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

Show how be respiration changes as we do exercise.

Extracts from this document...

Introduction

Kieron Fenn Coursework: respiration Biology For our second piece of biology coursework, we had to how be respiration changes as we do exercise. Respiration is a reaction that takes place in every cell in life and it is how every cell is able to get its energy. ATP is the energy that is used and produced by all cells and cells use it for lots of different tasks. The energy can be used to actively transport, through absorption against a concentration gradient, material across membranes. There are two types of useful respiration that we plan to investigate, aerobic and also anaerobic. Most respiration that takes place is aerobic because the energy is more constantly produced. Aerobic respiration is the release of energy from the breakdown of glucose, by combining it with oxygen inside living cells (the energy is actually contained inside glucose molecules) Aerobic respiration is a ver y efficient method of producing energy; one molecule of glucose can provide twenty times as much energy as anaerobic respiration. It occurs during normal day to day activity and accounts for our energy production up to 60% of maximum effort. Also the draw back is that it doesn't produce energy anything like as quickly as anaerobic respiration. ...read more.

Middle

The numbers of steps I do per minute are: 1 step per 5 seconds 1 step per 4 seconds 1 step per 3 seconds 1 step per 2 seconds 1 step per second Method. Before I do the step-ups I have to take three resting pulse for one minute each time. This is to determine what my normal pulse rate will be. To take my pulse rate I will place 2 fingers on the underside of my wrist and the count the number of times that I can feel my vein pulsate. I will then take these results down. Then I will start my step-ups. To do my step-ups, I will use a 15cm step and then 1 step-up counts when I have: 1. Lifted 1 foot onto the step. 2. Then lifted the second foot onto the step. 3. Then I will have to take the first foot of the step and onto the floor. 4. Then to complete the step-up, take the second foot of the step onto the floor. After I have done the step-ups for 1 minute I will then take my pulse using the technique described for 30 seconds until I have got back down to the 'normal' pulse. I will have to repeat this for each exercise then do it all again for accurate results. ...read more.

Conclusion

The curves show that they were both pretty similar in the way I recovered. You can see a pattern in both the graphs, in the way that there is a dip in the pulse rate in the actual line. Another pattern that you could see in both the graphs was the fact that they were both nearly directly proportional and I believe that this shows that my results were not 100% accurate but they were sufficient enough to get sound graphs. Evaluation I found that these results were not as good as I had planned, simply because of the nature of the experiment. I was trying to find how the rate of respiration increased by using heart rate and pulse rate as my dependent variable. This is not accurate because you cannot measure the glucose in the blood and you also cannot measure the oxygen in the blood. If I had to do these experiment again; I would have to use a digital heart rate monitor because the manual method is not very accurate as it could be. Also I couldn't find my pulse sometimes and this was a problem. A digital pulse monitor would have been able to give me a pulse rate straight away and this would have solved the problem of grouping all my results together thus making them inaccurate. ...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. An experiment to investigate the rate of anaerobic respiration of yeast in various respiratory ...

    2 = second sample (sucrose) t = 5.16 - 4.19 (0.25)2 + (0.19)2 10 10 t = 0.97 V0.00986 t = 9.77 (2dp) Degrees of freedom = 10 + 10 - 2 = 18 Looking up the calculated t value in the t-tables using a degrees of freedom value of 18, the corresponding probability is less than 0.05.

  2. Human biology short notes

    * Blood flowing through the brain is concentrated * The hypothalamus detects the high osmotic pressure in the blood * As a result stimulates the pituitary gland to release ADH * ADH travels through the blood to the kidney tubule * ADH cause the walls of the CD to become

  1. Stem Cell Research

    viewpoint on this issue.55 Stem cell research would provide hope for this individual, that her daughter could be cured. Therefore, obviously this individual is going to be biased on this issue, as she wishes the best for her daughter. The political debate that surrounds stem cell research has been very controversial.

  2. HSC Module-Blueprint of Life

    The plant that grows is a clone of the original plant > Tissue culture technology has allowed mass cloning of plants. Firstly, a section of a plant, eg, a root tip, is pulverised using a blender to release the individual plant cells.

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