The newest 6 of 6 written questions. Open one to see it on the real paper.
The speed of the nerve impulse in the sensory neurone of the arm is 74.0 m / s. The speed of the nerve impulse in the motor neurone is 1.51 times slower. Calculate the speed of the nerve impulse in the motor neurone. speed = m / s Give your answer to 3 significant figures.
See it on the paper →Some of the organs shown in Fig. 3.1 conduct electrical impulses through specialised cells. Name the specialised cells that conduct electrical impulses.
See it on the paper →Which term describes the ability to detect and respond to changes in the environment?
See it on the paper →Describe how nerve impulses are passed along neurones.
See it on the paper →Calculate the average reaction time for student B. Give your value to two significant figures. s
See it on the paper →A student describes a nerve impulse. The description is not correct. ‘A nerve impulse is a chemical signal that passes along nerve cells called connectors.’ Circle the two words in the student’s description that are not correct.
See it on the paper →Candidates often selected from the diagram again here, rather than referring to their own knowledge. Others suggested muscle cells.
— Examiner report, May/June 2025, 0654/33 Q3(b)(iii) (Cambridge)
Few candidates correctly referred to electrical signals or impulses.
— Examiner report, May/June 2022, 0654/33 Q1(a)(ii) (Cambridge)
Most of the candidates who were able to work out the average reaction time were able to give their answer to two significant figures.
— Examiner report, May/June 2022, 0654/33 Q1(b)(i) (Cambridge)
Past papers, syllabus and examiner reports © UCLES (Cambridge University Press & Assessment). Questions are matched to topics from the official syllabus. AssessPro is independent and not endorsed by Cambridge.