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Tantervek A-LEVEL Biology

A-LEVEL Biology

3 Subject Content

3.1 Biological molecules

3.3 Organisms exchange substances with their environment

3.4 Genetic information, variation and relationships between organisms

3.5 Energy transfers in and between organisms (A-level only)

3.6 Organisms respond to changes in their internal and external environments (A-level only)

3.6.1 Stimuli, both internal and external, are detected and lead to a response (A-level only)

3.6.2.1 Nerve impulses (A-level only)

3.6.2.2 Synaptic transmission (A-level only)

3.6.3 Skeletal muscles are stimulated to contract by nerves and act as effectors (A-level only)

3.6.4 Homeostasis is the maintenance of a stable internal environment (A-level only)

3.6.4.1 Principles of homeostasis and negative feedback (A-level only)

3.6.4.2 Control of blood glucose concentration (A-level only)

3.6.4.3 Control of blood water potential (A-level only)

3.7 Genetics, populations, evolution and ecosystems (A-level only)

3.8 The control of gene expression (A-level only)

AO1 Demonstrate knowledge and understanding of scientific ideas, processes, and techniques.

AO2 Apply knowledge and understanding of scientific ideas, processes, techniques and procedures: - in a theoretical context - in a practical context - when handling qualitative data - when handling quantitative data

AO3 Analyse, interpret and evaluate scientific information, ideas and evidence, including in relation to issues, to: - make judgements and reach conclusions - develop and refine practical design and procedures.

3.6.4.1 Principles of homeostasis and negative feedback (A-level only)

3.6.4.2 Control of blood glucose concentration (A-level only)

3.6.4.3 Control of blood water potential (A-level only)