• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Discover the effect of differing body states on the pulse rate of a 13/14 year old male. The body states are lying down, seated, standing up, jogging on the spot.

Extracts from this document...

Introduction

Background: The heart is the body's most important organ. Without it nothing would work. The heart has the tiresome job of pumping blood around the body non-stop. Without it, the human race wouldn't exist. Some areas need more blood then others, so the body's veins and arteries siphon off the blood accordingly. The heart is a muscular organ which pumps blood around the blood vessels (the heart and blood vessels together are called the cardiovascular system). It is surrounded by the pericardial sac. This consists of an outer membrane (the pericardium) and the cavity (pericardial cavity) between it and the heart. This cavity is filled with a cushioning fluid (pericardial fluid). ...read more.

Middle

In this investigation, the dependent variable is the BPM. The independent variable is the state in which the person is taking their pulse, i.e. standing, jogging on the spot etc. The dependent variable is the BPM (beats per minute). The controlled variable is the amount of time left between testing the BPM of two different body states. Equipment: Graph paper 13/14 year old male Stop clock Chair Method: 1. Select activity (lying down, seated, standing up, jogging on the spot). 2. Find pulse in wrist. 3. Begin counting the pulse at the same time as starting the stopwatch and starting the activity. 4. Time activity for one minute before stopping the stopwatch. ...read more.

Conclusion

Results: Activity BPM pulse 1 (BPM) BPM pulse 2 (BPM) Average pulse (BPM) Standing 70 74 72 Sitting 65 63 64 Jogging 96 100 98 Lying 44 39 41.5 Graph: See next page Conclusion: In conclusion, this investigation shows that a persons BPM increases the more strenuous the activity is likely to be. This proves my prediction right. Evaluation: I feel that the investigation ran very smoothly, however, if time had allowed, I would have liked to have run a few more tests to widen our information, in order for us to form a more accurate conclusion. For example, increasing the number of activities to test, and increasing the amount of times we tested the BPM. Christopher Nelson 9R Miss Warnock Biology Coursework ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Humans as Organisms section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Humans as Organisms essays

  1. Marked by a teacher

    Biology Revision notes - Human Biology

    5 star(s)

    Environmental characteristic Factors that are affected by lifestyle. Fertilisation Fertilisation is the fusion of gametes to produce a new organism. Gamete A cell that fuses with another cell during fertilization. Gametes are reproductive cells. These cells unite to form a new cell called a zygote.

  2. My aim is to investigate the effect of different amounts of a full body ...

    Pulse Rate After Exercise (beats per minute) Pulse Rate Difference (beats per minute) 0 78 78 0 1 78 82 4 2 78 84 6 3 78 88 10 4 78 92 14 5 78 96 18 6 78 98 20 7 80 102 22 8 80 102 22 Experiment 2 Amount of Time Exercise is done for.

  1. Should the cloning of humans be allowed?

    especially since there was no way they would be able to have a say in their conception? Other people might think that the benefits of cloning outweigh the risks and they suggest that human clones would not have a shorter life span because some cloned mice and cattle were found with longer telomere lengths than in naturally conceived ones.

  2. Ideal Position to Recover Resting Heart Rate- Lab. Does the physical positioning of ...

    84 76 72 68 71 Sitting 52 108 88 76 68 64 F Laying 64 120 100 88 84 84 2 Standing 64 116 88 80 80 76 73 Sitting 52 124 96 80 76 64 F Laying 64 116 100 92 84 80 3 Standing 60 132 100 88

  1. human physiology

    cavity - This is situated behind the nose, and its main function is to receive and give out oxygen during breathing * Mouth - This is situated on the lower part of the face, its main function is accepting food and drink * Oesophagus - Food is passed through this part of the digestive system.

  2. human body system

    Blood travels along the pulmonary artery to the lungs where it receives oxygen and loses carbon dioxide. Then oxygenated blood travels back to the heart along the pulmonary vein. Blood enters the lungs at the left atrium. The left atrium contracts and blood passes through the mitral valve to the left ventricle.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work