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Intervensi biology Form 5 chapter 3

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Intervensi biology Form 5 chapter 1

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Intervensi biology Form 5 chapter 3

  1. 1. INTERVENTION – BIOLOGY CHAPTER 12 CHAPTER 12 : COORDINATION AND RESPONSE 1. The figure below shows a reflex arc. (a) Fill in the blanks. Step Description of a reflex action 1 The sharp needle that pokes the finger act as a ………………………. 2 The sensory ………………….. for pain at the skin receives the stimulus. 3 The sensory receptor produces ……………….. impulse. 4 The impulse is sent by the ………………… neuron to the spinal cord. 5 The afferent neuron will synapse with the …………………… found in the …………….. matter of the spinal cord. 6 The interneuron will form a synapse with the ………………… neuron. 7 The efferent neuron will bring the nerve impulse to the ………………… which consists of muscles. 8 The muscles will ……………… and pull the hand away from the stimulus. (b) Name the structure labelled J – N. Label Name JKLMN needle N J L K M
  2. 2. INTERVENTION – BIOLOGY CHAPTER 12 Corrective mechanism Corrective mechanism Pancreas secretes glucagon Normal glucose level glucose level rises glucose level falls glucose level is lowered glucose level rises Normal glucose level

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