus - Helleborus niger

• Taxus brevifolia - Veratrum album