O/L Biology with Sir Billy - AcadEx COGNITIVE

Explore the fascinating world of living organisms. This course introduces students to the principles of life, including cell biology, classification, nutrition, transport, respiration, reproduction, genetics, ecology, and the interactions between organisms and their environment. It builds scientific knowledge, laboratory skills, and a foundation for advanced biological studies.

Course Content

(CGCE) Ordinary Level Biology (0510) syllabus
The Cameroon General Certificate of Education (CGCE) Ordinary Level Biology (0510) syllabus is organised around the study of living organisms, life processes, continuity of life, and the relationship between organisms and their environment. The major areas include cells, nutrition, transport, respiration, reproduction, genetics, ecology, and practical biology skills. Below is a complete syllabus outline with topics, subtopics, and a brief description of what is covered. CGCE O/L BIOLOGY SYLLABUS OUTLINE THEME 1: INTRODUCTION TO BIOLOGY AND PRINCIPLES OF LIFE --- 1.0 THE LIVING WORLD 1.1 Characteristics of Living Organisms Subtopics Movement Respiration Sensitivity Growth Reproduction Excretion Nutrition (MRS GREN) Brief view Study the features that distinguish living things from non-living things. Explain how organisms carry out life processes. --- 1.2 Classification of Living Organisms Subtopics Need for classification Taxonomic groups: Kingdom Phylum Class Order Family Genus Species Binomial naming system Use of classification keys Brief view Students learn how organisms are grouped according to similarities and differences. Identification of plants and animals using biological keys. --- 1.3 Diversity of Living Organisms Subtopics Viruses Bacteria Fungi Protoctists Plants Animals Brief view Study characteristics, examples, importance and harmful effects of different groups of organisms. --- 2.0 CELL BIOLOGY 2.1 Cell Structure and Organisation Subtopics Cell theory Plant cell structure Animal cell structure Cell organelles: Nucleus Cytoplasm Cell membrane Cell wall Chloroplast Vacuole Mitochondria Differences between plant and animal cells Brief view Cells are studied as the basic units of life. Students learn structures and functions of cell parts. --- 2.2 Specialised Cells, Tissues and Organs Subtopics Cell specialisation Plant tissues: Xylem Phloem Epidermis Meristem Animal tissues: Muscle tissue Nervous tissue Epithelial tissue Brief view How cells become adapted for specific functions. Organisation from cells → tissues → organs → systems. --- THEME 2: MAINTENANCE AND REGULATION OF LIFE PROCESSES --- 3.0 MOVEMENT OF SUBSTANCES 3.1 Diffusion Subtopics Definition of diffusion Factors affecting diffusion: Temperature Concentration gradient Surface area Brief view Movement of particles from high concentration to low concentration. --- 3.2 Osmosis Subtopics Definition of osmosis Water movement through selectively permeable membranes Osmotic effects on plant and animal cells Brief view How water enters and leaves cells. Applications in plants and food preservation. --- 3.3 Active Transport Subtopics Energy requirement Mineral absorption by roots Absorption in the intestine Brief view Movement of substances against concentration gradient using energy. --- 4.0 BIOLOGICAL MOLECULES 4.1 Carbohydrates Subtopics Simple sugars Starch Cellulose Tests for carbohydrates Brief view Structure, sources, functions and laboratory tests. --- 4.2 Proteins Subtopics Amino acids Protein structure Functions of proteins Biuret test Brief view Importance of proteins in growth, enzymes and body repair. --- 4.3 Lipids (Fats and Oils) Subtopics Sources of fats Functions Emulsion test Brief view Energy storage, insulation and cell membrane formation. --- 4.4 Enzymes Subtopics Properties of enzymes Factors affecting enzyme activity: Temperature pH Substrate concentration Brief view Biological catalysts and their role in digestion. --- 5.0 NUTRITION IN HUMANS 5.1 Components of a Balanced Diet Subtopics Carbohydrates Proteins Lipids Vitamins Mineral salts Water Fibre Brief view Functions, sources and deficiency diseases. --- 5.2 Digestive System Subtopics Structure of alimentary canal Mouth Oesophagus Stomach Small intestine Large intestine Brief view Digestion, absorption and assimilation of food. --- 5.3 Digestion of Food Subtopics Mechanical digestion Chemical digestion Digestive enzymes: Amylase Protease Lipase Brief view Breakdown of large food molecules into smaller absorbable molecules. --- 5.4 Absorption and Assimilation Subtopics Structure of villus Role of blood vessels and lacteals Fate of absorbed nutrients Brief view How digested food enters blood and is used by cells. --- 6.0 NUTRITION IN