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Book Details
Abstract
Created for the new 2015 OCR AS and A level specifications, our new Student Books cover the topics comprehensively, developing scientific thinking in your students, providing them with a deep understanding of the subject and creating confident, independent scientists.
Table of Contents
Section Title | Page | Action | Price |
---|---|---|---|
Cover | Cover | ||
Contents | 4 | ||
How to use this book | 6 | ||
Topic 1: Biological molecules | 8 | ||
Chapter 1.1: Chemistry for life | 8 | ||
1: Chemistry for life | 10 | ||
Ionic and covalent bonding | 10 | ||
The importance of inorganic ions | 11 | ||
The chemistry of water | 12 | ||
The importance of water | 12 | ||
Exam-style questions | 14 | ||
Chapter 1.2: Biological molecules 1 | 16 | ||
1: Carbohydrates 1 – monosaccharides and disaccharides | 18 | ||
What are organic compounds? | 18 | ||
Carbohydrates | 18 | ||
2: Carbohydrates 2 – polysaccharides | 21 | ||
Carbohydrates as energy stores | 22 | ||
Carbohydrates in plants | 23 | ||
3: Lipids | 25 | ||
Fats and oils | 25 | ||
The nature of lipids | 26 | ||
Phospholipids | 27 | ||
4: Proteins | 28 | ||
Amino acids | 28 | ||
Bonds in proteins | 28 | ||
Protein structure | 29 | ||
Fibrous and globular proteins | 30 | ||
Conjugated proteins | 30 | ||
Thinking Bigger: Trehalose - A Sugar for Dry Eyes? | 32 | ||
Exam-style questions | 34 | ||
Chapter 1.3: Biological molecules 2 | 36 | ||
1: Nucleotides and ATP | 38 | ||
Nucleotides | 38 | ||
ATP | 38 | ||
2: Nucleic acids | 40 | ||
Building the polynucleotides | 40 | ||
3: How DNA works | 42 | ||
Uncovering the mechanism of replication | 42 | ||
How DNA makes copies of itself | 43 | ||
4: The genetic code | 44 | ||
What is the genetic code? | 44 | ||
Cracking the code | 44 | ||
5: DNA and protein synthesis | 47 | ||
Different types of RNA | 47 | ||
Protein synthesis | 48 | ||
6: Gene mutation | 50 | ||
Different types of mutations | 50 | ||
How gene mutations can affect the phenotype | 50 | ||
Exam-style questions | 52 | ||
Chapter 1.4: Enzymes | 54 | ||
1: Enzymes | 56 | ||
What is an enzyme? | 56 | ||
2: How enzymes work | 58 | ||
How do enzymes work? | 58 | ||
Measuring reaction rate | 59 | ||
What do we know about enzymes? | 60 | ||
3: Enzyme inhibition | 62 | ||
Reversible inhibition of enzymes | 62 | ||
Irreversible inhibition of enzymes | 62 | ||
End-product inhibition and the regulation of the cell | 63 | ||
Thinking Bigger: Raw Enzymes-Really? | 64 | ||
Exam-style questions | 66 | ||
Topic 2: Cells and viruses | 68 | ||
Chapter 2.1: Eukaryotic cells | 68 | ||
1: Observing cells | 70 | ||
Discovering cells | 70 | ||
Microscopes | 71 | ||
The electron microscope | 72 | ||
2: Cell membranes | 74 | ||
Membranes in cells | 74 | ||
The structure of membranes | 74 | ||
3: Eukaryotic cells 1 - common cellular structures | 76 | ||
The characteristics of eukaryotic cells | 76 | ||
The typical animal cell | 77 | ||
The nucleus | 77 | ||
Mitochondria | 77 | ||
The centrioles | 78 | ||
The cytoskeleton | 78 | ||
Vacuoles | 78 | ||
4: Eukaryotic cells 2 – protein transport | 80 | ||
80S and 70S ribosomes | 80 | ||
Rough and smooth endoplasmic reticulum | 80 | ||
The Golgi apparatus | 81 | ||
Lysosomes | 81 | ||
5: Eukaryotic cells 3 – plant cell structures | 83 | ||
The plant cell wall | 84 | ||
Plasmodesmata | 84 | ||
6: Eukaryotic cells 4 – plant organelles | 86 | ||
Permanent vacuole | 86 | ||
Chloroplasts | 87 | ||
Amyloplasts | 87 | ||
7: The organisation of cells | 88 | ||
Tissues | 88 | ||
Organs | 89 | ||
Systems | 89 | ||
Exam-style questions | 90 | ||
Chapter 2.2: Prokaryotic cells | 92 | ||
1: Prokaryotic cells | 94 | ||
The structure of bacteria | 94 | ||
Gram staining and bacterial cell walls | 95 | ||
