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General Biology: Homeostasis and Control Systems

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Termini in questo insieme (12)

  • What is homeostasis?

    Homeostasis is the maintenance of a stable internal environment despite external changes.

  • What role does the endocrine system play in homeostasis?

    The endocrine system regulates homeostasis by releasing hormones that control body functions.

  • What is the function of the nervous system in homeostasis?

    The nervous system detects changes and sends rapid signals to maintain homeostasis.

  • Define receptor nerve in homeostasis.

    A receptor nerve detects stimuli or changes in the environment and sends signals to the control center.

  • What is the control center in a homeostatic system?

    The control center processes information from receptors and sends commands to effectors to restore balance.

  • What is an effector in homeostasis?

    An effector is an organ or cell that acts to correct deviations from the set point.

  • Explain a negative feedback loop.

    A negative feedback loop reverses a change to return the system to its set point, maintaining stability.

  • Explain a positive feedback loop.

    A positive feedback loop amplifies a change, moving the system further from its set point temporarily.

  • What is homeostatic imbalance?

    Homeostatic imbalance occurs when the body cannot maintain stable internal conditions, leading to disease.

  • What is the role of insulin in metabolism?

    Insulin is a hormone that lowers blood glucose by promoting its uptake and storage, regulating metabolism.

  • Define metabolism.

    Metabolism is the sum of all chemical reactions in the body that maintain life.

  • What is metabolic rate?

    Metabolic rate is the speed at which the body uses energy to carry out metabolic processes.