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 internal conditions that homeostasis regulates in the body?

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

  • Involves nervous system or hormones
  • Detects changes via receptor cells
  • Processes information in a Coordination Center
  • Sends instructions to effectors (muscles or glands)
  • Maintains constant internal conditions
• 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?

  Receives and processes information from receptors
• What is the role of effectors in the homeostasis process?

  Carry out the response to maintain optimum levels
• What are the components of an automatic control system in homeostasis?

  1. Stimulus
  2. Receptor
  3. Coordination Center
  4. Effector
  5. Response
• What happens to blood glucose concentration during exercise?

  It can fall due to increased respiration
• How does sweating relate to homeostasis?

  It helps regulate body temperature
• What is the role of the brain in homeostasis?

  Acts as a Coordination Center
• Why is it important to maintain constant internal conditions?

  To ensure optimal function of cells
• How do internal and external conditions differ in homeostasis?

  Internal conditions are within the body, external are outside
• What is the significance of the term "optimum level" in homeostasis?

  It refers to ideal conditions for cell function