Antibiotics and bacterial cell walls | 96 | ||
Alternative ways of classifying bacteria | 97 | ||
2: Viruses | 98 | ||
Viruses | 98 | ||
The structure of viruses | 98 | ||
Classifying viruses | 98 | ||
How viruses reproduce | 99 | ||
DNA virus replication | 99 | ||
RNA virus replication | 99 | ||
Viruses and disease | 101 | ||
3: Controlling viral infections | 102 | ||
The spread of viral diseases | 102 | ||
Treating viral diseases | 102 | ||
Preventing viral disease | 102 | ||
The development of new medicines | 104 | ||
Speeding up the process | 104 | ||
Ethical implications | 104 | ||
Thinking Bigger: Ebola - A Deadly Virus | 106 | ||
Exam-style questions | 108 | ||
Chapter 2.3: Eukaryotic cell division - mitosis | 110 | ||
1: The cell cycle | 112 | ||
What are chromosomes? | 112 | ||
The cell cycle | 112 | ||
2: Mitosis | 114 | ||
The stages of mitosis | 114 | ||
3: Asexual reproduction | 117 | ||
Strategies for asexual reproduction | 117 | ||
Topic 3: Classification | 150 | ||
Chapter 3.1: Classification | 150 | ||
1: Principles of classification | 152 | ||
The background to biodiversity | 152 | ||
Why classify? | 152 | ||
The history of taxonomy | 152 | ||
The main taxonomic groups | 152 | ||
The binomial system | 153 | ||
2: What is a species? | 154 | ||
The concept of species | 154 | ||
Other definitions of species | 155 | ||
Limitations of species models | 156 | ||
Identifying a species | 157 | ||
3: Identifying individual species | 158 | ||
The importance of DNA | 158 | ||
The caviar con | 158 | ||
DNA barcodes | 158 | ||
4: New evidence for evolution | 160 | ||
Fossil DNA and human evolution | 160 | ||
DNA, lice and human evolution | 160 | ||
New models support old theories | 161 | ||
5: Domains, kingdoms or both? | 162 | ||
Biochemical relationships | 162 | ||
More biochemical relationships | 163 | ||
Two domains or three? | 163 | ||
How many kingdoms? | 167 | ||
Thinking Bigger: Taking Advantage Of Change | 168 | ||
Exam-style questions | 170 | ||
Chapter 3.2: Natural selection | 172 | ||
1: Evolution and adaptation | 174 | ||
Observing evolution | 174 | ||
The theory of evolution | 174 | ||
Neo-Darwinism - evolution in the twenty-first century | 174 | ||
Adaptation to a niche | 175 | ||
Adaptations for survival | 176 | ||
2: Natural selection in action | 178 | ||
Oysters adapting to change | 178 | ||
Natural selection in moths | 178 | ||
Selecting for reproductive success | 179 | ||
Directional selection | 180 | ||
3: The evolutionary race between pathogens and medicines | 181 | ||
Beating bacteria, step 1 | 181 | ||
Bacteria fight back | 181 | ||
Beating bacteria, step 2 | 181 | ||
What does the future hold? | 182 | ||
4: Speciation | 183 | ||
Isolation and speciation | 183 | ||
Isolating mechanisms | 183 | ||
Allopatric speciation | 183 | ||
Adaptive radiation | 184 | ||
Sympatric speciation | 185 | ||
Cichlid fish in the African lakes | 186 | ||
Cichlid speciation | 186 | ||
Fear for the future | 187 | ||
Thinking Bigger: Reviving the Quagga | 188 | ||
Exam-style questions | 190 | ||
Chapter 3.3: Biodiversity | 192 | ||
1: The importance of biodiversity | 194 | ||
Defining biodiversity | 194 | ||
Why is biodiversity important? | 194 | ||
Assessing biodiversity at the species level | 195 | ||
Measuring biodiversity | 197 | ||
How biodiversity varies | 198 | ||
When to measure biodiversity? | 198 | ||
2: Biodiversity within a species | 199 | ||
Gene and allele frequency | 199 | ||
Measuring genetic biodiversity | 200 | ||
The isolated islands of Hawaii | 201 | ||
3: Ecosystem services | 202 | ||
Ethical reasons for maintaining biodiversity | 202 | ||
Ecosystems services | 202 | ||
Taking an ecosystems approach | 203 | ||
4: Ex situ and in situ conservation | 204 | ||
Ex-situ conservation | 204 | ||
In-situ conservation | 205 | ||
