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Morphology of Flowering Plants: Morphology is the branch of biology that deals with the form, structure, and external characteristics of organisms. In plants, morphology helps us understand how different organs contribute to growth, survival, and reproduction. Flowering plants, also known as angiosperms, are the most diverse group of plants on Earth. They have specialized structures…
The Five Kingdoms of Life classification of living organisms is essential for understanding biodiversity, evolution, and ecological relationships. Traditionally, organisms were classified into two kingdoms: Plantae (plants) and Animalia (animals). However, this system was inadequate to accommodate microorganisms and other unique life forms, leading to the development of more comprehensive classification systems. In 1969, Robert…
Binomial nomenclature is a universally accepted system for naming organisms scientifically. This system assigns each organism a two-part Latinized name consisting of its Genus and Species. It helps avoid confusion caused by multiple common names for the same species across different languages and regions. History and Development of Binomial Nomenclature Binomial nomenclature is the formal…
Diversity in the Living World Life on Earth is incredibly diverse, encompassing a vast range of organisms differing in size, shape, habitat, and function. The diversity in the living world is a result of millions of years of evolution, adaptation, and natural selection. Scientists have classified organisms based on their similarities and differences to make…
Definition of the Living World The living world refers to the vast diversity of organisms that inhabit Earth, including microorganisms, plants, animals, and humans. Living organisms exhibit a range of characteristics that distinguish them from non-living entities. These characteristics include metabolism, growth, reproduction, response to stimuli, cellular organization, homeostasis, adaptation, and evolution. Characteristics of Living…
Aim: Bioassay of Histamine Using Guinea Pig Ileum by Matching Method References 1. Ghosh, M.N. (2008). Fundamentals of Experimental Pharmacology (6th ed.). Hilton & Company. 2. Rang, H.P., Dale, M.M., Ritter, J.M., & Flower, R.J. (2015). Rang & Dale’s Pharmacology (8th ed.). Churchill Livingstone. 3. Schild, H.O. (1947). The bioassay of histamine on the guinea…
Aim: Effect of physostigmine and atropine on DRC of acetylcholine using frog rectus abdominis muscle and rat ileum respectively. References: Objective: To study the effect of physostigmine and atropine on the dose-response curve (DRC) of acetylcholine (ACh) using isolated frog rectus abdominis muscle and rat ileum preparations. Principle: Acetylcholine (ACh) is a neurotransmitter that mediates…
Aim: Dose-Response Curve of Acetylcholine Using Frog Rectus Abdominis Muscle References 1. Ghosh, M.N. (2008). Fundamentals of Experimental Pharmacology (6th ed.). Hilton & Company. 2. Rang, H.P., Dale, M.M., Ritter, J.M., & Flower, R.J. (2015). Rang & Dale’s Pharmacology (8th ed.). Churchill Livingstone. 3. Schild, H.O. (1947). The effect of acetylcholine on the frog rectus…
Aim: Study of Diuretic Activity of Drugs Using Rats/Mice References 1. Schmid, B., & Schindler, C. (2003). Diuretic activity of drugs in rodents. Journal of Pharmacological Methods, 50(2), 123-129. 2. Vogel, H.G. (2008). Drug Discovery and Evaluation: Pharmacological Assays (3rd ed.). Springer. 3. Lipschitz, W.L., Haddian, Z., & Kerpcsar, A. (1943). Bioassay of diuretics. Journal…
Aim: Effect of Drugs on Blood Pressure and Heart Rate in Dogs References 1. Hurst, J.W., & Hurst, T.K. (2019). The Heart: A Cardiovascular Physiology and Pharmacology Textbook. Springer. 2. Kwon, J., & Yu, H. (2015). Effects of various drugs on cardiovascular parameters in canine models. Journal of Veterinary Science, 16(4), 345-356. 3. Kearns, G.L.,…
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