Biology
Cambridge A-Level 9700 · AS & A2 · 564 questions
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AS Level
280 Q
Cell structure
Microscopy, magnification and resolution
Structure of eukaryotic cells and organelles
Prokaryotic cells and viruses
Biological molecules
Water and carbohydrates
Lipids and their structure
Proteins and levels of structure
Biochemical tests for molecules
Enzymes
Mode of action of enzymes
Factors affecting enzyme activity
Enzyme inhibitors
Cell membranes and transport
Fluid mosaic model of membrane structure
Diffusion, facilitated diffusion and osmosis
Active transport, endocytosis and exocytosis
The mitotic cell cycle
Chromosomes and the process of mitosis
The cell cycle and uncontrolled division
Nucleic acids and protein synthesis
Structure of DNA and RNA
DNA replication
Transcription and translation
Transport in plants
Structure of xylem and phloem
Water transport and transpiration
Translocation in the phloem
Transport in mammals
The circulatory system and blood vessels
The heart and the cardiac cycle
Haemoglobin and oxygen transport
Gas exchange
Gas exchange in the mammalian lung
A2 Level
260 Q
Energy and respiration
ATP and its role as an energy currency
Glycolysis, the Krebs cycle and oxidative phosphorylation
Anaerobic respiration
Respiratory substrates and the respiratory quotient
Photosynthesis
The light-dependent reactions
The light-independent reactions (Calvin cycle)
Limiting factors in photosynthesis
Homeostasis
Principles of homeostasis and negative feedback
Control of blood glucose concentration
The kidney and osmoregulation
Control of stomatal aperture
Coordination
The neurone and nervous transmission
Synapses and neurotransmitters
Hormonal coordination in mammals
Plant responses and control
Inherited change
Meiosis and genetic variation
Genetics and patterns of inheritance
Gene control and mutation
Selection and evolution
Variation and its causes
Natural and artificial selection
Evolution, speciation and the Hardy-Weinberg principle