PLANTS 6.1 Photosynthesis Subtopics Definition Equation of photosynthesis Conditions necessary: Light Chlorophyll Carbon dioxide Water Brief view How green plants manufacture food. --- 6.2 Leaf Structure and Function Subtopics Adaptations of leaves Chloroplasts Stomata Guard cells Brief view How leaves are designed for photosynthesis. --- 6.3 Mineral Nutrition Subtopics Essential mineral elements: Nitrogen Magnesium Phosphorus Deficiency symptoms Brief view Importance of minerals for plant growth. --- 7.0 TRANSPORT SYSTEMS 7.1 Transport in Plants Subtopics Xylem transport Phloem transport Transpiration Translocation Brief view Movement of water, minerals and food in plants. --- 7.2 Transport in Humans Subtopics Blood composition: Red blood cells White blood cells Platelets Plasma Heart structure Blood vessels: Arteries Veins Capillaries Brief view Circulation and transport of materials around the body. --- 8.0 RESPIRATION 8.1 Aerobic Respiration Subtopics Definition Equation Role of oxygen --- 8.2 Anaerobic Respiration Subtopics Fermentation Respiration in yeast Muscle fatigue --- 8.3 Gas Exchange Subtopics Human respiratory system Alveoli adaptations Breathing mechanism Brief view How organisms release energy from food. --- 9.0 EXCRETION 9.1 Excretory Products Subtopics Carbon dioxide Urea Water Salts --- 9.2 Human Excretory System Subtopics Kidney structure Nephron Urine formation Brief view Removal of metabolic wastes and maintenance of body balance. --- 10.0 HOMEOSTASIS AND COORDINATION 10.1 Homeostasis Subtopics Temperature regulation Blood glucose regulation Water balance --- 10.2 Nervous Coordination Subtopics Neurones Reflex actions Brain Spinal cord Sense organs --- 10.3 Hormonal Coordination Subtopics Endocrine glands Hormones: Insulin Adrenaline Thyroxine Brief view How organisms detect changes and maintain internal conditions. --- THEME 3: CONTINUITY OF LIFE --- 11.0 REPRODUCTION 11.1 Asexual Reproduction Subtopics Binary fission Budding Vegetative propagation --- 11.2 Sexual Reproduction Subtopics Male reproductive system Female reproductive system Fertilisation Pregnancy --- 11.3 Plant Reproduction Subtopics Flower structure Pollination Fertilisation Seed formation Seed dispersal --- 12.0 CELL DIVISION 12.1 Mitosis Subtopics Stages of mitosis Importance in growth and repair --- 12.2 Meiosis Subtopics Formation of gametes Importance in variation --- 13.0 GENETICS AND INHERITANCE 13.1 Basic Genetics Subtopics Genes Chromosomes DNA Alleles --- 13.2 Genetic Crosses Subtopics Dominant and recessive traits Genotype Phenotype Monohybrid inheritance --- 13.3 Variation Subtopics Continuous variation Discontinuous variation Causes of variation --- THEME 4: ORGANISMS AND THEIR ENVIRONMENT --- 14.0 ECOLOGY 14.1 Ecosystems Subtopics Habitat Population Community Ecosystem --- 14.2 Feeding Relationships Subtopics Food chains Food webs Energy flow Ecological pyramids --- 14.3 Population Studies Subtopics Population size Birth rate Death rate Competition --- 14.4 Environmental Conservation Subtopics Pollution Deforestation Bush burning Climate change Conservation methods Brief view Human impact on the environment and ways of protecting biodiversity. --- 15.0 BIOLOGY PRACTICAL SKILLS Subtopics Microscope use Biological drawings Food tests Experiments: Photosynthesis Respiration Transpiration Osmosis Data collection and interpretation Brief view Development of laboratory skills required for GCE practical examinations. --- This structure covers the main CGCE O/L Biology content areas commonly examined, including the major areas repeatedly appearing in Cameroon GCE Biology papers such as cells, nutrition, transport, respiration, reproduction, genetics and ecology.

Characteristics of Living Organisms

20:32
Classification of Living Organisms

18:57
Diversity of Living Organisms

01:06:09

CELL BIOLOGY
2.0 CELL BIOLOGY 2.1 Cell Structure and Organisation Subtopics Cell theory Plant cell structure Animal cell structure Cell organelles: Nucleus Cytoplasm Cell membrane Cell wall Chloroplast Vacuole Mitochondria Differences between plant and animal cells Brief view Cells are studied as the basic units of life. Students learn structures and functions of cell parts. 2.2 Specialised Cells, Tissues and Organs Subtopics Cell specialisation Plant tissues: Xylem Phloem Epidermis Meristem Animal tissues: Muscle tissue Nervous tissue Epithelial tissue Brief view How cells become adapted for specific functions. Organisation from cells → tissues → organs → systems.

A course by

Food Science, Biology and Human Biology Tutor for the GCE Program

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Price:
15000 CFA
Instructor:KOGGERSON AKWE
Lessons:5
Students:0
Level:Intermediate