Biology O-Level P-2 Work Book

1,350.00

Book Code : 202
Number of Pages : 621
Author : Editorial Board
Language : English
Publishers : Read and Write Publications

 

Categories: ,

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TABLE OF CONTENTS
UNIT 1 Cell structure and organisation ——————————————————————— 7
1.1
Plant and animal cells (Section-A) ——————————————————————– 7
Answers Section (A) ———————————————————————————- 11
Plant and animal cells ———————————————————————————— 12
Answers Section (B) ———————————————————————————- 15
1.2
Specialised cells, tissues and organs (Section-A) ————————————————- 17
Answers Section (A) ———————————————————————————- 19
Specialised cells, tissues and organs (Section-B) ————————————————- 20
Answers Section (B) ———————————————————————————- 22
UNIT 2 Diffusion and osmosis ——————————————————————————— 23
2.1
Osmosis (Section-A) ————————————————————————————– 23
Answers Section (A) ———————————————————————————- 26
Osmosis (Section-B) ————————————————————————————– 27
Answers Section (B) ———————————————————————————- 28
2.2
Active transport (Section-B) ————————————————————————— 29
Answers Section (B) ———————————————————————————- 30
2.3
Multiple Topics (Section-A) —————————————————————————— 31
Answers Section (A) ———————————————————————————- 32
Multiple Topics (Section-B) —————————————————————————— 33
Answers Section (B) ———————————————————————————- 35
UNIT 3 Enzymes —————————————————————————————————- 36
3.1
Enzyme action (Section-A) —————————————————————————— 36
Answers Section (A) ———————————————————————————- 37
Enzyme action (Section-B) —————————————————————————— 38
Answers Section (B) ———————————————————————————- 39
3.2
Effects of temperature and pH (Section-A) ———————————————————- 40
Answers Section (A) ———————————————————————————- 43
Effects of temperature and pH (Section-B) ———————————————————- 44
Answers Section (B) ———————————————————————————- 45
3.3
Multiple Topics (Section-A) —————————————————————————— 46
Answers Section (A) ———————————————————————————- 47
UNIT 4 Plant nutrition ——————————————————————————————— 48
4.1
Photosynthesis (Section-A) —————————————————————————— 48
Answers Section (A) ———————————————————————————- 56
Photosynthesis (Section-B) —————————————————————————— 58
Answers Section (B) ———————————————————————————- 61
4.2
Leaf structure (Section-A) ——————————————————————————– 62
Answers Section (A) ———————————————————————————- 65
Leaf structure (Section-B) ——————————————————————————– 66
Answers Section (B) ———————————————————————————- 69
4.3
Mineral nutrition (Section-A) —————————————————————————- – 71
Answers Section (A) ———————————————————————————- 73
Mineral nutrition (Section-B) —————————————————————————– 74
Answers Section (B) ———————————————————————————- 75
4.4
Multiple Topics (Section-A) —————————————————————————— 76
Answers Section (A) ———————————————————————————- 82
Multiple Topics (Section-B) —————————————————————————— 84
Answers Section (B) ———————————————————————————- 86
UNIT 5 Animal nutrition —————————————————————————————— 87
5.1
Nutrients (Section-A) ————————————————————————————– 87
Answers Section (A) ———————————————————————————- 89
Nutrients (Section-B) ————————————————————————————– 90
Answers Section (B) ———————————————————————————- 91
5.2
Diet (Section-A) ——————————————————————————————— 92
Answers Section (A) ———————————————————————————- 97
Diet (Section-B) ——————————————————————————————— 99
Answers Section (B) ———————————————————————————- 101
5.3
World food supplies (Section-A) ———————————————————————— 102
Answers Section (A) ———————————————————————————- 103
World food supplies (Section-B) ———————————————————————— 104
Answers Section (B) ———————————————————————————- 106
5.4
Human alimentary canal (Section-A) —————————————————————— 107
Answers Section (A) ———————————————————————————- 112
Human alimentary canal (Section-B) —————————————————————— 114
Answers Section (B) ———————————————————————————- 117
5.5
Chemical digestion (Section-A) ————————————————————————- 118
