Coordination and response — Paper 1 · IGCSE Sciences - Co-ordinated (Double) 0654

3 The diagram represents part of the human nervous system. X Y What name is given to X and Y together? A brain B central nervous system C nerve D spinal cord

1 marks

Answer: B

This question in 0654/11 May/June 2005

9 Which shows the sequence that occurs when a person becomes aware of light? A impulse → stimulus → receptor → spinal cord B receptor → stimulus → impulse → brain C stimulus → impulse → receptor → spinal cord D stimulus → receptor → impulse → brain

1 marks

Answer: D

This question in 0654/11 May/June 2005

3 The diagram shows two stages in the growth of a plant inside a black box. Light enters the box through a hole in one side. Which part is the effector? A B C light light D day 1 day 5

1 marks

Answer: B

This question in 0654/11 May/June 2006

3 Which two parts of the eye help to focus light rays? A cornea and iris B cornea and lens C iris and retina D lens and retina

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2006

9 The diagram shows how the eye and a muscle of a person are linked when responding to a change in the environment. P R eye Q muscle What do P, Q and R represent? P Q R A effector stimulus receptor B impulses central nervous system impulses C receptor central nervous system effector D stimulus receptor effector

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2006

3 The diagram shows a synovial joint. Which area contains synovial fluid? A B C D

1 marks

Answer: B

This question in 0654/11 May/June 2007

4 Which structures make up the nervous system? A brain, nerves, spinal cord B effectors, impulses, spinal cord C impulses, muscles, nerves D effectors, receptors, stimuli

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2007

8 The diagram shows a section through the elbow joint. X What is the purpose of the liquid at X? A to carry oxygen B to cause movement C to cool the joint D to reduce friction

1 marks

Answer: D

This question in 0654/11 May/June 2008

3 Which shows the sequence that occurs when a person touches a hot object? A impulse → stimulus → receptor → spinal cord B receptor → stimulus → impulse → brain C stimulus → impulse → receptor → spinal cord D stimulus → receptor → impulse → brain

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2008

8 The diagram shows a synovial joint. S P R Q Which two parts prevent friction between the bones? A P and Q B P and R C Q and R D Q and S

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2008

8 The diagram shows a section through the front of the eye. Xx WwW ) Where are muscles found? W X Y Z A x v Xx x key B x Jv Jv Jv JY = found Cc Jv x J x X = not found D Jv Jv x x

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2009

8 The diagram shows a person holding an apple. If the person decides to lift the apple, which labelled part is the effector? D apple A muscle C hand B nerve

1 marks

Answer: A

This question in 0654/11 May/June 2010

7 The diagram shows a person holding an apple. If the person decides to lift the apple, which labelled part is the effector? D apple A muscle C hand B nerve

1 marks

Answer: A

This question in 0654/12 May/June 2010

9 The diagram shows two stages in an attempt to kill a fly. What else does the diagram show? A The fly converts impulses to stimuli. B The fly responds to a stimulus. C The hand produces impulses. D The hand is a receptor.

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2010

13 The diagram shows two stages in an attempt to kill a fly. What else does the diagram show? A The fly converts impulses to stimuli. B The fly responds to a stimulus. C The hand produces impulses. D The hand is a receptor.

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2010

12 The diagram shows two stages in an attempt to kill a fly. What else does the diagram show? A The fly converts impulses to stimuli. B The fly responds to a stimulus. C The hand produces impulses. D The hand is a receptor.

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2010

3 The diagram shows a synovial joint. S P R Q Which two parts prevent friction between the bones? A P and Q B P and R C Q and R D Q and S

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2011

8 The diagram shows a section through the eye. When a person moves from shade into bright sunlight, a reflex action takes place. Where does the response to bright sunlight occur? C B D A

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2011

9 The diagram shows a section through the eye. When a person moves from shade into bright sunlight, a reflex action takes place. Where does the response to bright sunlight occur? C B D A

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2011

2 The diagram shows a synovial joint. S P R Q Which two parts prevent friction between the bones? A P and Q B P and R C Q and R D Q and S

