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B1.2 The nervous system GCSE items that can be used to define successful outcomes for peer and self assessment activities.

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Presentation on theme: "B1.2 The nervous system GCSE items that can be used to define successful outcomes for peer and self assessment activities."— Presentation transcript:

1 B1.2 The nervous system GCSE items that can be used to define successful outcomes for peer and self assessment activities

2 Using Exam pro items to support successful outcomes Version 2.0 Copyright © AQA and its licensors. All rights reserved. Learners will be able to test their progress against learning outcomes using questions taken from past AQA GCSE examinations. B1.2 The nervous system

3 Version 2.0 Copyright © AQA and its licensors. All rights reserved. The nervous system allows humans to react to their surroundings. (a)Sense organs have receptors. Receptors detect changes in the environment. Which word describes a change in the environment? Underline one answer. an effector a neurone a stimulus (1 mark) B1.2 The Nervous System June 2012 BL1FPJune 12

4 Version 2.0 Copyright © AQA and its licensors. All rights reserved. 1 (b) The photograph shows a baby. Labels A, B, C, D and E show some of the baby’s sense organs. B A E D C B1.2 The Nervous System June 2012 BL1FP

5 Version 2.0 Copyright © AQA and its licensors. All rights reserved. Answer each question by writing one letter, A, B, C, D or E, in each box. 1 (b) (i) Which sense organ has receptors sensitive to light? (1 mark) 1 (b) (ii) Which two sense organs have receptors sensitive to chemicals? and (2 marks) 1 (b) (iii) Which sense organ has receptors sensitive to changes in the baby’s position? (1 mark) B1.2 The Nervous System June 2012 BL??

6 Version 2.0 Copyright © AQA and its licensors. All rights reserved. 1 (c) Information from sense organ A is passed along nerve cells. The information is coordinated to produce a response. Which organ in the body coordinates the information?.................................................................................................................................. (1 mark) B1.2 The Nervous System June 2012 BL1FP

7 Mark scheme Version 2.0 Copyright © AQA and its licensors. All rights reserved. (a) a stimulus 1 (b)(i)A1 (b)(ii)CDeither order 2 (b)(iii)E 1 (c)Gbrain allow spinal cord / CNS / central nervous system do not allow spine 1 Total 6 B1.2 The Nervous System June 2012 BL1FPQ1

8 Higher Version 2.0 Copyright © AQA and its licensors. All rights reserved. The diagram shows the nervous pathway used to coordinate the knee-jerk reflex. When the person is hit at point P, the lower leg is suddenly raised. B1.2 The Nervous System June 2012BL1HP

9 Version 2.0 Copyright © AQA and its licensors. All rights reserved. (a) Name neurones A, B and C. A.................................................................................................................... B ……………...................................................................................................... C..................................................................................................................... (3 marks) (b) The receptor in the muscle in the leg is sensitive to a stimulus. Suggest the stimulus................................................................................................................................ (1 mark) B1.2 The Nervous System June 2012BL1HP

10 Version 2.0 Copyright © AQA and its licensors. All rights reserved. (c) Describe what happens at the synapse during this reflex. ……………………………………………………………………… ………………………………… (3 marks) B1.2 The Nervous System June 2012BL1HP

11 Version 2.0 Copyright © AQA and its licensors. All rights reserved. (a) A sensory1 B motor1 C relay1 ignore nerve / neuron(e) throughout accept afferent accept efferent accept intermediate (b) stretch allow pressure / pull / tension (in muscle)1 allow a hit at (point) P ignore pain (c) any three from: chemical (release) diffuses (across the gap /synapse) transmits impulse /information (across synapse)between neurones / nerve cells / namedaccept neurotransmitter /acetylcholineallow transmits signal / message if named, must be either sensory /A to relay / C or relay / C to motor/ B allow ‘to the next neurone’ 3 Total 7 B1.2 The Nervous System June 2012 Mark scheme

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