14.1. Coordination and response
A subsection of Biology, 0610, through 14. Coordination and response
Listing 10 of 144 questions
For Examiner's Use shows a simple reflex arc. muscle with nerve endings receptor in skin B A Name the cells labelled A and B as shown on . A B State two features of a reflex action. State what is meant by an effector. For Examiner's Use shows the muscles and bones around the elbow joint. D C radius bone ulna bone Name the structures labelled C and D as shown on . C D A nerve impulse stimulates muscle D to contract. Describe what will happen to the muscles and bones of the arm.
0610_s13_qp_22
THEORY
2013
Paper 2, Variant 2
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Reflex actions play an important part in human behaviour. What is meant by the term reflex action? Suggest why reflex actions are important. A reflex arc is made up of a number of different parts. Complete the sentences that describe a reflex arc by writing the correct words in the spaces. Each word may be used once, more than once or not at all. brain effector motor neurone receptors relay neurone sensory neurone Changes in the surroundings are detected by which generate an impulse in a . Nerve impulses travel from this cell to a . The impulses then travel to a . Finally the nerve impulse is passed to an which results in the body responding to the changes. is a diagram of a reflex arc. It shows two different neurones. These are labelled neurone A and neurone B. neurone A neurone B junction not drawn to scale There are small gaps at the junctions between neurone A and neurone B. State the name of these gaps. State where in the body neurone B can be found.
0610_w16_qp_33
THEORY
2016
Paper 3, Variant 3
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Questions Discovered
144