1 marks

Answer: A

This question in 0654/13 Oct/Nov 2011

7 The diagram shows a section through the eye. When a person moves from shade into bright sunlight, a reflex action takes place. Where does the response to bright sunlight occur? C B D A

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2011

7 A person touches a hot object which triggers a reflex action. In which order does the signal travel in the reflex arc? A relay neurone → spinal cord → sensory neurone B sensory neurone → spinal cord → motor neurone C spinal cord → sensory neurone → stimulus D stimulus → motor neurone → spinal cord

1 marks

Answer: B

This question in 0654/11 May/June 2012

8 A person touches a hot object which triggers a reflex action. In which order does the signal travel in the reflex arc? A relay neurone → spinal cord → sensory neurone B sensory neurone → spinal cord → motor neurone C spinal cord → sensory neurone → stimulus D stimulus → motor neurone → spinal cord

1 marks

Answer: B

This question in 0654/12 May/June 2012

8 A person touches a hot object which triggers a reflex action. In which order does the signal travel in the reflex arc? A relay neurone → spinal cord → sensory neurone B sensory neurone → spinal cord → motor neurone C spinal cord → sensory neurone → stimulus D stimulus → motor neurone → spinal cord

1 marks

Answer: B

This question in 0654/13 May/June 2012

8 What does the central nervous system consist of? A brain and peripheral nerves B brain and spinal cord C brain only D spinal cord only

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2013

8 What does the central nervous system consist of? A brain and peripheral nerves B brain and spinal cord C brain only D spinal cord only

1 marks

Answer: B

This question in 0654/12 Oct/Nov 2013

1 A student was walking through some grass when he saw an object with a hole in its outer covering. When touched, a jet of fluid came out of the hole and the object moved away. Which characteristics of living organisms has the object shown? A excretion, nutrition B movement, respiration C movement, sensitivity D nutrition, sensitivity

1 marks

Answer: C

This question in 0654/13 Oct/Nov 2013

6 Which structures make up the nervous system? A brain, nerves, spinal cord B effectors, impulses, spinal cord C impulses, muscles, nerves D effectors, receptors, stimuli

1 marks

Answer: A

This question in 0654/13 Oct/Nov 2013

8 The diagram shows a nerve cell and associated structures. muscle K J What type of nerve cell is it and in which direction do impulses travel? type of nerve direction of cell impulse A motor J to K B motor K to J C sensory J to K D sensory K to J

1 marks

Answer: A

This question in 0654/13 Oct/Nov 2013

9 A plant shoot grows towards a light source. This an example of what? A geotropism B homeostasis C photosynthesis D phototropism

1 marks

Answer: D

This question in 0654/11 May/June 2014

9 You suddenly pull your finger away if you accidentally touch something hot. Which process controls this sudden response? A a muscular movement by the spinal cord B a nervous reflex, not directed by the brain C reflex muscle action independent of any nervous or brain control D your brain, without you thinking about it

1 marks

Answer: B

This question in 0654/12 May/June 2014

8 A plant shoot grows towards a light source. This an example of what? A geotropism B homeostasis C photosynthesis D phototropism

1 marks

Answer: D

This question in 0654/13 May/June 2014

8 When a plant organ grows towards a stimulus, its response is described as ‘positive’. When it grows away from a stimulus, its response is described as ‘negative’. A plant root is placed horizontally in the dark. Which response would it show? A negative geotropism B negative phototropism C positive geotropism D positive phototropism

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2014

8 When a plant organ grows towards a stimulus, its response is described as ‘positive’. When it grows away from a stimulus, its response is described as ‘negative’. A plant root is placed horizontally in the dark. Which response would it show? A negative geotropism B negative phototropism C positive geotropism D positive phototropism

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2014

7 Which structure carries nerve impulses away from the central nervous system? A motor neurone B relay neurone C sensory neurone D spinal cord

1 marks

Answer: A

This question in 0654/13 Oct/Nov 2014

8 A student observes some grass seedlings which have light coming from one side only. He believes that the tips of the seedlings have a receptor for light. He removes the tips of the seedlings and waits for a day. Which change in the seedlings would show that he is right? A They grow away from the light. B They grow towards the light. C They stop growing. D They grow straight up.

