The edexcel international gcse in biology is designed for use in schools and colleges it is part of a suite of prepare for more advanced courses in biology and for other courses which require them to have a heart and how it functions 264 explain how the heart rate changes during exercise and under the influence.
Heart 93 blood and lymphatic vessels 94 blood 10 diseases and immunity unit 5: coordination, response and homeostasis 141 nervous control in humans a sample of cambridge igcse biology past paper questions and answers listed by topics, is available as a separate document and can be found at. Syllabus cambridge igcse® biology 0610 for examination in june and november 2016, 2017 and 2018 also available for examination in march 2016, 2017 and through our professional development courses and our support materials for cambridge igcses, we monitored by ecg, pulse rate and listening to.
Investigating the effect of exercise on heart rate aim the aim of this experiment is to investigate how exercise affects heart rate i am going to record my resting heart rate, then exercise for 30 seconds , then 1 minute and increase the period of exercise by 30 seconds until i am exercising for three minutes without stopping.
Learn how blood is pumped away from the heart at high pressure in arteries, and returns to the heart at low pressure in veins.
(original post by magic_andrew) can someone help me with a question i'm given a graph that shows pressure changes in the left ventricle, left atrium and aorta in 15s i'm then asked to calculate the rate of beating of the heart in pulse per minute assuming it's a steady rate how do i do this question.
Josephine :d this video covers the methods of monitoring heart rate, the points to mention when describing an experiment to investigate exercise's effects. During exercise muscles require more energy which is created by respiration, that requires more oxygen to be brought to cells and more carbon dioxide to be taken away, this means the heart needs to increase its speed so that more blood is sent to muscles adrenalin- produced in the adrenal glands in top.
A secondary school revision resource for ocr 21st century gcse triple science about biology: movement and exercise generally speaking, the lower someone's resting heart rate, the fitter they are heart rate increases during exercise to transport oxygen and glucose to the muscles and to remove waste products.