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

Photosynthesis Investigation I would like to have a look at what may speed up the rate of photosynthesis in plants. The items that I think will speed up photosynthesis are as follows:

Extracts from this document...


Photosynthesis Investigation Hypothesis A plant needs to use photosynthesis to survive just like we need to use reparation to survive. Us mammals inhaling oxygen and exhaling mainly carbon dioxide but for plants it's the opposite way around, they inhale carbon dioxide in there leafs and exhales oxygen. The idea of producing oxygen from the use of sunlight and carbon dioxide may sound strange but it is true. To produce oxygen a plant goes through an ever-lasting cycle, which is shown below: Carbon Dioxide + Water Oxygen + Sugar / Glucose (Gas) (Liquid) (Gas) (Solid) This cycle is ever lasting until the plant dies, this process may go fast or may go slow it all depends on the size and the age of the plant and also the amount of sunlight in the area. A plant needs the following for good health and to receive the requirements it needs to accomplish PHOTOSYNTHESIS. These are: * Carbon Dioxide * Light * Minerals * Water * Chlorophyll * Heat (some plants) ...read more.


I think light is the most important because with out light plants cannot grow, never mined accomplishing the cycle of photosynthesis. Given a plant an overdose doesn't sound good but I think it will do some good. Given the plant a larger amount of sunlight than it usually receives may shock it but will I think force the plant to inhale more carbon dioxide and exhale a lot more oxygen. This will also I think speed the cycle of photosynthesis quickly and will finally even out at a high output point. Fair test To keep this test fair I will be doing the following: * Keep the heat of the water the same * Use the same pond weed each time * Use the same amount of water each time * Use the same sized beaker * Use the same light * Do this in an area, which will not increase in light, heat or carbon dioxide amount. Plan The equipment I will be using for this experiment is as follows: * 500ml beaker * A lot of warm carbonated water * A lamp * A ...read more.


After a steady drop around 80 or 90cm's away the line levelled off. It started to level off because the plant was no longer receiving surfactant light from the 60-watt bulb, but from the surrounding light sours. Most of the graph shows this line of best fit with some anomalous results. Directly proportion Distance from lamp In all these experiments the plant was never performing to its full potential. This was because we only used a 60-watt bulb; there is even 200-watt bulb. With a 200-watt bulb I would expect the bubble output to be greater. Evaluation At the end I was pleased to find out nearly everything in my experiments worked out apart for the one or two anomalous results which never fitted in to my line of best fit but I over come that by redoing the experiment. I think I could have done these experiments more reliable if I had more time to do the experiments in and I had better measuring tools. If I redone this experiment I will defiantly do more tests and used more reliable tools. ...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 Green Plants 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 Green Plants as Organisms essays

  1. Marked by a teacher

    Year 11 Module B4 Revision notes. Plants, photosythesis, biomass and the carbon cycle.

    4 star(s)

    This helps slow down the diffusion of water out of the leaf. 3. Bigger stomata and lots of stomata mean more water loss. In hot climates plants have fewer, smaller stomata on the underside of the leaf and no stomata on the upper epidermis.

  2. Peer reviewed

    An Investigation into the Effects that Different Light Intensities have on the Speed of ...

    5 star(s)

    Perhaps, if I had had more time, I could have found a safe and practical way of carrying out my original method with the projector. This would have enabled me to see whether my conclusion: that the last two light intensities were higher than they should have been because of the higher temperature, was correct or not.

  1. The investigation is aiming to look at transpiration.

    - If necessary smear Vaseline on joints between the stalk and the potometer to avoid leakage. MESOPHYES - All the apparatus needed for the experiment was collected - Fix the potometer inside water to prevent air bubbles from entering - A good mesophyte was selected - The shoot was cut

  2. An Investigation into Water Loss from Plants.

    * Care: When carrying spatula and scalpel care should be taken, equally when carrying fragile test tubes or measuring cylinder. * Clean up spillages: Water or oil could be spilt, ensure this is cleared up quickly and precisely to stop people slipping on it.

  1. Free essay

    Rate of photosynthesis

    The chlorophyll uses light energy to perform photosynthesis. It can only do it as fast as the light energy is arriving. 1) As the light level is raised, the rate of photosynthesis increases steadily but only up to a certain level.

  2. How temperature affects the rate of photosynthesis.

    2.14 8.54 5.19 25 14.07 10.35 20.20 11.16 27.48 8.90 18.80 29.91 2.42 25.47 18.23 23.46 20.65 17.78 35 20.44 32.97 44.70 33.28 47.59 33.88 41.93 43.35 6.53 27.21 35.39 44.64 33.64 34.27 45 38.30 31.16 48.30 34.28 58.71 36.49 30.36 37.33 20.80 34.72 52.54 49.73 57.10 40.76 55 25.07

  1. An Investigation into Species Diversity with distance along a Pingo.

    The aim of the preliminary was to establish the sample size, that is, the size of the quadrat to be used to measure the species diversity along the pingo. Secondly the preliminary established the sample number, that is, the number of times the quadrat had to be thrown in each

  2. Temperature regulation in mammals & birds.

    of best fit, as follows: % Discrepancy = [(value plotted - value on line) / value on line] x 100 The percentage discrepancy of each point was found, from the line of best fit: Point (SA / VOLUME ratio) % Discrepancy from line of best fit 1)

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