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Which of the following is the structure of the flavonoids of Silybum marianum?

• Flavonolignan

• .Isoflavanonediglycoside

• Monomeric flavon-3-o

• Dimeric flavan-3,4-diol

• A simple flavanonol-glycoside

Which of the following is the way to detect procyanidins?

• When heated with cc. HCl, procyanidins give a red colour. On extraction of the mixture with nBuOH, the butanolic phase turns red

• Procyanidins give a yellow colour with concentrated nitric acid

• When heated with dilute NaOH, procyanidins give a green colour

• When heated with resorcinol, procyanidins give a bluish-violet colour

Which of the following statements relating to the traditional herbal medicinal products is false?

• Their authorization is possible via abridged registration

• They contain one or more herbal substances, preparations or their combination as active agents.

• Attributing a preventive or curative effect to these products is forbidden

• They can be distributed in pharmacies

Which of the following is the advantage of collecting medical herbs from their natural habitat?

• The properties of the plants can be modified by cross-breeding

• The whole process (culturing, harvesting, etc.) can be controlled

• No culturing costs are involved

• The appropriate harvesting and quality can be guaranteed

As defined by the European Pharmacopoeia, which of the following are herbal drugs?

• Mainly unprocessed, whole or ground plants, algae, fungi or lichen, which are particularly used after drying or sometimes in the fresh state

• Plant species used as therapeutic agents to influence the functions of the human body

• Generally herbal products, prepared by different methods such as extraction, distillation, extrusion, fractionation, concentration or fermentation

• Processed plants, plant or animal parts that are mainly used in the fresh state, or sometimes after drying

Which of the following chromatographic techniques always use forced flow?

• Rotation planar chromatography

• Ion-exchange chromatography

• Thin-layer chromatography

• Gel-filtration chromatography

Which of the following compounds are C-glycosides

• gentiopicrine

• hypericine

• aloin

• vitexin

Emodine is active constituent of

• Rheum Palmatum, Cassia acutifolia

• Rheum Palmatum

• Claviceps purpurea, Cassia acutifolia

• Cassia acutifolia

Amentoflavone is of wide distribution, e.g. species of Gingko, Hypericum and Rhus classified as

• Flavonoid

• Bioflavonoid

• Isoflavonoid

Mucilage shows color reaction with ruthenium red

• Green

• Yellow

• Pink

• Blue