90929 outline

Achievement Standard 90929

Demonstrate understanding of biological ideas relating to a mammal as a consumer

External standard - 3 credits

The biological ideas relating to mammals as consumers will be selected from:

• related life process
• circulatory system - how food and oxygen is transported to every cell and waste products removed from each cell
• digestive system - organ system responsible breaking down food (molecules) so that it can be carried around the body by the circulatory system to the cells
• respiration - process which allows our cells to produce energy using glucose and oxygen
• structural components

• the alimentary canal, buccal cavity (mouth – including structure of a generalised tooth), salivary glands, oesophagus, stomach, duodenum, bile duct, liver, gall bladder, pancreas, pancreatic duct, ileum, caecum, appendix, colon, rectum, anus
• heart, vein, arteries and capillaries
• the functioning of the structural components
• compare the generalised digestive system of herbivores, omnivores and carnivores
• the overall functioning of the life process
• relate the processes of digestion, circulation and respiration to each other and to the overall survival of the organisms

Life process related to mammals as consumers will be selected from:

• Processing food
• physical digestion - teeth and stomach
• chemical digestion - enzyme action
• practical work related to digestive enzymes
• the effect of temp and pH on enzyme activity
• Absorption
• villus role and structure
• role of microvilli, capillary network and lacteal 
• Assimilation
• Egestion