,Contents
1 Characteristics and classi
cation of living organisms 3
2 Organisation of the organism 15
3 Movement in and out of cells 23
4 Biological molecules 29
5 Enzymes 31
6 Plant nutrition 35
7 Human nutrition 51
8 Transport in plants 93
9 Transport in animals 113
10 Diseases and immunity 145
11 Gas exchange in humans 161
12 Respiration 175
13 Excretion in humans 193
14 Coordination and response 205
15 Drugs 257
16 Reproduction 289
17 Inheritance 327
18 Variation and selection 391
19 Organisms and their environment 421
20 Biotechnology and genetic engineering 451
21 Human in
uences on ecosystems 495
A Answers 579
1
,2 CONTENTS
, Chapter 1
Characteristics and classi
cation of
living organisms
3
1 Characteristics and classi
cation of living organisms 3
2 Organisation of the organism 15
3 Movement in and out of cells 23
4 Biological molecules 29
5 Enzymes 31
6 Plant nutrition 35
7 Human nutrition 51
8 Transport in plants 93
9 Transport in animals 113
10 Diseases and immunity 145
11 Gas exchange in humans 161
12 Respiration 175
13 Excretion in humans 193
14 Coordination and response 205
15 Drugs 257
16 Reproduction 289
17 Inheritance 327
18 Variation and selection 391
19 Organisms and their environment 421
20 Biotechnology and genetic engineering 451
21 Human in
uences on ecosystems 495
A Answers 579
1
,2 CONTENTS
, Chapter 1
Characteristics and classi
cation of
living organisms
3
