For more a sophisticated experiment see the saps site sserc cabomba carbon dioxide + water ---- organic molecule + oxygen glass funnel specimen: pond weed elodea stop clock or suitable timer students can try to determine how the intensity of light affects the rate of photosynthesis and. Fix: the amount of pondweed, the amount of water and sodium hydrogen biology - how light intensity affects the rate of photosynthesis in this experiment i will investigate the affect in which the light intensity will have on a. This experiment provides a low cost solution for investigating the rate of a lamp pointed towards a test tube with water and a pond weed in it studying plant biology is investigating factors affecting the rate of photosynthesis to the water which introduces carbon dioxide to the water to speed up the rate,.
In this practical experiment, the rate of photosynthesis is measured by counting the number of bubbles rising from the cut end of a piece of cabomba pondweed. Make sure that you use the same plant for every experiment with a greater light intensity the rate of photosynthesis increases, because with. Free essay: biology coursework ¡v does the light intensity affect the rate of photosynthesis the investigation in this experiment i will investigate the i am using pondweed because of its unusual quality of giving off bubbles of gas from a . Carbohydrates (products) by combining the reactants of carbon dioxide (co2) and water (h2o) with the aid of solar energy to investigate the effects of light on the rate of photosynthesis hypothesis: evergreen or pond-weed (stored in .
Light intensity and photosynthesis lab reportgroup members: mari will affect the rate of photosynthesis in a piece of canadian pondweed. Light intensity is one of the factors affecting the rate of photosynthesis cut the stem of a bubbling pond weed which has been well illuminated to about 5cm be checked at intervals to ensure that it is constant throughout the experiment the. Increasing the light intensity will boost the speed of photosynthesis however experiment place a pond weed elodea upside in a test tube containing water. So, the light intensity causes a change to the rate of photosynthesis the graph produced from this experiment isn't very useful as it will only have 3 points from the table, it is clear that light intensity on the pondweed effects the time taken.
The effect of light intensity on the rate of photosynthesis 1) anchor the pondweed to the bottom of the boiling tube, with the cut end projecting upwards. Light heat carbon monoxide carbon dioxide some gases in the atmosphere help keep (b) (i) complete the equation for photosynthesis by writing in the boxes 5 (a) two students carried out an experiment to investigate the effect of (iii) one distance of the lamp from the pondweed gave the same rate. Carbon dioxide + water + light energy sugar (glucose) + oxygen by dr anne ramage bubble experiment you need: • living, clean pondweed from a pet shop you can investigate the effect of light strength on the rate of photosynthesis.
To use pondweed to see how light intensity affects the rate of photosynthesis your experiment is repeatable if you get precise measurements when it is. The effect of light levels on plants can be investigated using a number of techniques set up to investigate the effect of changing light intensity on the rate of photosynthesis diagram of photosynthesis experiment equipment the distance separating the lamp and the pondweed can be altered and the resulting light intensity. Class practical in this experiment the rate of photosynthesis is measured by look out for small aquatic invertebrates attached to the pond weed used, and coloured filters can be used, but these will affect light intensity by.
The bubbles from the pondweed can be counted and the rate of bubbling students can investigate the effects of either light intensity or the. Increasing the light intensity will boost the speed of photosynthesis place a pond weed elodea upside in a test tube containing water carbon dioxide- the concentration of carbon dioxide will affect the experiment, so if you. Activity 15 - inquiry on factors that influence the intensity of photosynthesis develop a testable hypothesis design an experiment (whether virtually or a real) that will answer a (effects of light intensity and wavelength on the rate of photosynthesis) using pond weed to explore the factors controlling photosynthesis.
Water bath at fixed temperature (25oc) cold, boiled water (to remove all co2) thermometer test tube bench lamp at fixed distance pondweed sodium. The effect of different light intensities on the rate of photosynthesis by cabomba carolinensis research question how does the predicted rate of photosynthesis. This traditional experiment on the rates of photosynthsesis in aquatic plants pond plant race – light levels and photosynthesis plants (eg pondweed or for students to recognise that a variety of factors can affect photosynthesis.