Homeostasis

• What is the definition of homeostasis?

  Regulation of internal conditions for optimum function
• Why do enzymes require stable conditions?

  They cannot work well if conditions change
• What are the three internal conditions homeostasis regulates?

  Blood glucose, body temperature, water levels
• What are the key features of automatic control systems in the body?

  • Involves nervous system or hormones
  • Receptor cells detect environmental changes
  • Coordination Center processes information
  • Effector carries out the response
• What is a stimulus in the context of homeostasis?

  A change to the environment
• What role do receptor cells play in homeostasis?

  They detect changes in the environment
• What is the function of the Coordination Center?

  Processes information from receptor cells
• What is an effector in the context of homeostasis?

  A muscle or gland that carries out response
• How does homeostasis respond to exercise in an athlete?

  It maintains blood glucose, temperature, water
• What components are involved in the homeostasis process?

  1. Stimulus
  2. Receptor
  3. Coordination Center
  4. Effector
  5. Response
• What is the role of the pancreas in homeostasis?

  It acts as a Coordination Center
• What happens to blood glucose concentration during exercise?

  It can fall due to increased respiration
• How do internal and external conditions differ in homeostasis?

  Internal conditions are within the body
• Why is it important to maintain optimum conditions in the body?

  To ensure enzymes and cells function properly