Answers Section (A) ———————————————————————————- 123
Chemical digestion (Section-B) ————————————————————————- 125
Answers Section (B) ———————————————————————————- 127
5.6
Absorption and assimilation (Section-A) ————————————————————- 128
Answers Section (A) ———————————————————————————- 132
Absorption and assimilation (Section-B) ————————————————————- 134
Answers Section (B) ———————————————————————————- 136
5.7
Multiple Topics (Section-A) —————————————————————————— 137
Answers Section (A) ———————————————————————————- 147
Multiple Topics (Section-B) —————————————————————————— 149
Answers Section (B) ———————————————————————————- 152
UNIT 6 Transport in flowering plants ———————————————————————— 154
6.1
Water and ion uptake (Section-A) ——————————————————————— 154
Answers Section (A) ———————————————————————————- 159
Water and ion uptake (Section-B) ——————————————————————— 160
Answers Section (B) ———————————————————————————- 161
6.2
Transpiration and translocation (Section-A) ——————————————————— 162
Answers Section (A) ———————————————————————————- 174
Transpiration and translocation (Section-B) ——————————————————— 178
Answers Section (B) ———————————————————————————- 184
6.3
Multiple topics (Section-A) ——————————————————————————- 187
Answers Section (A) ———————————————————————————- 190
Multiple topics (Section-B) ——————————————————————————- 191
Answers Section (B) ———————————————————————————- 193
UNIT 7 Transport in humans ———————————————————————————– 195
7.1
Circulatory system (Section-A) ————————————————————————- 195
Answers Section (A) ———————————————————————————- 211
Circulatory system (Section-B) ————————————————————————- 215
Answers Section (B) ———————————————————————————- 221
7.2
Multiple Topics (Section-A) —————————————————————————— 224
Answers Section (A) ———————————————————————————- 227
Multiple Topics (Section-B) —————————————————————————— 228
Answers Section (B) ———————————————————————————- 229
UNIT 8 Respiration ———————————————————————————————— 230
8.1
Aerobic respiration (Section-A) ————————————————————————- 230
Answers Section (A) ———————————————————————————- 232
Aerobic respiration (Section-B) ————————————————————————- 233
Answers Section (B) ———————————————————————————- 234
8.2
Anaerobic respiration (Section-A) ———————————————————————- 235
Answers Section (A) ———————————————————————————- 238
Anaerobic respiration (Section-B) ———————————————————————- 239
Answers Section (B) ———————————————————————————- 240
8.3
Human gas exchange (Section-A) ——————————————————————— 241
Answers Section (A) ———————————————————————————- 247
Human gas exchange (Section-B) ——————————————————————— 250
Answers Section (B) ———————————————————————————- 253
8.4
Multiple Topics (Section-A) —————————————————————————— 255
Answers Section (A) ———————————————————————————- 260
Multiple Topics (Section-B) —————————————————————————— 262
Answers Section (B) ———————————————————————————- 266
UNIT 9 Excretion ————————————————————————————————— 268
9.1
Structure and function of kidneys (Section-A) —————————————————— 268
Answers Section (A) ———————————————————————————- 271
Structure and function of kidneys (Section-B) —————————————————— 272
Answers Section (B) ———————————————————————————- 274
9.2
Kidney dialysis (Section-A) —————————————————————————— 275
Answers Section (A) ———————————————————————————- 276
Kidney dialysis (Section-B) —————————————————————————— 277
Answers Section (B) ———————————————————————————- 279
9.3
Multiple Topics (Section-A) —————————————————————————— 280
Answers Section (A) ———————————————————————————- 282
Multiple Topics (Section-B) —————————————————————————— 283
Answers Section (B) ———————————————————————————- 286
UNIT 10 Homeostasis ———————————————————————————————- 288
10.1
Structure and function of the skin (Section-A) —————————————————— 288
Answers Section (A) ———————————————————————————- 291
Structure and function of the skin (Section-B) —————————————————— 292
Answers Section (B) ———————————————————————————- 293
10.2
