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Distinguish negative and positive feedback
Distinguish excretion from egestion
Explain ultrafiltration and proximal reabsorption
Explain resting potential and action-potential stages
Trace cholinergic synaptic transmission
Compare taxis, kinesis and tropisms
Explain auxin effects in shoots and roots
Trace SAN, AVN and ventricular conduction
Explain sarcomere changes during contraction
Describe ATP as a nucleotide derivative
Explain photoionisation and photolysis
Explain fixation, reduction and RuBP regeneration
Follow glycolysis, link reaction and Krebs cycle
Work through each topic to complete the section.