12 Biology: Topic 3: Homeostasis
Topic 3: Homeostasis
In this topic, students examine some of the body systems, including the nervous, endocrine (hormonal), and excretory systems that play interdependent roles in the regulation of body processes such as body temperature, blood glucose levels, carbon dioxide levels in blood, and water balance. They relate the structure of the cells, tissues, and organs of these systems to their function.
Students develop an understanding of how homeostasis is the whole set of responses that occur in multicellular organisms, which enable their survival in their environment. They examine how the cells in an organism work efficiently within tolerance limits that determine the optimal conditions for growth and survival.
Students develop an understanding of how homeostasis is maintained through the stimulus–response model and may involve negative feedback responses. By comparing the nervous and endocrine (hormonal) systems and examining their modes of action, they understand how these systems operate together to maintain homeostasis for a number of regulated processes.
Students examine how biotechnology has contributed to advances in the treatment of the malfunctioning of the nervous and endocrine systems.
In this context, students use pathway/flow diagrams to communicate for specific purposes. They extend their scientific vocabulary through using biological terms accurately. They further develop their critical thinking skills by interpreting and evaluating data to construct logical conclusions and make reasonable predictions