Coordination and Response Past Papers PDF

# Chapter 14 Coordination and response ## 14.1 Nervous control in humans 777. 0610_m22_qp_22 Q: 25 Which numbered parts form the central nervous system? - **1** - **2** - **3** A 1 only B 1 and 2 C 2 and 3 D 3 only ## 326 778. 0610_m21_qp_22 Q: 25 What is a function of a synapse? A to allow imp...

# Chapter 14 Coordination and response ## 14.1 Nervous control in humans 777. 0610_m22_qp_22 Q: 25 Which numbered parts form the central nervous system? - **1** - **2** - **3** A 1 only B 1 and 2 C 2 and 3 D 3 only ## 326 778. 0610_m21_qp_22 Q: 25 What is a function of a synapse? A to allow impulses to travel in both directions B to ensure impulses travel in one direction C to release vesicles into the synaptic gap D to transport neurotransmitters by osmosis 779.0610_w21_qp_21 Q: 24 Which situation is a voluntary action? A an increase in heart rate in response to danger B blinking to avoid injury to the eye C raising your hand to answer a question D sweating in hot weather ## Chapter 14. Coordination and response 780.0610_w21_qp_22 Q: 25 The structures listed are part of the nervous system. 1. brain 2. effector 3. receptor 4. relay neurone In a reflex arc, which structures are connected to a motor neurone by synapses? A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4 781.0610 w21 qp 23 Q: 25 What happens to the muscles in the iris when a person moves from a brightly lit room to a dimly lit room? A The circular muscles and the radial muscles relax. B The circular muscles contract and the radial muscles relax. C The circular muscles and the radial muscles contract. D The circular muscles relax and the radial muscles contract. ## 14.1. Nervous control in humans 782. 0610_m20_qp_22 Q: 26 The diagram shows a synapse. Where are vesicles containing neurotransmitter molecules found? - **A** - **B** - **C** - **D** 783.0610_p20_qp_20 Q: 21 Which of the following can be an effector in a reflex arc? A a gland B a light receptor C the brain D the spinal cord ## 327 ## 328 784. 0610_s20_qp_21 Q: 24 The diagram shows a synapse. - **W** - **X** - **Y** - **Z** What are the labelled parts? | | W | X | Y | Z | |-----|----------------------------|-------------------------------|-------------------------|-----------------------------| | A | synaptic cleft | neurotransmitter receptor | vesicle | receptor | | B | synaptic cleft | receptor | vesicle | neurotransmitter | | C | vesicle | neurotransmitter | synaptic cleft | receptor | | D | vesicle | receptor | synaptic cleft | neurotransmitter | 785. 0610_s20_qp_23 Q: 23 The diagram shows a synapse between a motor neurone and a relay neurone. - **P** - **Q** What passes from P to Q? A an electrical impulse B an enzyme C a hormone D a neurotransmitter ## Chapter 14. Coordination and response ## 14.1. Nervous control in humans 786. 0610_w20_qp_21 Q: 23 Which is the correct sequence of structures through which a nerve impulse passes in a reflex arc? A effector → motor neurone → relay neurone → sensory neurone → receptor B effector → sensory neurone → relay neurone → motor neurone → receptor C receptor → motor neurone → relay neurone → sensory neurone → effector D receptor → sensory neurone → relay neurone → motor neurone → effector 787.0610_w20_qp_22 Q: 23 Which structure contains relay neurones? A gland B muscle C spinal cord D synapse 788. 0610_w20_qp_22 Q: 24 A man injures his arm in an accident. Afterwards, he can move his hand but cannot feel objects touching his hand. What could cause this? A Both sensory and motor neurones are cut. B Effectors are damaged. C Motor neurones are cut. D Sensory neurones are cut. 789.0610_w20_qp_23 Q: 23 Sensory neurones conduct impulses from A the brain and spinal cord to muscles. B one sense organ to another sense organ. C sense organs to the brain and spinal cord. D muscles to sense organs. ## 329 ## Chapter 14. Coordination and response 790. 0610_s19_qp_21 Q: 24 The components of a reflex arc are shown in the flow diagram. - **receptor** - **sensory neurone** - **synapse** - **relay neurone** - **synapse** - **motor neurone** - **effector** Which component is responsible for ensuring that the nerve impulses travel in one direction only? A motor neurone B receptor C sensory neurone D synapse 791. 0610_s19_qp_21 Q: 28 The diagram represents a synapse in the brain involved in the perception of pain. Which labelled molecule represents heroin? - **A** - **B** - **C** - **D** 792. 