Multiple Topics (Section-A) —————————————————————————— 294
Answers Section (A) ———————————————————————————- 296
Multiple Topics (Section-B) —————————————————————————— 297
Answers Section (B) ———————————————————————————- 299
UNIT 11 Coordination and response ————————————————————————– 301
11.1
Nervous system (Section-A) —————————————————————————- 301
Answers Section (A) ———————————————————————————- 302
Nervous system (Section-B) —————————————————————————- 303
Answers Section (B) ———————————————————————————- 305
11.2
Receptors (Section-A) ———————————————————————————— 306
Answers Section (A) ———————————————————————————- 310
Receptors (Section-B) ———————————————————————————— 311
Answers Section (B) ———————————————————————————- 313
11.3
Reflex action (Section-A) ——————————————————————————— 314
Answers Section (A) ———————————————————————————- 315
Reflex action (Section-B) ——————————————————————————— 316
Answers Section (B) ———————————————————————————- 319
11.4
Hormones (Section-A) ———————————————————————————— 321
Answers Section (A) ———————————————————————————- 323
Hormones (Section-B) ———————————————————————————— 324
Answers Section (B) ———————————————————————————- 326
11.5
Multiple Topics (Section-A) —————————————————————————— 327
Answers Section (A) ———————————————————————————- 329
Multiple Topics (Section-B) —————————————————————————— 330
Answers Section (B) ———————————————————————————- 332
UNIT 12 Support, movement and locomotion ————————————————————– 333
12.1
Joints (Section-A) —————————————————————————————— 333
Answers Section (A) ———————————————————————————- 334
12.2
Antagonistic muscles (Section-A) ———————————————————————- 335
Answers Section (A) ———————————————————————————- 338
Antagonistic muscles (Section-B) ———————————————————————- 339
Answers Section (B) ———————————————————————————- 340
12.3
Multiple Topics (Section-B) —————————————————————————— 341
Answers Section (B) ———————————————————————————- 342
UNIT 13 The use and abuse of drugs ————————————————————————- 343
13.1
Antibiotics (Section-A) ———————————————————————————— 343
Answers Section (A) ———————————————————————————- 344
Antibiotics (Section-B) ———————————————————————————— 345
Answers Section (B) ———————————————————————————- 346
13.2
Effects of alcohol (Section-A) ————————————————————————— 347
Answers Section (A) ———————————————————————————- 348
Effects of alcohol (Section-B) ————————————————————————— 349
Answers Section (B) ———————————————————————————- 350
13.3
Effects of tobacco smoke (Section-A) —————————————————————- 351
Answers Section (A) ———————————————————————————- 355
Effects of tobacco smoke (Section-B) —————————————————————- 356
Answers Section (B) ———————————————————————————- 357
13.4
Multiple Topics (Section-A) —————————————————————————— 358
Answers Section (A) ———————————————————————————- 360
Multiple Topics (Section-B) —————————————————————————— 361
Answers Section (B) ———————————————————————————- 362
UNIT 14 Microorganisms and biotechnology ————————————————————– 363
14.1
Microorganisms (Section-A) —————————————————————————– 363
Answers Section (A) ———————————————————————————- 368
Microorganisms (Section-B) —————————————————————————– 370
Answers Section (B) ———————————————————————————- 372
14.2
Food biotechnology (Section-A) ———————————————————————— 373
Answers Section (A) ———————————————————————————- 377
Food biotechnology (Section-B) ———————————————————————— 379
Answers Section (B) ———————————————————————————- 381
14.3
Industrial biotechnology (Section-A) —————————————————————— 382
Answers Section (A) ———————————————————————————- 383
Industrial biotechnology (Section-B) —————————————————————— 384
Answers Section (B) ———————————————————————————- 388
14.4
Multiple Topics (Section-B) —————————————————————————— 390
Answers Section (B) ———————————————————————————- 391
UNIT 15 Relationships of organisms with one another and with the environment ———— 392
15.1 Energy flow (Section-A) ———————————————————————————- 392
Answers Section (A) ———————————————————————————- 398
