The newest 7 of 7 written questions. Open one to see it on the real paper.
Place a tick (VY) in all the boxes which describe a reflex action. automatic rapid slow transports water uses hormones
See it on the paper →State the name of the response shown in Fig. 1.2.
See it on the paper →The response shown in Fig. 1.2 is an involuntary action. Tick ( ✓ ) the boxes to show two other involuntary actions. drinking heart beating running sneezing talking
See it on the paper →State the names of the stimulus and effector in this reflex action. stimulus effector
See it on the paper →Suggest the name of the receptor and the name of the effector for the reflex response shown in Fig. 7.1. receptor effector
See it on the paper →State two reasons why the pupil reflex is described as a reflex action.
See it on the paper →Circle two words that can be used to describe a reflex action. automatic conscious stimulus rapid slow voluntary
See it on the paper →Many candidates correctly identified the muscle as the effector but a few candidates suggested that the stimulus was a change in temperature or the hot object. Many candidates incorrectly suggested the hand.
— Examiner report, February/March 2024, 0654/32 Q4(a)(iii) (Cambridge)
It was clear that some candidates did not know the meaning of receptor and effector. A wide range of incorrect parts of the eye were suggested for both the receptor and the effector. Effectors are muscles or glands that cause a response. In the pupil reflex it is the circular and radial muscles of the iris that effect the change.
— Examiner report, February/March 2023, 0654/42 Q7(a)(i) (Cambridge)
Most candidates were able to give some suitable features of reflex actions.
— Examiner report, February/March 2023, 0654/42 Q7(a)(iii) (Cambridge)
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