bio paper 2

• What is the definition of homeostasis?

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

  They cannot work well with changing conditions
• What are the three internal conditions homeostasis regulates in the human body?

  Blood glucose, 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 optimum 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?

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

  A muscle or gland that carries out a response
• What happens after the Coordination Center processes information?

  It sends instructions to the effector
• What is the sequence of components in an automatic control system?

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

  To carry out the response to maintain balance
• How does exercise affect homeostasis in the body?

  It can lower blood glucose and raise temperature
• What can cause the blood glucose concentration to fall?

  Respiration using glucose for energy
• Why is it important to maintain constant internal conditions?

  To ensure enzymes and cells function properly
• How do internal and external conditions relate to homeostasis?

  Both can trigger responses to maintain balance