37 Questions
What is the main goal of the lecture?
To acquire knowledge concerning cytology, physiology, and taxonomy of medicinal leafy plants
The lecture is taught by Dr. Mayada El-Ayouty, a professor of pharmacology.
False
What is the title of the lecture?
Introduction
The lecture is part of the PG _____ course.
101
Match the following concepts with their corresponding descriptions:
Cytology = Study of cells Physiology = Study of the functions of living organisms Taxonomy = Study of classification of living organisms Pharmacology = Study of the effects of drugs on living organisms
How many species of plants are known?
Over 325,000
All medicinal plants have been discovered.
False
What is the basis of classification for plants based on their habit of body appearance?
Their habit of body appearance
Plants with single usually elongated stem are classified as ____________________.
trees
What is NOT a characteristic used to classify plants?
Climate zone
Match the following plant classifications with their definitions:
Trees = Woody plants with single usually elongated stem. Shrubs = Low usually several stemmed woody plant. Herbs = Plants with soft or succulent stem.
Plants have different characteristics with similar sizes.
False
What is the term for plants that have a recognized medicinal use and have similar properties as conventional drugs?
medicinal plants
What is the title of the program mentioned in the content?
PharmDD Program
The year 2023 is mentioned in the content.
True
What is the title of the book mentioned in the content?
Trease and Evans' pharmacognosy
Vascular plants with seed are also known as ___________________.
vascular plants
What is the name of the authors mentioned in the content?
All of the above
The content mentions a type of plant called 'Medicinal Plants'.
False
The book 'Tropical Horticulture' is edited by ___________________.
Bose, T.K., Kabir, J., Das, P., and Joy, P.P.
Match the following authors with their book titles:
Joy, P.P. and Thomas, J. = Medicinal Plants Evans, W.C. = Trease and Evans' pharmacognosy Bose, T.K. and Kabir, J. = Tropical Horticulture
What is the scope of pharmacognosy?
Studying crude drugs and their natural derivatives
Pharmacognosists are responsible for evaluating the quality of synthetic medicines.
False
What are medicinal plants used for?
medicinal purposes
Pharmacognosy involves the study of crude drugs and their natural derivatives, including the study of their ______________________.
history
Match the following tasks with what pharmacognosists do:
Isolation & characterization = active constituents Characterization of the pharmacology = crude extracts & active constituents Evaluation of quality = natural medicines
What is an example of a natural derivative mentioned in the text?
Digitoxin
Pharmacognosists only study the pharmacology of synthetic medicines.
False
What part of the plant is used for medicinal purposes?
seeds, berries, roots, leaves, bark, or flowers
What does the Greek word 'Pharmakon' mean?
Drug
Pharmacognosy deals with the study of synthetic medicines.
False
What does Pharmacognosy involve the study of?
structural, physical, chemical and biochemical characters of natural drugs of plant and animal origin
Pharmacognosy requires knowledge of ______________________ and other disciplines.
botany
What is Pharmacognosy involved in?
Study of plants, animals, and other natural sources that yield crude drugs
Pharmacognosy is a multidisciplinary subject.
True
Match the following disciplines with their relation to Pharmacognosy:
Botany = Study of plants Ethnobotany = Study of plants in different cultures Phytochemistry = Study of chemical composition of plants Microbiology = Study of microorganisms
What are the aspects of crude drugs studied in Pharmacognosy?
taxonomic identity; chemical, physical, and biological properties; and methods of cultivation, harvesting, processing, storing, and marketing as well as extraction, preparation, and therapeutic use
Study Notes
PharmDD Program (2023/2024)
Introduction to Pharmacognosy
- Students will acquire knowledge about cytology, physiology, and taxonomy of medicinal leafy plants, dusting powders, and preparation of natural products derived drugs.
- The course will introduce students to different classes of secondary metabolites and pharmacologically active substances in certain official medicinal plants.
Definition of Pharmacognosy
- Pharmacognosy is a branch of pharmacy that deals with the study of medicines from natural sources (plant and animal) and their uses as medicaments from ancient times to present day.
- It involves the study of structural, physical, chemical, and biochemical characters of natural drugs of plant and animal origin.
Scope of Pharmacognosy
- Pharmacognosy is a multidisciplinary subject that requires knowledge of botany, ethnobotany, phytochemistry, microbiology, pharmacology, pharmaceutics, etc.
- It involves the studies of plants, animals, and other natural sources that yield crude drugs and drug substances, including their taxonomic identity, chemical, physical, and biological properties.
Pharmacognosists' Role
- Pharmacognosists isolate and characterize active constituents, evaluate the pharmacology of crude extracts and active constituents, and evaluate the quality of natural medicines.
Medicinal Plants
- Medicinal plants refer to the use of plant parts (seeds, berries, roots, leaves, bark, or flowers) for medicinal purposes.
- Many species of plants contain substances of medicinal value that have yet to be discovered.
Classification of Plants
- Kingdom Plantae consists of over 325,000 species of plants with different characteristics and sizes.
- Classification of plants is based on water requirements, habitat or environmental location, life duration, and natural system of classification.
Classification Based on Habit of Body Appearance
- Trees: woody plants with a single usually elongated stem.
- Shrubs: low, usually several stemmed woody plants.
- Herbs: plants with soft or succulent stem.
Vascular Plants
- Vascular plants with seed are classified into different groups.
References
- Joy, P.P., et al. (2001) Medicinal Plants. In: Bose, T.K., et al. (Eds.), Tropical Horticulture, Naya Prokash, Calcutta, 449-632.
- Joy, P.P., et al. (1998) Medicinal Plants. Tropical Horticulture, 2, 449-632.
- Evans, W.C. (2009) Trease and Evans' Pharmacognosy.
Learn about the study of medicinal plants, their physiology, taxonomy, and preparation of natural product-derived drugs. Explore pharmacologically active substances and secondary metabolites in official medicinal plants.
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