1 marks

Answer: D

This question in 0654/13 Oct/Nov 2014

8 A person touches a hot object which triggers a reflex action. In which order does the signal travel in the reflex arc? A relay neurone → spinal cord → sensory neurone B sensory neurone → spinal cord → motor neurone C spinal cord → sensory neurone → stimulus D stimulus → motor neurone → spinal cord

1 marks

Answer: B

This question in 0654/11 May/June 2015

8 A person touches a hot object which triggers a reflex action. In which order does the signal travel in the reflex arc? A relay neurone → spinal cord → sensory neurone B sensory neurone → spinal cord → motor neurone C spinal cord → sensory neurone → stimulus D stimulus → motor neurone → spinal cord

1 marks

Answer: B

This question in 0654/12 May/June 2015

9 A person touches a hot object which triggers a reflex action. In which order does the signal travel in the reflex arc? A relay neurone → spinal cord → sensory neurone B sensory neurone → spinal cord → motor neurone C spinal cord → sensory neurone → stimulus D stimulus → motor neurone → spinal cord

1 marks

Answer: B

This question in 0654/13 May/June 2015

10 To which environmental stimulus is a plant root responding when it grows downwards? A a decrease in soil water content B light falling on the leaves of the plant C rising temperature D the force of gravity

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2015

10 In a reflex arc, which structure carries nerve impulses towards the central nervous system? A effector B motor neurone C sensory neurone D spinal cord

1 marks

Answer: C

This question in 0654/13 May/June 2016

1 The plant Mimosa pudica grows in Central and South America. Its leaves close up rapidly when touched. Which two characteristics are shown by this action? A growth and movement B growth and sensitivity C movement and sensitivity D respiration and growth

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2016

8 The diagram shows a neurone and associated structures. muscle K J What type of neurone is shown and in which direction do impulses travel? direction of type of neurone impulse A motor J to K B motor K to J C sensory J to K D sensory K to J

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2016

8 The diagram shows a neurone and associated structures. muscle K J What type of neurone is shown and in which direction do impulses travel? direction of type of neurone impulse A motor J to K B motor K to J C sensory J to K D sensory K to J

1 marks

Answer: A

This question in 0654/12 Oct/Nov 2016

8 The diagram shows a neurone and associated structures. muscle K J What type of neurone is shown and in which direction do impulses travel? direction of type of neurone impulse A motor J to K B motor K to J C sensory J to K D sensory K to J

1 marks

Answer: A

This question in 0654/13 Oct/Nov 2016

7 Which structure carries nerve impulses away from the central nervous system? A motor neurone B relay neurone C sensory neurone D spinal cord

1 marks

Answer: A

This question in 0654/11 May/June 2017

7 Which structure carries nerve impulses away from the central nervous system? A motor neurone B relay neurone C sensory neurone D spinal cord

1 marks

Answer: A

This question in 0654/12 May/June 2017

12 Four plants with straight stems were placed in four black boxes, some with holes cut in the side. Which diagram shows positive phototropism? A B C D

1 marks

Answer: B

This question in 0654/12 May/June 2017

7 Which structure carries nerve impulses away from the central nervous system? A motor neurone B relay neurone C sensory neurone D spinal cord

1 marks

Answer: A

This question in 0654/13 May/June 2017

4 The diagram shows a reflex arc. Q P bee R If the neurone at R is stimulated, what effect does this have on the neurones at P and Q? effect on P effect on Q A no effect no effect B no effect stimulated C stimulated no effect D stimulated stimulated

1 marks

Answer: A

This question in 0654/11 Oct/Nov 2017

9 In the geotropic and phototropic responses of a plant shoot, does the shoot grow towards or away from the stimulus? geotropism phototropism A away from away from B away from towards C towards away from D towards towards

1 marks

Answer: B

This question in 0654/13 Oct/Nov 2017

8 A person touches a hot object and pulls their hand away. This is a reflex action. Which is the correct pathway? A stimulus → motor neurone → relay neurone → sensory neurone → response B stimulus → relay neurone → motor neurone → sensory neurone → response C stimulus → sensory neurone → relay neurone → motor neurone → response D stimulus → sensory neurone → motor neurone → relay neurone → response

