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

I am going to investigate the light to find the effects of light intensity in the rate of the photosynthesis.

Extracts from this document...


Aim I am going to investigate the light to find the effects of light intensity in the rate of the photosynthesis. Introduction Light is one of the most important substance o photosynthesis. Photosynthesis increases depend on the intensity of light. We can recognise whether bubbles occur photosynthesis. Hence, I predict that as the light intensity is increases, the number of bubbles is going to increase. Apparatus 1) One 1 litre of beaker 2) 800 ml of water 3) ...read more.


Put a lamp 1m from the beaker. 5) Put a metre rule for measure the distance between lamp and beaker. 6) Cover the beaker by a box except a side which the light goes in. 7) Approach the lamp 5cm to the beaker every minute. 8) Measure the number of bubbles for every minute. Result Distance from the pondweed Number of bubbles in the First experiment Number of bubbles in the Second experiment Average 100 12 3 7.5 95 12 4 8 90 13 6 9.5 85 14 8 11 80 14 8 11 75 17 9 13 ...read more.


In other words, when the light intensity is increases, the photosynthesis is increases. Evaluation I did my experiment very keenly to make accurate. First, I did my experiment because it can have different result with same environment. Hence, I calculated the average of two results and drew the graph of result. Also, I used counter, which was for count the number of bubbles to measure accurately. Therefore, I could get good result from my method. Through this experiment, I could improve my biological observational faculty and importance of photosynthesis in Biology. ...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

    Investigation to find out how light intensity effects the rate of photosynthesis

    4 star(s)

    to build up the simple sugar, glucose , from carbon dioxide and water. The light energy is trapped as chemical energy in the glucose molecule. Plants can use any source of light rays, but the source that does not run out is sunlight.

  2. The effects of organic effluent from the seweage on the biodiversty in a freshwater ...

    These conditions may cause the water and its constituents(enzymes) to become disrupted and hence change there tertiary structure and hence lead to harmful effects on the stream life. This will also affect the biodiversty in the fresh water stream. 14.

  1. How temperature affects the rate of photosynthesis.

    * As mentioned before any fault in the apparatus especially the electrical equipment provided could have caused an inaccurate measurement of results. For instance the lamp could have been faulty and could have been providing varying light intensities at different temperatures, thereby affecting the light stage considerably.

  2. The effects of light intensity on the rate of photosynthesis.

    This can be caused by disease, mineral deficiency, and the age of the plant. Iron, magnesium, nitrogen and sunlight are essential for chlorophyll production, so a lack of any one of these can lead to yellowing of the leaves6. Water is necessary for most cell processes, which makes it difficult

  1. In this coursework I am going to find out if trees modify the environment.

    Trees also hold the soil together to prevent soil erosion. I think there will be less living ground cover on the path because when humans walk on the path they trample on and kill any living ground cover. There is also more soil erosion on the path because the top soil comes off when humans are walking on it.

  2. Photosynthetic rate and light intensity.

    Metre Rule * Light meter/comparator * Stopwatch * 1% NaHCO3 solution * Elodea Canadensis * Light Intensity Meter Diagram Range of Measurements After carrying out a preliminary experiment, I have decided upon the range of measurements I want to use.

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