Essential Oils Quiz

Which of the following parts of plants typically produce essential oils?

• Flowers

• Fruits

• Leaves

• All of the above

Essential oils are primarily composed of which of the following?

• Proteins

• Terpene derivatives and hydrocarbons

• Carbohydrates

• Lipids

Essential oils are generally insoluble in:

• Organic solvents

• Water

• Fatty oils

• Mineral oils

Which method of extraction involves using a rotating mechanical device to puncture fruit rinds?

• Hydro-distillation

• Enfleurage

• Cold Pressing (Expression)

• Solvent Extraction

Which family of essential oils is known for having fruity scents and light oils?

• Woody Family

• Citrus Family

• Floral Family

• Mint Family

Essential oils that have a deep, rich, smoky, or leather-like scent are classified under which family?

• Spice Family

• Herbaceous Family

• Resinous/Musky Family

• Camphoraceous Family

What characteristic makes essential oils different from fatty oils?

• Essential oils do not leave greasy stains

• Essential oils are highly soluble in water

• Essential oils are solid at room temperature

• Essential oils decompose when evaporated

The process of enfleurage is used when:

• Steam distillation is ineffective

• Essential oils are destroyed by heat

• The plant material is too large

• Solvent extraction is not suitable

Which classification of essential oils is based on their chemical composition?

• Citrus Family

• Floral Family

• Camphoraceous Family

• Terpenoids and Phenylpropanoids

Which of the following is NOT a reason why plants produce essential oils?

• Attracting pollinators

• Preventing dehydration

• Defense against harmful insects

• Allelopathy