0610_s19_qp_22 Q: 24 Which statement about involuntary responses is correct? A They always result in the same response to the same stimulus. B They are learned responses. C They are slower than voluntary responses. D They never use voluntary muscles. ## 14.1. Nervous control in humans 793. 0610_s19_qp_22 Q: 28 The diagram shows a synapse. Heroin affects the neurone. Which labelled part does the heroin directly affect? - **A** - **B** - **C** - **D** 794. 0610_s19_qp_23 Q: 24 The diagrams show the structures on each side of a synaptic cleft. Which diagram is correctly labelled? - **A** - **B** - **C** - **D** ## 330 ## 331 ## 332 795. 0610_w19_qp_21 Q: 22 The neurones at synapses contain vesicles. Which type of substance is found inside the vesicles? A enzyme B chromosomes C neurotransmitter D steroid 796. 0610_w19_qp_22 Q: 22 Which process transmits an impulse across a synapse? A active transport B diffusion C gravity D osmosis 797.0610_w19_qp_23 Q: 22 The diagram shows a synapse. - **neurone 1** - **neurone 2** Heroin is a drug that can bind with receptors in a synapse. What is the most likely effect heroin will have on the synapse? A cause the impulse to travel back along neurone 1 B prevent neurotransmitter binding with receptors on neurone 2 C stop the impulse being generated in neurone 1 D transfer the impulse to a different neurone other than neurone 2 ## Chapter 14. Coordination and response ## 14.1. Nervous control in humans 798. 0610_m18_qp_22 Q: 19 A boy accidentally touches a very hot object and immediately takes his hand away. In this reflex action, what is the effector? A a heat receptor in his hand B a motor neurone C a muscle in his arm D the spinal cord 799. 0610_s18_qp_21 Q: 23 Four processes occur when impulses cross a synapse. - **P** neurotransmitter diffuses across the gap - **Q** neurotransmitter binds with receptors - **R** impulse stimulates vesicles - **S** release of neurotransmitter What is the correct sequence for these processes? A P→R→Q→S B R→P→Q→S C S→R→P→Q D S→Q→R→P ## 333 ## Chapter 14. Coordination and response 800.0610_s18_qp_22 Q: 23 The diagram shows the structures in a reflex arc. - **X** What is X? A effector B relay neurone C sensory neurone D synapse 801. 0610 s18 qp 23 Q: 23 What is the correct sequence in a reflex action? A receptor → stimulus → motor neurone → relay neurone → sensory neurone → effector B receptor → stimulus → sensory neurone → relay neurone → motor neurone → effector C stimulus → receptor motor neurone → relay neurone → sensory neurone → effector D stimulus → receptor → sensory neurone → relay neurone → motor neurone effector 802. 0610_w18_qp_22 Q: 23 What does the central nervous system consist of? A brain, spinal cord and peripheral nerves B brain and spinal cord only C brain only D spinal cord and peripheral nerves only ## 334 ## 14.1. Nervous control in humans 803. 0610_s17_qp_21 Q: 23 The steps to produce a reflex action where the hand is withdrawn from a hot object are shown. 1. Nerve impulses pass from the sensory neurone to the relay neurone. 2. Nerve impulses pass from motor neurone to the effector. 3. Nerve impulses pass from the receptor to the neurone. What is the correct sequence of steps? A 1→2→3 B 2→1→3 C 3→1→2 D 3→2→1 804. 0610_s17_qp_22 Q: 23 The diagram shows a reflex arc. - **X** What is X? A a relay neurone B a synapse C the effector D the receptor ## 335 ## Chapter 14. Coordination and response 805. 0610_s17_qp_23 Q: 23 The diagram shows a synapse. - **X** What do the dots at X represent? A neurotransmitter B receptor molecule C synaptic cleft D vesicle 806. 0610_w17_qp_21 Q: 26 The diagram shows a synapse in a reflex arc. - **P** - **Q** What are the identities of the two neurones and in which direction does the neurotransmitter pass? | | neurone P | neurone Q | direction of passage of neurotransmitter | |-----|-----------|-----------|----------------------------------------| | A | motor | relay | P→Q | | B | motor | sensory | P→Q | | C | relay | motor | Q→P | | D | relay | sensory | Q→P | 807.0610_p16_qp_20 Q: 21 Which of the following can be an effector in a reflex arc? A a gland B a light receptor C the brain D the spinal cord ## 336 ## 14.1. Nervous control in humans 808.0610_s16_qp_21 Q: 25 The diagram represents a simple reflex arc. - **spinal cord** - **R** - **P** - **Q** What is the sequence of nerve cells through which an impulse passes during a reflex action? | | first | last | |-----|-------|------| | A | P | R | | B | Q | P | | C | Q | R | | D | R | Q | ## 337