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Chapter Overview
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Practical skills
Ecosystems
Control systems
Origins of genetic variation
Modern genetics
Microbiology and pathogens
Energy for biological processes
Exchange and transport
Classification and biodiversity
Cells, viruses and reproduction of living things
Biological molecules
65 Lessons
390 Exercises
Practical skills
Experimental design and identifying variables
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Processing and presenting data
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Drawing conclusions and evaluations
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Ecosystems
Energy and ecosystems
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Changes in ecosystems
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Human effects on ecosystems
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Control systems
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Homeostasis and negative feedback
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Chemical control in mammals
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Chemical control in plants
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The structure of the nervous system
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Transmission of nerve impulses
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Effects of drugs on the nervous system
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Detection of light by mammals
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Origins of genetic variation
Factors impacting genetic diversity
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Inheritance: monohybrid, dihybrid and co-dominance
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Modern genetics
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Gene sequencing and genome projects
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Factors affecting gene expression
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Stem cells: Types and use in medicine
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Recombinant DNA technology
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Microbiology and pathogens
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Culturing microorganisms and growth curves
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The pathogenic effect of bacteria
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Types of antibiotics and their action
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Mechanisms of antibiotic resistance
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Other pathogenic agents: fungi, viruses and protists
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Problems of controlling endemic diseases
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The immune system
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Energy for biological processes
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Respiration: definition and glycolysis
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Aerobic respiration
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Anaerobic respiration in mammals, plants and yeast
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Photosynthetic pigments
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Stages of photosynthesis and chloroplast structure
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Factors affecting the rate of photosynthesis
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Exchange and transport
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Surface area to volume ratio and gas exchange
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Cell membrane structure and permeability
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Simple and facilitated diffusion
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Osmosis and investigating water potential
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Active transport and co-transport
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Gas exchange in fish, insects, plants and humans
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Mammalian circulatory system and blood vessels
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Haemoglobin and the Bohr effect
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Heart structure and the cardiac cycle
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Heart rate regulation and electrocardiograms
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Transport in plants - xylem
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Transport in plants - phloem
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Classification and biodiversity
Classification: phylogeny and taxonomy
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Types of natural selection
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Biodiversity: The index of diversity and agriculture
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Cells, viruses and reproduction of living things
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Eukaryotic cell structures
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Prokaryotic cell structures and viruses
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Viral life cycle, replication and control
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The cell cycle and mitosis
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Meiosis, genetic variation and mutations
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Sexual reproduction in mammals
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Sexual reproduction in plants
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Biological molecules
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Carbohydrates: types, structure and function
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The structure and function of lipids
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The structure and function of proteins
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Nucleic acids: DNA and RNA
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DNA replication
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DNA, genes and chromosomes
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RNA, protein synthesis and the genetic code
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Enzymes: activation energy, properties and structure
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Factors affecting enzyme activity
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Inorganic ions: iron, hydrogen, sodium and phosphate
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The properties and functions of water
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Popular Chapters in All Year Groups
Global challenges
Key concepts
Inheritance, variation and evolution
Practical skills
Exchange and transport
Biology practicals
Biological molecules
Homeostasis and response
Substance exchange
Genetics
Biodiversity and variation
Cells
Working scientifically
Microbiology and pathogens
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