202 Biology O Level Paper 2 Work Book

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202 Biology O Level Paper 2 Work Book TABLE OF CONTENTS UNIT 1 Cell structure and organisation 1.1 Plant and animal cells (SectionA) Answers Section (A) Plant and animal cells Answers Section (B) 1.2 Specialised cells, tissues and organs (SectionA) Answers Section (A) Specialised cells, tissues and organs (SectionB) Answers Section (B) UNIT 2 Diffusion and osmosis 2.1 Osmosis (SectionA) Answers Section (A) Osmosis (SectionB) Answers Section (B) 2.2 Active transport (SectionB) Answers Section (B) 2.3 Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) Answers Section (B) UNIT 3 Enzymes 3.1 Enzyme action (SectionA) Answers Section (A) Enzyme action (SectionB) Answers Section (B) 3.2 Effects of temperature and pH (SectionA) Answers Section (A) Effects of temperature and pH (SectionB) Answers Section (B) 3.3 Multiple Topics (SectionA) Answers Section (A) UNIT 4 Plant nutrition48 4.1 Photosynthesis (SectionA) Answers Section (A) Photosynthesis (SectionB) Answers Section (B) Leaf structure (SectionA) Answers Section (A) Leaf structure (SectionB) Answers Section (B) 4.3 Mineral nutrition (SectionA) Answers Section (A) Mineral nutrition (SectionB) Answers Section (B) 4.4 Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) Answers Section (B) UNIT 5 Animal nutrition 5.1 Nutrients (SectionA) Answers Section (A) Nutrients (SectionB) Answers Section (B) 5.2 Diet (SectionA) 92 Answers Section (A) Diet (SectionB) Answers Section (B) 5.3 World food supplies (SectionA) Answers Section (A) World food supplies (SectionB) Answers Section (B) 5.4 Human alimentary canal (SectionA) Answers Section (A) Human alimentary canal (SectionB) Answers Section (B) 5.5 Chemical digestion (SectionA) Answers Section (A) Chemical digestion (SectionB) Answers Section (B) 5.6 Absorption and assimilation (SectionA) Answers Section (A) Absorption and assimilation (SectionB) Answers Section (B) 5.7(Biology O Level Paper 2) Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) Answers Section (B) UNIT 6 Transport in flowering plants 6.1(Biology O Level Paper 2) Water and ion uptake (SectionA) Answers Section (A) Water and ion uptake (SectionB) Answers Section (B) 6.2 Transpiration and translocation (SectionA) Answers Section (A) Transpiration and translocation (SectionB) Answers Section (B) 6.3 Multiple topics (SectionA) Answers Section (A) Multiple topics (SectionB) Answers Section (B) UNIT 7 Transport in humans 7. Circulatory system (SectionA) Answers Section (A) 211 Circulatory system (SectionB) Answers Section (B) 7.2 Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) Answers Section (B) UNIT 8 Respiration 8.1 Aerobic respiration (SectionA) Answers Section (A) Aerobic respiration (SectionB) Answers Section (B) 8.2 Anaerobic respiration (SectionA) Answers Section (A) Anaerobic respiration (SectionB) Answers Section (B) 8.3 Human gas exchange (SectionA) Answers Section (A) Human gas exchange (SectionB) Answers Section (B) 8.4 Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) Answers Section (B) UNIT 9 Excretion 9.1p Structure and function of kidneys (SectionA) Answers Section (A) Structure and function of kidneys (SectionB) Answers Section (B) 9.2 Kidney dialysis (SectionA) 275 Answers Section (A) 276 Kidney dialysis (SectionB) 277 Answers Section (B) 279 9.3 Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) Answers Section (B) UNIT 10 Homeostasis 10.1 Structure and function of the skin (SectionA) Answers Section (A) Structure and function of the