1.
What separation method is involved in the production of essential oil?
Correct Answer
A. Distillation
Explanation
Distillation is the correct answer because it is the separation method commonly used in the production of essential oils. Distillation involves heating a liquid mixture to create vapor, which is then cooled and condensed to separate the desired components. In the case of essential oils, the plant material is usually steam distilled, where steam is passed through the plant material to extract the volatile oils. This method allows for the separation of the essential oil from the other components of the plant material.
2.
Which of these process is not important in the production of essential oils?
Correct Answer
C. Oil embedding
Explanation
Oil embedding is not important in the production of essential oils. Solvent extraction and expression are common methods used to extract essential oils from plants. Wax embedding is a technique used in histology, not in the production of essential oils.
3.
Which of these is not produced from essential oils?
Correct Answer
D. Lubricating oil
Explanation
Lubricating oil is not produced from essential oils. Essential oils are natural oils extracted from plants and are commonly used in perfumes, food additives, and soaps. However, lubricating oil is typically derived from petroleum or synthetic sources and does not involve essential oils in its production.
4.
Which of these therapies involves essential oils?
Correct Answer
C. Aromatherapy
Explanation
Aromatherapy involves the use of essential oils, which are derived from plants and have various therapeutic properties. These oils are typically inhaled or applied topically to promote physical and emotional well-being. Adlerian therapy focuses on exploring an individual's lifestyle and personal history to gain insight into their current behavior. Humanistic therapy emphasizes personal growth and self-actualization. Gestalt therapy focuses on the present moment and the individual's experience in the here and now. Therefore, the correct answer is Aromatherapy.
5.
Which of these can not be due to improper use of essential oils?
Correct Answer
B. Neurodegeneration
Explanation
Neurodegeneration is a condition characterized by the progressive degeneration of nerve cells in the brain or spinal cord. It is not typically caused by the improper use of essential oils. Skin irritation, allergy, and nausea, on the other hand, can be potential side effects of essential oil use if they are used improperly or in excessive amounts.
6.
Which of these is irrelevant in the pharmacology of essential oils?
Correct Answer
D. Method of preparation
Explanation
In the pharmacology of essential oils, the method of preparation is irrelevant because it does not affect the chemical composition or therapeutic properties of the oil. The dosage, potency, and route of administration are all important factors that can influence the efficacy and safety of essential oils. However, the method of preparation, such as distillation or cold pressing, does not impact the pharmacological properties of the oil once it has been obtained.
7.
Which of these essential oils can cause contact dermatitis?
Correct Answer
A. Tea tree oil
Explanation
Tea tree oil can cause contact dermatitis because it contains a compound called terpinen-4-ol, which is known to be a skin irritant. When applied directly to the skin, tea tree oil can cause redness, itching, and inflammation, leading to contact dermatitis. It is important to dilute tea tree oil before using it topically and to do a patch test to check for any allergic reactions.
8.
Which of these is a good solvent for essential oils?
Correct Answer
C. Ethanol
Explanation
Ethanol is a good solvent for essential oils because it has the ability to dissolve the non-polar compounds found in essential oils. Essential oils are made up of volatile aromatic compounds that are not soluble in water. Ethanol, being a polar solvent, can dissolve these compounds and create a solution that is suitable for various applications such as perfumes, aromatherapy, and medicinal purposes.
9.
What is the most desirable quality of essential oils?
Correct Answer
B. Scent
Explanation
The most desirable quality of essential oils is their scent. Essential oils are known for their aromatic properties and are commonly used in aromatherapy for their pleasant and therapeutic fragrances. The scent of essential oils can have a calming or invigorating effect on the mind and body, and can be used to promote relaxation, relieve stress, and improve overall well-being. Additionally, the scent of essential oils can also be used to enhance the fragrance of personal care products, perfumes, and household cleaners.
10.
Which of these cam be used to extract essential oils?
Correct Answer
B. Florasol
Explanation
Florasol can be used to extract essential oils. Florasol is a solvent that is commonly used in the extraction process. It is a mixture of hydrocarbons that can dissolve the essential oils from plant material. The plant material is soaked or immersed in Florasol, and the solvent helps to extract the oils. Once the oils are extracted, the Florasol can be evaporated, leaving behind the concentrated essential oils.