Energy flow (Section-B) ———————————————————————————- 400
Answers Section (B) ———————————————————————————- 403
15.2
Food chains and food webs (Section-A) ————————————————————- 405
Answers Section (A) ———————————————————————————- 409
Food chains and food webs (Section-B) ————————————————————- 410
Answers Section (B) ———————————————————————————- 413
15.3
Carbon cycle (Section-A) ——————————————————————————– 414
Answers Section (A) ———————————————————————————- 415
Carbon cycle (Section-B) ——————————————————————————– 416
Answers Section (B) ———————————————————————————- 417
15.4
Nitrogen cycle (Section-A) ——————————————————————————- 418
Answers Section (A) ———————————————————————————- 421
Nitrogen cycle (Section-B) ——————————————————————————- 422
Answers Section (B) ———————————————————————————- 423
15.5
Parasitism (Section-A) ———————————————————————————— 424
Answers Section (A) ———————————————————————————- 426
Parasitism (Section-B) ———————————————————————————— 427
Answers Section (B) ———————————————————————————- 429
15.6
Effects of humans on the ecosystem (Section-B) ————————————————– 430
Answers Section (B) ———————————————————————————- 431
15.7
Pollution (Section-A) ————————————————————————————– 432
Answers Section (A) ———————————————————————————- 435
Pollution (Section-B) ————————————————————————————– 436
Answers Section (B) ———————————————————————————- 438
15.8
Conservation (Section-B) ——————————————————————————– 439
Answers Section (B) ———————————————————————————- 440
15.9
Multiple Topics (Section-A) —————————————————————————— 441
Answers Section (A) ———————————————————————————- 448
Multiple Topics (Section-B) —————————————————————————— 450
Answers Section (B) ———————————————————————————- 452
UNIT 16 Development of organisms and continuity of life ——————————————– 453
16.1
Asexual reproduction (Section-A) ———————————————————————- 453
Answers Section (A) ———————————————————————————- 455
Asexual reproduction (Section-B) ———————————————————————- 456
Answers Section (B) ———————————————————————————- 457
16.2
Sexual reproduction in plants (Section-A) ———————————————————– 458
Answers Section (A) ———————————————————————————- 481
Sexual reproduction in plants (Section-B) ———————————————————– 488
Answers Section (B) ———————————————————————————- 496
16.3
Sexual reproduction in humans (Section-A) ——————————————————— 500
Answers Section (A) ———————————————————————————- 512
Sexual reproduction in humans (Section-B) ——————————————————— 516
Answers Section (B) ———————————————————————————- 524
16.4
Sexually transmitted diseases (Section-B) ———————————————————- 528
Answers Section (B) ———————————————————————————- 531
16.5
Multiple Topics (Section-A) —————————————————————————— 533
Answers Section (A) ———————————————————————————- 536
UNIT 17 Inheritance ————————————————————————————————- 537
17.1
Variation (Section-A) ————————————————————————————– 537
Answers Section (A) ———————————————————————————- 539
Variation (Section-B) ————————————————————————————– 540
Answers Section (B) ———————————————————————————- 541
17.2
Chromosomes and DNA (Section-A) —————————————————————– 542
Answers Section (A) ———————————————————————————- 546
Chromosomes and DNA (Section-B) —————————————————————– 547
Answers Section (B) ———————————————————————————- 548
17.3
Monohybrid inheritance (Section-A) ——————————————————————- 549
Answers Section (A) ———————————————————————————- 556
Monohybrid inheritance (Section-B) ——————————————————————- 558
Answers Section (B) ———————————————————————————- 564
17.4
Selection (Section-A) ————————————————————————————– 567
Answers Section (A) ———————————————————————————- 571
Selection (Section-B) ————————————————————————————– 572
Answers Section (B) ———————————————————————————- 574
17.5
Genetic engineering (Section-A) ———————————————————————– 575
Answers Section (A) ———————————————————————————- 579
17.6
Multiple Topics (Section-A) —————————————————————————— 581
Answers Section (A) ———————————————————————————- 586

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