Biology 2021: Content Updates and Revisions Biology 2021: Content Updates and Revisions Note: This article provides general information about biology concepts in 2021, it may not encompass all necessary content. You should consult additional textbooks and teachers to ensure a comprehensive understanding of the subject. Evolution and Origins Primate Evolution in the Cenozoic Era: The…
Bone Tissue – Structure, Function, and Remodeling Bone Tissue – Structure, Function, and Remodeling Bone tissue is a specialized type of connective tissue that plays a crucial role in supporting the body, protecting internal organs, and providing leverage for muscle movement. 1. Structure of Bone Tissue Bone matrix: This is the extracellular component of bone…
Virology – Lesson 2: Viruses Virology – Lesson 2: Viruses What are viruses? Viruses are obligate intracellular parasites: They are not cells themselves, but rather non-cellular entities. This means they lack a cell membrane, organelles such as mitochondria or chloroplasts, and a separate protein synthesis machinery. Viruses cannot replicate independently: They require host cells (animal,…
Sleep Disorders: Understanding the Basics to Improve Your Sleep Sleep Disorders: Understanding the Basics to Improve Your Sleep Sleep plays a crucial role in maintaining both physical and mental well-being. However, many people struggle with sleep problems, impacting their quality of life. This article will provide knowledge about normal sleep, common sleep disorders, and essential…
**Molecular Structure of Organic Compounds** **Molecular Structure of Organic Compounds** 1. Chemical Structure Theory Chemical structure theory is the foundation for understanding and explaining the properties of organic compounds. It encompasses three main points: 1.1. Point 1: In an organic compound molecule, atoms are linked together according to their valency and in a specific order.…
Gastrointestinal Physiology and Pharmacology 1: The Digestive System (Peptic Ulcer Disease) Gastrointestinal Physiology and Pharmacology 1: The Digestive System (Peptic Ulcer Disease) 1. Gastric Anatomy The stomach is a J-shaped organ situated in the upper abdominal cavity, connecting to the esophagus above and the duodenum below. It is divided into three sections: Fundus: The broadest…
Molecular Formula of Organic Compounds Molecular Formula of Organic Compounds 1. Definition: Molecular formula: A chemical formula that represents the number of atoms of each element present in a molecule of an organic compound. Example: The molecular formula of methane is CH4, indicating that one molecule of methane contains one carbon (C) atom and four…
Elemental Analysis in Organic Chemistry Elemental Analysis in Organic Chemistry 1. Introduction Elemental analysis is a crucial technique in organic chemistry that helps determine the elemental composition of an organic compound. It provides insights into the chemical elements that constitute the compound and their relative proportions. 2. Classification Elemental analysis is broadly classified into two…
Tuberculosis Treatment: Basic Knowledge and Important Information Tuberculosis Treatment: Basic Knowledge and Important Information 1. Introduction Tuberculosis (TB) is an infectious disease caused by the bacteria Mycobacterium tuberculosis (TB bacteria). It can affect many organs in the body, but most commonly affects the lungs. TB treatment involves using anti-TB drugs to kill the TB bacteria…
Cartilage: Structure, Function, and Considerations Cartilage: Structure, Function, and Considerations Cartilage is a specialized type of connective tissue known for its high elasticity and ability to withstand significant forces. It lacks blood vessels and nerves, making repair and regeneration of cartilage very slow. 1. Structure of Cartilage: Cartilage Cells: Chondroblasts: These are immature cells with…