Principles of Homeostasis

Principles of Homeostasis Quiz

Spec 4.5.1 · AQA GCSE Biology: Quiz

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  1. 1. What is homeostasis?

    • A. The production of hormones only
    • B. The regulation of internal conditions to maintain optimum conditions for function
    • C. The process of digestion
    • D. The division of cells by mitosis

  2. 2. Which of these is NOT one of the three main things controlled by homeostasis mentioned in the specification?

    • A. Blood glucose concentration
    • B. Body temperature
    • C. Water levels
    • D. Height

  3. 3. In a control system, what is the role of an effector?

    • A. To detect a stimulus
    • B. To process information
    • C. To bring about a response, such as a muscle contracting or a gland secreting a hormone
    • D. To transport oxygen

  4. 4. Put the following in the correct order for a homeostatic response: effector, receptor, response, coordinator, stimulus.

    • A. Stimulus, receptor, coordinator, effector, response
    • B. Receptor, stimulus, effector, coordinator, response
    • C. Response, effector, coordinator, receptor, stimulus
    • D. Stimulus, effector, receptor, coordinator, response

  5. 5. A rise in blood glucose is detected, processed by the pancreas, and corrected by cells taking up glucose. A rise in body temperature is detected, processed by the brain, and corrected by sweat glands. What do both examples show about homeostatic control systems?

    • A. Both use exactly the same coordination centre
    • B. Both follow the same underlying pattern of receptor, coordination centre and effector, even though the specific structures differ
    • C. Only one of the two is a true homeostatic mechanism
    • D. Neither example involves an effector

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