O Level Biology MCQ (PDF) Questions and Answers | IGCSE GCSE Biology MCQs e-Book Download: Quiz Questions Chapter 1-20 & Practice Tests with Answers Key | Biology Textbook Notes, MCQs & Study Guide

The O Level Biology Multiple Choice Questions (MCQ Quiz) with Answers PDF Download (O Level Biology MCQ PDF Book): Quiz Questions Chapter 1-20 & Practice Tests with Answer Key (IGCSE GCSE Biology Questions Bank, MCQs & Notes) includes revision guide for problem solving with hundreds of solved MCQs. O Level Biology MCQ with Answers PDF book covers basic concepts, analytical and practical assessment tests. "O Level Biology MCQ" Book PDF helps to practice test questions from exam prep notes. 

The O Level Biology MCQs with Answers PDF eBook includes revision guide with verbal, quantitative, and analytical past papers, solved MCQs. O Level Biology Multiple Choice Questions and Answers (MCQs) PDF: Free download chapter 1, a book covers solved quiz questions and answers on chapters: Biotechnology, co-ordination and response, animal receptor organs, hormones and endocrine glands, nervous system in mammals, drugs, ecology, effects of human activity on ecosystem, excretion, homeostasis, microorganisms and applications in biotechnology, nutrition in general, nutrition in mammals, nutrition in plants, reproduction in plants, respiration, sexual reproduction in animals, transport in mammals, transport of materials in flowering plants, enzymes and what is biology tests for school and college revision guide. O Level Biology Quiz Questions and Answers PDF Download, free eBook’s sample covers beginner's solved questions, textbook's study notes to practice online tests. 

The book IGCSE GCSE Biology MCQs Chapter 1-20 PDF includes high school question papers to review practice tests for exams. O Level Biology Multiple Choice Questions (MCQ) with Answers PDF digital edition eBook, a study guide with textbook chapters' tests for IGCSE/NEET/MCAT/MDCAT/SAT/ACT competitive exam. GCSE Biology Mock Tests Chapter 1-20 eBook covers problem solving exam tests from biology textbook and practical eBook chapter wise as:

Chapter 1: Biotechnology MCQ

Chapter 2: Animal Receptor Organs MCQ

Chapter 3: Hormones and Endocrine Glands MCQ

Chapter 4: Nervous System in Mammals MCQ

Chapter 5: Drugs MCQ

Chapter 6: Ecology MCQ

Chapter 7: Effects of Human Activity on Ecosystem MCQ

Chapter 8: Excretion MCQ

Chapter 9: Homeostasis MCQ

Chapter 10: Microorganisms and Applications in Biotechnology MCQ

Chapter 11: Nutrition in General MCQ

Chapter 12: Nutrition in Mammals MCQ

Chapter 13: Nutrition in Plants MCQ

Chapter 14: Reproduction in Plants MCQ

Chapter 15: Respiration MCQ

Chapter 16: Sexual Reproduction in Animals MCQ

Chapter 17: Transport in Mammals MCQ

Chapter 18: Transport of Materials in Flowering Plants MCQ

Chapter 19: Enzymes MCQ

Chapter 20: What is Biology MCQ

The e-Book Biotechnology MCQs PDF: Download chapter 1 test to solve MCQ questions on Branches of biotechnology and introduction to biotechnology. 

The e-Book Animal Receptor Organs MCQs PDF: Download chapter 2 test to solve MCQ questions on Controlling entry of light, internal structure of eye, and mammalian eye. 

The e-Book Hormones and Endocrine Glands MCQs PDF: Download chapter 3 test to solve MCQ questions on Glycogen, hormones, and endocrine glands thyroxin function. 

The e-Book Nervous System in Mammals MCQs PDF: Download chapter 4 test to solve MCQ questions on Brain of mammal, forebrain, hindbrain, central nervous system, meningitis, nervous tissue, sensitivity, sensory neurons, spinal cord, nerves, spinal nerves, voluntary, and reflex actions. 

The e-Book Drugs MCQs PDF: Download chapter 5 test to solve MCQ questions on Anesthetics and analgesics, cell biology, drugs of abuse, effects of alcohol, heroin effects, medical drugs, antibiotics, pollution, carbon monoxide, poppies, opium and heroin, smoking related diseases, lung cancer, tea, coffee, and types of drugs. 

The e-Book Ecology MCQs PDF: Download chapter 6 test to solve MCQ questions on Biological science, biotic and abiotic environment, biotic and abiotic in ecology, carbon cycle, fossil fuels, decomposition, ecology and environment, energy types in ecological pyramids, food chain and web, glucose formation, habitat specialization due to salinity, mineral salts, nutrients, parasite diseases, parasitism, malarial pathogen, physical environment, ecology, water, and pyramid of energy. 

The e-Book Effects of Human Activity on Ecosystem MCQs PDF: Download chapter 7 test to solve MCQ questions on Atmospheric pollution, carboxyhemoglobin, conservation, fishing grounds, forests and renewable resources, deforestation and pollution, air and water pollution, eutrophication, herbicides, human biology, molecular biology, pesticides, pollution causes, bod and eutrophication, carbon monoxide, causes of pollution, inorganic wastes as cause, pesticides and DDT, sewage, smog, recycling, waste disposal, and soil erosion. 

The e-Book Excretion MCQs PDF: Download chapter 8 test to solve MCQ questions on Body muscles, excretion, egestion, formation of urine, function of ADH, human biology, kidneys as osmoregulators, mammalian urinary system, size and position of kidneys, structure of nephron, and ultrafiltration. 

