Herbalism Herbal Pharmacology & Plant Constituents

Question 1

Which class of plant compounds is responsible for the astringent taste and tissue-tightening effects of herbs like witch hazel and oak bark?

Accepted Answer

Tannins

Answer

Tannins are polyphenolic compounds that bind and precipitate proteins, creating astringent effects that tighten and tone tissues.

Question 2

What type of plant constituent is berberine, the active compound found in goldenseal and barberry?

Accepted Answer

Alkaloid

Answer

Berberine is an isoquinoline alkaloid with well-documented antimicrobial and anti-inflammatory properties.

Question 3

Saponins found in herbs like licorice root and ginseng are best known for their:

Accepted Answer

Surfactant, adaptogenic, and expectorant effects

Answer

Saponins act as natural surfactants (soap-like) and many are adaptogenic, with expectorant properties that loosen mucus.

Question 4

Which constituent in milk thistle (Silybum marianum) is responsible for its hepatoprotective (liver-protecting) effects?

Accepted Answer

Silymarin

Answer

Silymarin is a group of flavonolignans found in milk thistle seeds that protect liver cells from toxins and promote hepatocyte regeneration.

Question 5

Volatile oils (essential oils) in herbs like peppermint and lavender primarily exert their effects through:

Accepted Answer

Aromatic compounds interacting with olfactory and mucous membrane receptors

Answer

Volatile oils are aromatic compounds that interact with olfactory receptors and mucous membranes, producing both local and systemic pharmacological effects.

Herbalism Practice Test

Herbalism Practice Test

Herbalism Herbal Pharmacology & Plant Constituents