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2018

9 To which environmental stimulus is a plant root responding when it grows downwards? A a decrease in soil water content B light falling on the leaves of the plant C rising temperature D the force of gravity

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2018

9 To which environmental stimulus is a plant root responding when it grows downwards? A a decrease in soil water content B light falling on the leaves of the plant C rising temperature D the force of gravity

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2018

8 To which environmental stimulus is a plant root responding when it grows downwards? A a decrease in soil water content B light falling on the leaves of the plant C rising temperature D the force of gravity

1 marks

Answer: D

This question in 0654/13 Oct/Nov 2018

9 In a reflex arc, which structure carries nerve impulses towards the central nervous system? A effector B motor neurone C sensory neurone D spinal cord

1 marks

Answer: C

This question in 0654/11 May/June 2019

9 In a reflex arc, which structure carries nerve impulses towards the central nervous system? A effector B motor neurone C sensory neurone D spinal cord

1 marks

Answer: C

This question in 0654/12 May/June 2019

9 In a reflex arc, which structure carries nerve impulses towards the central nervous system? A effector B motor neurone C sensory neurone D spinal cord

1 marks

Answer: C

This question in 0654/13 May/June 2019

9 A growing seedling was held in position as shown in the diagram. root shoot bean seed It was then placed in the dark for 3 days. Which diagram shows the shape of the root and the shoot of the same seedling after the 3 days? A B C D

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2019

9 Which diagram shows the sequence of neurones in a reflex arc, and the direction of travel of the electrical signal? A signal direction B signal direction C signal direction D signal direction

1 marks

Answer: A

This question in 0654/13 Oct/Nov 2019

9 A plant shoot grows towards a light source. This is an example of what? A gravitropism B homeostasis C transpiration D phototropism

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2020

9 A plant shoot grows towards a light source. This is an example of what? A gravitropism B homeostasis C transpiration D phototropism

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2020

9 A plant shoot grows towards a light source. This is an example of what? A gravitropism B homeostasis C transpiration D phototropism

1 marks

Answer: D

This question in 0654/13 Oct/Nov 2020

9 A student is in a dangerous situation and adrenaline is released into the blood. The table shows changes to pulse rate, breathing rate and pupil diameter. Which row correctly describes the effect of adrenaline? pulse rate breathing rate pupil diameter A decrease increase decrease B decrease decrease increase C increase increase increase D increase decrease decrease

1 marks

Answer: C

This question in 0654/12 May/June 2021

9 A student is in a dangerous situation and adrenaline is released into the blood. The table shows changes to pulse rate, breathing rate and pupil diameter. Which row correctly describes the effect of adrenaline? pulse rate breathing rate pupil diameter A decrease increase decrease B decrease decrease increase C increase increase increase D increase decrease decrease

1 marks

Answer: C

This question in 0654/13 May/June 2021

9 A person touches a hot object with their hand. They quickly pull their hand away. Which statement is correct? A The effector is their hand. B The effector is the hot object. C The receptor is in the muscles of their arm. D The receptor is in the skin of their hand.

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2021

9 A plant in a pot is placed on its side in a dark cupboard. The shoots grow upwards. What is this an example of? A decomposition B gravitropism C photosynthesis D phototropism

1 marks

Answer: B

This question in 0654/11 May/June 2022

9 When a seed germinates in the soil, the root grows downwards. Which type of response is the root exhibiting? A negative gravitropism B negative phototropism C positive gravitropism D positive phototropism

1 marks

Answer: C

This question in 0654/11 Oct/Nov 2022

9 Which row shows a person’s response to a ‘fight or flight’ situation? breathing rate pulse rate / breaths per minute / beats per minute A 12 70 B 12 140 C 18 70 D 18 140

1 marks

Answer: D

This question in 0654/12 Oct/Nov 2022

1 The diagram shows how an aquatic carnivorous bladderwort plant reacts to tiny aquatic organisms that swim by. animal is digested aquatic carnivorous by juices produced bladderwort plant contains air animal swims in by the plant plant stalk Which characteristics of living organisms are shown by this plant? A excretion and growth B growth and sensitivity C nutrition and excretion D nutrition and sensitivity

1 marks

Answer: D

This question in 0654/12 Feb/March 2023

9 A person leaves an air conditioned building. The temperature of the air conditioned building is 16 °C. The outside temperature is 39 °C. Which statement describes one response to the change in temperature? A The blood detects the change in temperature and the person starts to shiver. B The blood detects the change in temperature and the person starts to sweat. C The brain detects the change in temperature and the person starts to shiver. D The brain detects the change in temperature and the person starts to sweat.

