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Date May 2016 Marks available 1 Reference code 16M.1.SL.tz0.7
Level Standard Level Paper Paper 1 Time zone time zone 0
Command term What Question number 7 Adapted from N/A

Question

What does the elevated breathing rate after exercise allow the body to do?

A. To stimulate the peripheral chemoreceptors

B. To increase the pH of the blood

C. To trigger the Hering-Breuer reflex

D. To stimulate muscle proprioreceptors

Markscheme

B

Examiners report

Based on AS 2.1.5 in the SEHS syllabus and found within AS 3.3.8 a mid-difficulty question, and D was the main distractor. It is noted that the term ‘Hering-Breuer reflex’ (C), although a familiar term used in Physical Education and/or Sports Science, is not in the SEHS guide and possibly was then easily discarded.

Syllabus sections

Topic 2: Exercise physiology » 2.1. Structure and function of the ventilatory system » 2.1.5. Describe nervous and chemical control of ventilation during exercise.
Topic 2: Exercise physiology » 2.1. Structure and function of the ventilatory system
Topic 2: Exercise physiology

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