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

How does Temperature affect the Rate of Respiration in Wax Worms?

Extracts from this document...


Biology AS Coursework How does Temperature affect the Rate of Respiration in Wax Worms? P I A E spg Total Mark = Name: Daniel Comey Candidate Number: ? Centre Number: ? Aim The aim of this investigation is to determine what affect temperature has on the rate of respiration of a simple organism. The simple invertebrate organisms I will be using in this investigation are wax worms. Theory To convey all the background research I will need in order to make a valid hypothesis I will split my theory section into the following sub-headings: * Background information on wax worms * Respiration in invertebrates * How temperature affects respiration * The Quotient 10 law Background information on wax worms Wax worms (Galleria Mellonella), in their natural environment, are very destructive pests of honeycombs. They are now bred and used for fish bait and to feed exotic pets, for example reptiles. The greater wax moth (an adult life stage of a wax worm) will lay their tiny white eggs near a beehive. There they will develop into wax worms (larvae stage) and tunnel their way though weak honey beehives. There they will feed on honey, beeswax and honeycomb leaving a mass of debris, silken threads and damaged honeycomb frames. ...read more.


I will carry out the experiment by placing three wax worms in a boiling tube that is attached to a respirometer and placing the boiling tube into the water bath at the temperature that I am testing. Then I can repeat this process over different temperatures to test all the temperatures that I am interested in testing the rate of respiration for. I will also repeat the whole process a second time to get an average for my results. For my results to be significant in any form I must make this a fair test. To make a test fair all the variables must be kept constant apart from the variable that is being investigated. To make this a fair test I will have a control boiling tube hooked up to a respirometer to make sure that the change in the respirometer is due to the wax worms and nothing else. Time is also a varying factor so I will time the boiling tubes, five minutes should be a sufficient amount of time to notice a change in oxygen levels. I have already decided to use a time limit of five minutes per temperature. The temperatures that I will test the rate of respiration for will be 10�, 20�, 30�, 40�. ...read more.


I am aware that if I had one 'off' experiment my results could be completely different from what they are supposed to be. This is why I carried out the experiment twice, to get an average so my results were more accurate and so that the results could not have been the result of an 'off' experiment. My two sets of data are very similar and it is very unlikely that I had two 'off' experiments. The majority of the equipment that I used was accurate. One exception was the water bath. I chose to use a beaker and thermometer water bath for convenience reasons; if I had used a thermostatically controlled water bath the temperature would have been more constant and my results may have been more accurate. There were some bubbles present in the manometer fluid when I carried out the experiment, this may have made my results slightly inaccurate. Also there are probably more sophisticated respirometers that I could have used (a digital one, for example), to get more accurate results, however I do not think this would make such a significant difference. To improve this investigation I could use the equipment above, maybe different time (longer times), although different temperatures would not be a good idea as the wax worms looked uncomfortable at 40�C. Daniel Comey 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 AS and A Level Energy, Respiration & the Environment 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 AS and A Level Energy, Respiration & the Environment essays

  1. Marked by a teacher

    effect of temperature on the rate of respiration in yeast

    5 star(s)

    After this it is been taken into kreb cycle and then into electron transport chain. (Reference 9) Kreb cycle: This stage of respiration is known as kreb cycle. The Krebs cycle occurs in the matrix (fluid portion) of the mitochondrion.

  2. Marked by a teacher

    'An investigation into the ability of two strains of the yeast Saccharomyces cerevisiae to ...

    4 star(s)

    Suspend the burette in a clamp stand, ensuring that the tap is closed. This should be done in order to prevent any 0.1 mol dm-3 sodium hydroxide solution (NaOH), from being able to escape from an open valve whilst the filling of the burette is occurring.

  1. An investigation into the effects of temperature on the rate of anaerobic respiration of ...

    Also, fewer errors will occur than while reading ruler through three panes of glass as light will bend distorting clear view of bubble in the fermentation tube and become dependant on human judgement and sight. To obtain more reliable results and if I were to conduct the experiment again I

  2. the effect of bile concentration on the activity of the enzyme lipase during the ...

    Put bile and lipase at the same time By putting the bile and lipase at the same time it means that when the experiment starts, as soon as the lipase is added the pH will between 8-9 which is what we were meant to start with.

  1. An investigation into the distribution of adult and juvenile limpets on a rocky shoreline.

    I am going to use the cross staff, ranging pole and meter ruler to measure my first shore height at the point where it is 1.1m above the chart datum which is a level so low that the tide will not frequently fall below it.

  2. How does the temperature of the water in rock pools affect the distribution of ...

    The dog whelks will go where the prey is best so the distribution will be affected. The other thing that temperature affects is oxygen levels; this was going to be my study but would have been too difficult to measure, due to lack of equipment. At high temperature levels (30�C)

  1. Investigating how prolonged exposure to its optimum temperature affects the respiration of yeast.

    Subsequently, the increased energy will also lead to more successful collisions between molecules. As a result, an increased temperature will result in a higher frequency of collisions, and a greater success rate between collisions. It is widely thought that, when all other conditions are kept constant, an increase in temperature of 10�c will double the rate of reaction.

  2. Why the Body Needs Energy? Every living cell within the ...

    Reference: http://en.wikipedia.org/wiki/Gas_exchange http://www.ebme.co.uk/arts/vent1/index.htm Website viewed on 22 / 5 / 08 Components of Inhale and Exhale Air * The air that comes into our body contains approximately 21% oxygen and 0.04% carbon dioxide. * The air that leaves the body contains 16% oxygen and 4% carbon dioxide therefore the air

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