Biology

Cells and Molecules

• Carbohydrate, lipid, protein and DNA structure and function and classification
• DNA replication
• Semi conservative replication
• Protein synthesis
• Cell membranes, transport – diffusion, facilitated diffusion, active transport and endo/exocytosis. Cell organelles
• Mitosis, mieosis process for gamete formation.

Ecology and Physiology

Ecosystems

• Abiotic (light temperature pH salinity soil type aspect) and biotic (intra and interspecific competition disease predation) factors in ecosystems
• Sampling techniques
• Transport in mammals
• Heart structure and function (cardiac cycle)
• Muscle structure and contraction
• The sliding filament hypothesis.

Inheritance and Co- ordination

• Genes, alleles, pheno and genotype
• Heterozygous and homozygous, recessive and dominant characteristics
• Monohybrid inheritance and pedigrees
• Enzymes, lock and key theory of action
• Active site structure and denaturation
• Neurone structure and motor and sensory neurones
• Synapses
• Nerve impulse, sodium potassium pump depolarisation action potential and repolarisation
• ‘All or nothing’ response

Unit assessment: 1hr 30 min theory paper 80% practical exam 20%