Description
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
9.1\p
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)
