1. Cell as a unit of life Cell theory (4) Types of cells Types and specialized of cell prokaryoteseukaryotes Plant cell Animal cell animal plant meristem permanent ground tissue vascular - Nerve - Epithelial - Connective - Muscle differences

2. Biocatalysis Properties and mechanisms Properties of enzyme Mechanism of activation energy ! Activation energy models Lock and key 2 hypothesis Induce fit cofactors - Types of cofactors inhibition reversible irreversible competitive Non- competitive Enzyme classification

3. Gaseous exchange and its control animalplant Organ & structures alveolus haemoglobin Gas transportation Oxygen dissociation curve myoglobin Foetus & adult Bohr effect breathing stoma openclose 2 hypothesis 1.Sugar accumulation 2.K+ concentration O2 CO2

4. Mammalian heart & its control Structure Initiation factors affecting Cardiac cycle Heart beat Cardiovascular Diseases Hypertension Myocardial infarction arteriosclerosis Cardiac output Electrocardiogram

5. Homeostatic organ Liver Role Control of Blood glucose level Liver structure Homeostatic function Carbohydrate metabolism detoxification transamination deamination Formation of urea Ornithine/urea cycle kidney

6. Nervous system organization Basic unit : neuron Central nervous system components Peripheral nervous system somaticautonomic Symphatetic parasymphatetic Generation of action potential from resting stage Transmission of impulse synapse structuresmechanism