1 marks

Answer: D

This question in 0654/13 May/June 2023

9 The diagram shows a section through the skin. Q P R Which row contains the correct names of the structures labelled P, Q and R? P Q R A sweat gland hair blood vessel B receptor hair receptor C sweat gland hair erector muscle receptor D receptor hair erector muscle blood vessel

1 marks

Answer: C

This question in 0654/12 Oct/Nov 2023

9 The graphs show the pupil diameter and heart rate of a person over a period of 30 minutes. The person was given an unexpected shock at one point during the 30 minutes. pupil diameter 0 5 10 15 20 25 30 time / min heart rate 0 5 10 15 20 25 30 time / min At which time did the person experience a shock causing them to release adrenaline? A 5 minutes B 10 minutes C 15 minutes D 25 minutes

1 marks

Answer: D

This question in 0654/13 Oct/Nov 2023

9 The diagram shows three different neurones which form the reflex arc. X Y Z Which row correctly identifies X, Y and Z? neurone X neurone Y neurone Z A motor relay sensory B motor sensory relay C sensory motor relay D sensory relay motor

1 marks

Answer: B

This question in 0654/12 Feb/March 2024

9 A plant is placed in a box. The box has a hole so that the plant is illuminated from one side. The plant is observed after one week. The result is shown. light light at start after one week What explains the growth of the plant after one week? A Plant shoots grow towards light, showing phototropism. B Plant shoots grow towards gravity, showing gravitropism. C Plant shoots grow towards light, showing gravitropism. D Plant shoots grow towards gravity, showing phototropism.

1 marks

Answer: A

This question in 0654/11 May/June 2024

1 Which two characteristics of living organisms are demonstrated by gravitropism? A growth and nutrition B growth and sensitivity C respiration and nutrition D respiration and sensitivity

1 marks

Answer: B

This question in 0654/12 May/June 2024

1 Which two characteristics of living organisms are demonstrated by gravitropism? A growth and nutrition B growth and sensitivity C respiration and nutrition D respiration and sensitivity

1 marks

Answer: B

This question in 0654/13 May/June 2024

9 In which order does an impulse pass along neurones during a reflex action? A motor  relay  sensory B motor  sensory  relay C sensory  motor  relay D sensory  relay  motor

1 marks

Answer: D

This question in 0654/11 Oct/Nov 2024

9 Which activities increase the secretion of adrenaline in the human body? running to relaxing in Wrightentag catch a bus the sun horror film A v x v B x v v Cc J x x D x v x

1 marks

Answer: A

This question in 0654/12 Oct/Nov 2024

9 Which activities increase the secretion of adrenaline in the human body? running to relaxing in Wrightentag catch a bus the sun horror film A v x v B x v v Cc J x x D x v x

1 marks

Answer: A

This question in 0654/13 Oct/Nov 2024

10 The diagram shows three types of neurone. P Q R Which order do impulses pass through the neurones in a reflex action? A P  R  Q B Q  P  R C R  P  Q D R  Q  P

1 marks

Answer: C

This question in 0654/12 May/June 2025

10 The diagram shows three types of neurone. P Q R Which order do impulses pass through the neurones in a reflex action? A P  R  Q B Q  P  R C R  P  Q D R  Q  P

1 marks

Answer: C

This question in 0654/13 May/June 2025

11 Which structures make up the mammalian nervous system? A brain, muscles, impulses B brain, nerves, spinal cord C effectors, muscles, spinal cord D impulses, effectors, nerves

1 marks

Answer: B

This question in 0654/11 Oct/Nov 2025