skin (SectionB) Answers Section (B) 10.2 Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) 2 Answers Section (B) UNIT 11 Coordination and response 11.1 Nervous system (SectionA) Answers Section (A) Nervous system (SectionB) Answers Section (B) 11.2 Receptors (SectionA) Answers Section (A) Receptors (SectionB) Answers Section (B) 11.3 Reflex action (SectionA) Answers Section (A) Reflex action (SectionB) Answers Section (B) 11.4 Hormones (SectionA) Answers Section (A) Hormones (SectionB) Answers Section (B) 11.5 Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) Answers Section (B) UNIT 12 Support, movement and locomotion 12.1 Joints (SectionA) Answers Section (A) 12.2 Antagonistic muscles (SectionA) Answers Section (A) Antagonistic muscles (Sectio Answers Section (B) 12.3 Multiple Topics (SectionB) Answers Section (B) UNIT 13 The use and abuse of drugs 13.1 Antibiotics (SectionA) Answers Section (A) Antibiotics (SectionB) Answers Section (B) 13.2 Effects of alcohol (SectionA) Answers Section (A) Effects of alcohol (SectionB) Answers Section (B) 13.3 Effects of tobacco smoke (SectionA) Answers Section (A) Effects of tobacco smoke (SectionB) Answers Section (B) 13.4 Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) Answers Section (B) UNIT 14 Microorganisms and biotechnology 14. Microorganisms (SectionA) Answers Section (A) Microorganisms (SectionB) 370 Answers Section (B) 372 14.2 Food biotechnology (SectionA) 373 Answers Section (A) 377 Food biotechnology (SectionB) 379 Answers Section (B) 381 14.3 Industrial biotechnology (SectionA) 382 Answers Section (A) 383 Industrial biotechnology (SectionB) Answers Section (B) 14.4 Multiple Topics (SectionB) Answers Section (B) UNIT 15 Relationships of organisms with one another and with the environment 15.1 Energy flow (SectionA) Answers Section (A) Energy flow (SectionB) Answers Section (B) 15.2 Food chains and food webs (SectionA) Answers Section (A) 40 Food chains and food webs (SectionB) 41 Answers Section (B) 413 15.3 Carbon cycle (SectionA) 414 Answers Section (A) 415 Carbon cycle (SectionB) 416 Answers Section (B) 417 15.4 Nitrogen cycle (SectionA) 418 Answers Section (A) 421 Nitrogen cycle (SectionB) Answers Section (B) 15.5 Parasitism (SectionA) Answers Section (A) Parasitism (SectionB) Answers Section (B) 15.6 Effects of humans on the ecosystem (SectionB) Answers Section (B) 15.7 Pollution (SectionA) Answers Section (A) Pollution (SectionB) Answers Section (B) 15.8 Conservation (SectionB) Answers Section (B) 15.9 Multiple Topics (SectionA) Answers Section (A) Multiple Topics (SectionB) Answers Section (B) UNIT 16 Development of organisms and continuity of life 16.1 Asexual reproduction (SectionA) Answers Section (A) Asexual reproduction (SectionB) Answers Section (B) 16.2 Sexual reproduction in plants (SectionA) Answers Section (A) Sexual reproduction in plants (SectionB) Answers Section (B) 16.3 Sexual reproduction in humans (SectionA) Answers Section (A) Sexual reproduction in humans (SectionB) Answers Section (B) 16.4 Sexually transmitted diseases (SectionB) Answers Section (B) 16.5 Multiple Topics (SectionA) Answers Section (A) UNIT 17 Inheritance 17.1 Variation (SectionA) Answers Section (A) Variation (SectionB) Answers Section (B) 17.2 Chromosomes and DNA (SectionA) Answers Section (A) Chromosomes aDNA (SectionB) Answers Section (B) 17.3 Monohybrid inheritance (SectionA) Answers Section Monohybrid inheritance (Section71 Selection (SectionB) Answers Section (B) 17.5 Genetic engineering (SectionA) Answer 17.6 Multiple Topics (SectionA) Answers Section (A)