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Questions and Answers
What term is used to describe materials that were considered safe and used as food?
What term is used to describe materials that were considered safe and used as food?
- Beneficial materials (correct)
- Toxic materials
- Nutritional substances
- Harmful substances
All observed effects of materials are considered harmful.
All observed effects of materials are considered harmful.
False (B)
What factors determine how the materials were used in treating symptoms or diseases?
What factors determine how the materials were used in treating symptoms or diseases?
The observed effects of the materials.
If he observed other effects, they were considered __________.
If he observed other effects, they were considered __________.
Match the following descriptions with their corresponding terms:
Match the following descriptions with their corresponding terms:
Which of the following civilizations is NOT mentioned as using plants medicinally?
Which of the following civilizations is NOT mentioned as using plants medicinally?
Plants were used medicinally in Egypt before the Christian era.
Plants were used medicinally in Egypt before the Christian era.
Name one of the four civilizations that used plants for medicinal purposes.
Name one of the four civilizations that used plants for medicinal purposes.
Plants were used medicinally in _____ and Greece long before the Christian era.
Plants were used medicinally in _____ and Greece long before the Christian era.
Match the following ancient civilizations with their known use of plants:
Match the following ancient civilizations with their known use of plants:
What term is used to describe substances produced by living cells?
What term is used to describe substances produced by living cells?
Synthetic compounds occur naturally in the environment.
Synthetic compounds occur naturally in the environment.
What is an example of a natural source that undergoes slight chemical modification for improved properties?
What is an example of a natural source that undergoes slight chemical modification for improved properties?
____________ do not occur in nature.
____________ do not occur in nature.
Match the following terms with their descriptions:
Match the following terms with their descriptions:
Which of the following is an example of a natural substance used for biological activity?
Which of the following is an example of a natural substance used for biological activity?
Gums and resins can be considered natural substances of biological origin.
Gums and resins can be considered natural substances of biological origin.
Name one type of natural substance that has a biological activity.
Name one type of natural substance that has a biological activity.
Cortisone is an example of a __________ hormone.
Cortisone is an example of a __________ hormone.
Match the following types of substances with their examples:
Match the following types of substances with their examples:
Which of the following is a natural red dye obtained from an entire insect?
Which of the following is a natural red dye obtained from an entire insect?
Talc/chalk is classified as a plant organ.
Talc/chalk is classified as a plant organ.
What is the term for the edible substance obtained from the latex of plants?
What is the term for the edible substance obtained from the latex of plants?
Beeswax is classified as a __________.
Beeswax is classified as a __________.
Match the following plant organs with their respective uses:
Match the following plant organs with their respective uses:
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Study Notes
Natural Products
- Substances produced by living cells are natural products.
- Synthetic compounds do not occur in nature.
- Natural Products can undergo slight chemical modifications to improve their solubility, absorbance, or biological activity.
Natural Products in Medicine
- Plants were used medicinally in China, India, Egypt, and Greece long before the beginning of the Christian era.
Natural Product Origins
- Natural products can be of plant or animal origin.
- Natural products possess pharmacological properties and therapeutic actions.
- Natural products have undergone only the processes of harvesting and basic processing.
Examples of Natural Products from Various Sources
- Plant sources:
- Clove bud: Plant organ
- Senna leaf: Plant organ
- Mentha: Entire plant
- Cinnamon bark: Plant organ
- Animal sources:
- Cochineal: Entire insect (Used as a natural red dye)
- Gelatin from animals
- Mineral sources:
- Talc/Chalk
- Other natural products:
- Opium (Latex)
- Beeswax
- Gum
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