Conflicts in conservation | 207 | ||
Exam-style questions | 208 | ||
Topic 4: Exchange and transport | 210 | ||
Chapter 4.1: Cell transport mechanisms | 210 | ||
1: Transport in cells | 212 | ||
The need for transport | 212 | ||
The fluid mosaic model of the cell membrane | 212 | ||
The main types of transport in cells | 213 | ||
2: Diffusion and facilitated diffusion | 214 | ||
Diffusion | 214 | ||
Facilitated diffusion | 214 | ||
3: Osmosis – a special case of diffusion | 216 | ||
What is osmosis? | 216 | ||
Osmotic concentrations | 217 | ||
Osmosis in animal cells | 217 | ||
Osmosis in plant cells | 217 | ||
4: Active transport | 220 | ||
How does active transport work? | 220 | ||
Endocytosis and exocytosis | 221 | ||
Exam-style questions | 222 | ||
Chapter 4.2: Gas exchange | 224 | ||
1: The need for gas exchange surfaces | 226 | ||
Gas exchange in small organisms | 226 | ||
Gas exchange in large organisms | 227 | ||
Factors affecting the rate of diffusion | 227 | ||
2: The mammalian gas exchange system | 228 | ||
Effective gas exchange | 228 | ||
The human gas exchange system | 228 | ||
Gas exchange in the alveoli | 229 | ||
Breathing | 230 | ||
Protecting the lungs | 231 | ||
3: Gas exchange in insects | 232 | ||
Gas exchange in insects | 232 | ||
Very active insects | 233 | ||
4: Gas exchange in fish | 234 | ||
The gas exchange system in fish | 234 | ||
5: Gas exchange in plants | 236 | ||
The gas exchange surfaces in plants | 236 | ||
Controlling gas exchange | 237 | ||
Lenticels and gas exchange | 238 | ||
Thinking Bigger: Asthma | 240 | ||
Exam-style questions | 242 | ||
Chapter 4.3: Circulation | 244 | ||
1: Principles of circulation | 246 | ||
The need for transport | 246 | ||
Circulation systems | 246 | ||
2: The roles of the blood | 248 | ||
The components of the blood and their main functions | 248 | ||
Platelets | 249 | ||
3: Transporting oxygen and carbon dioxide | 250 | ||
Transport of oxygen | 250 | ||
Other respiratory pigments | 251 | ||
Transport of carbon dioxide | 252 | ||
The clotting of the blood | 252 | ||
The blood clotting cascade | 253 | ||
4: Blood circulation | 254 | ||
The blood vessels | 254 | ||
Arteries | 254 | ||
Capillaries | 255 | ||
Veins | 255 | ||
5: The human heart | 257 | ||
The structure of the heart | 257 | ||
How your heart works | 258 | ||
6: Controlling the heart | 260 | ||
The control of the heartbeat | 260 | ||
7: Atherosclerosis | 263 | ||
Cardiovascular diseases in the UK | 263 | ||
The formation of atherosclerosis | 263 | ||
Effect of atherosclerosis on health | 264 | ||
8: Risk factors for atherosclerosis | 266 | ||
Epidemiology | 266 | ||
Non-modifiable risk factors for atherosclerosis | 266 | ||
Modifiable (lifestyle) risk factors for atherosclerosis | 267 | ||
Links between factors | 268 | ||
9: Tissue fluid and lymph | 270 | ||
The formation of tissue fluid | 270 | ||
The formation of lymph | 271 | ||
Thinking Bigger: An Artificial Pacemaker | 272 | ||
Exam-style questions | 274 | ||
Chapter 4.4: Transport in plants | 276 | ||
1: Transport tissues in plants | 278 | ||
Xylem | 278 | ||
The structure of the phloem | 279 | ||
2: The uptake of water by plants | 281 | ||
Water from the soil | 281 | ||
Translocation of water | 281 | ||
Transpiration and the transpiration stream | 282 | ||
Factors affecting transpiration | 284 | ||
Root pressure | 285 | ||
3: Translocation of sucrose | 287 | ||
Translocation in the phloem | 287 | ||
Mass flow and pressure flow hypotheses | 288 | ||
Thinking Bigger: Turgor - Pressure Which Powers Plants | 290 | ||
Exam-style questions | 292 | ||
Maths skills | 294 | ||
Arithmetic and numerical computation | 294 | ||
Algebra | 295 | ||
Handling data | 295 | ||
Graphs | 298 | ||
Applying your skills | 298 | ||
Preparing for your exams | 300 | ||
Glossary | 306 | ||
Index | 316 |