The e-Book Homeostasis MCQs PDF: Download chapter 9 test to solve MCQ questions on Diabetes, epidermis and homeostasis, examples of homeostasis in man, heat loss prevention, layers of epidermis, mammalian skin, protein sources, structure of mammalian skin and nephron, ultrafiltration, and selective reabsorption. 

The e-Book Microorganisms and Applications in Biotechnology MCQs PDF: Download chapter 10 test to solve MCQ questions on Biotechnology and fermentation products, microorganisms, antibiotics: penicillin production, fungi: mode of life, decomposers in nature, parasite diseases, genetic engineering, viruses, and biochemical parasites. 

The e-Book Nutrition in General MCQs PDF: Download chapter 11 test to solve MCQ questions on Amino acid, anemia and minerals, average daily mineral intake, balanced diet and food values, basal metabolism, biological molecules, biological science, fats, body muscles, carbohydrates, cellulose digestion, characteristics of energy, condensation reaction, daily energy requirements, disaccharides and complex sugars, disadvantages of excess vitamins, disease caused by protein deficiency, energy requirements, energy units, fat rich foods, fats and health, fructose and disaccharides, functions and composition, general nutrition, glucose formation, glycerol, glycogen, health pyramid, heat loss prevention, human heart, hydrolysis, internal skeleton, lactose, liver, mineral nutrition in plants, molecular biology, mucus, nutrients, nutrition vitamins, glycogen, nutrition, protein sources, proteins, red blood cells and hemoglobin, simple carbohydrates, starch, starvation and muscle waste, structure and function, formation and test, thyroxin function, vitamin deficiency, vitamins, minerals, vitamin D, weight reduction program, and nutrition. 

The e-Book Nutrition in Mammals MCQs PDF: Download chapter 12 test to solve MCQ questions on Adaptations in small intestine, amino acid, bile, origination and functions, biological molecules, fats, caecum and chyle, cell biology, digestion process, function of assimilation, pepsin, trypsinogen, function of enzymes, functions and composition, functions of liver, functions of stomach, gastric juice, glycerol, holozoic nutrition, liver, mammalian digestive system, molecular biology, mouth and buccal cavity, esophagus, proteins, red blood cells and hemoglobin, stomach and pancreas, structure and function and nutrition. 

The e-Book Nutrition in Plants MCQs PDF: Download chapter 13 test to solve MCQ questions on Amino acid, carbohydrate, conditions essential for photosynthesis, digestion process, function of enzyme, pepsin, function of enzymes, glycerol, holozoic nutrition, leaf adaptations for photosynthesis, limiting factors, mineral nutrition in plants, mineral salts, molecular biology, photolysis, photons in photosynthesis, photosynthesis in plants, photosynthesis, starch, stomata and functions, storage of excess amino acids, structure and function, structure of lamina, formation and test, vitamins and minerals, water transport in plants, and nutrition. 

The e-Book Reproduction in Plants MCQs PDF: Download chapter 14 test to solve MCQ questions on Transport in flowering plants, artificial methods of vegetative reproduction, asexual reproduction, dormancy and seed germination, epigeal and hypogeal germination, fertilization and post fertilization changes, insect pollination, natural vegetative propagation in flowering plants, ovary and pistil, parts of flower, pollination in flowers, pollination, seed dispersal, dispersal by animals, seed dispersal, sexual and asexual reproduction, structure of a wind pollinated flower, structure of an insect pollinated flower, types of flowers, vegetative reproduction in plants, wind dispersed fruits and seeds, and wind pollination. 

The e-Book Respiration MCQs PDF: Download chapter 15 test to solve MCQ questions on Aerobic respiration and waste, biological science, human biology, human respiration, molecular biology, oxidation and respiration, oxygen debt, tissue respiration, gas exchange, breathing, and respiration. 

The e-Book Sexual Reproduction in Animals MCQs PDF: Download chapter 16 test to solve MCQ questions on Features of sexual reproduction in animals, and male reproductive system. 

The e-Book Transport in Mammals MCQs PDF: Download chapter 17 test to solve MCQ questions on Acclimatization to high attitudes, anemia and minerals, blood and plasma, blood clotting, blood platelets, blood pressure testing, blood pressures, carboxyhemoglobin, circulatory system, double circulation in mammals, function and shape of RBCS, heart, human biology, human heart, main arteries of body, main veins of body, mode of action of heart, organ transplantation and rejection, production of antibodies, red blood cells, hemoglobin, red blood cells in mammals, role of blood in transportation, fibrinogen, and white blood cells. 

The e-Book Transport of Materials in Flowering Plants MCQs PDF: Download chapter 18 test to solve MCQ questions on Transport in flowering plants, cell biology, cell structure and function, epidermis and homeostasis, functions and composition, herbaceous and woody plants, mineral salts, molecular biology, piliferous layer, stomata and functions, structure of root, sugar types, formation and test, water transport in plants, and transpiration. 

The e-Book Enzymes MCQs PDF: Download chapter 19 test to solve MCQ questions on Amino acid, biological science, characteristics of enzymes, classification of enzymes, denaturation of enzymes, digestion process, digestion, catalyzed process, effects of pH, effects of temperature, enzymes, factors affecting enzymes, hydrolysis, rate of reaction, enzyme activity, and specifity of enzymes. 

The e-Book What is Biology MCQs PDF: Download chapter 20 test to solve MCQ questions on Biology basics, cell biology, cell structure, cell structure and function, cells, building blocks of life, tissues, excretion, human respiration, red blood cells and hemoglobin, sensitivity, structure of cell and protoplasm, centrioles, mitochondrion, nucleus, protoplasm, vacuoles, system of classification, vitamins, minerals and nutrition.