C3.1 Integration of body systems

C3.1 Integration of body systems Quiz

IB Biology SL: Quiz

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5 questions, one answer each

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  1. 1. Which gland secretes melatonin?

    • A. Pituitary
    • B. Pineal
    • C. Adrenal
    • D. Thyroid

  2. 2. Which structure coordinates changes in heart rate?

    • A. Cerebellum
    • B. Medulla
    • C. Pineal gland
    • D. Spinal cord

  3. 3. In a pain reflex, the interneuron is found in the:

    • A. white matter of the brain
    • B. grey matter of the spinal cord
    • C. skin of the hand
    • D. cerebellum

  4. 4. Which is controlled by the enteric nervous system?

    • A. Swallowing
    • B. Egestion of faeces
    • C. Peristalsis in the intestine
    • D. Blinking

  5. 5. An increase in blood carbon dioxide concentration causes blood pH to:

    • A. rise
    • B. fall
    • C. stay the same
    • D. rise then fall

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