IB Bio lab report on photosynthesis
The effect of different coloured lights on the rate of Photosynthesis
Objective: To find out which colour of light provides the best consequences for the production of oxygen/ the rate of photosynthesis
Background:
In photosynthesis, there are two main parts, including light dependent and light-independent reactions. Plants use the energy from light for producing sugar, which is being converted into ATP by cellular respiration. They also are the only organisms that produce oxygen along with glucose and fructose chains within the light-independent phases of photosynthesis. This process takes place in the chloroplasts of plants, which include chlorophyll. Chlorophyll is essential for photosynthesis, since it absorbs the sun’s light. Green plants then use this light to combine CO and H₂O for making sugars and oxygen. After this process Oxygen is being released though pores called stomata. The overall reaction can be expressed as follows; 6H₂O + 6CO₂ C₆H₁₂O₆ + 6O₂1 There are four variables that affect the rate of photosynthesis; light intensity, temperature, CO₂ and water.2 However, is it possible to count in the colour of light, too, which I am going to investigate in this lab. Since the photosynthesis takes place in chloroplasts that has chlorophyll, the rate of photosynthesis can be affected by different colours of light, since the absorption of light changes within different colours.
Research Question:
What colour of light is most effective on the rate of photosynthesis?
Five different coloured transparencies (red, green, yellow, blue, purple) are being used for changing the light’s colour. Within 5 minutes for each one of them, they will be used in order to see oxygen bubbles rising from a used water plant. The produced oxygen (in the form of bubbles) indicates the rate of photosynthesis and is being measured by counting bubbles.
The highest amount of oxygen bubbles being produced per minute is equivalent to the highest rate of photosynthesis, and the colour
Objective: To find out which colour of light provides the best consequences for the production of oxygen/ the rate of photosynthesis
Background:
In photosynthesis, there are two main parts, including light dependent and light-independent reactions. Plants use the energy from light for producing sugar, which is being converted into ATP by cellular respiration. They also are the only organisms that produce oxygen along with glucose and fructose chains within the light-independent phases of photosynthesis. This process takes place in the chloroplasts of plants, which include chlorophyll. Chlorophyll is essential for photosynthesis, since it absorbs the sun’s light. Green plants then use this light to combine CO and H₂O for making sugars and oxygen. After this process Oxygen is being released though pores called stomata. The overall reaction can be expressed as follows; 6H₂O + 6CO₂ C₆H₁₂O₆ + 6O₂1 There are four variables that affect the rate of photosynthesis; light intensity, temperature, CO₂ and water.2 However, is it possible to count in the colour of light, too, which I am going to investigate in this lab. Since the photosynthesis takes place in chloroplasts that has chlorophyll, the rate of photosynthesis can be affected by different colours of light, since the absorption of light changes within different colours.
Research Question:
What colour of light is most effective on the rate of photosynthesis?
Five different coloured transparencies (red, green, yellow, blue, purple) are being used for changing the light’s colour. Within 5 minutes for each one of them, they will be used in order to see oxygen bubbles rising from a used water plant. The produced oxygen (in the form of bubbles) indicates the rate of photosynthesis and is being measured by counting bubbles.
The highest amount of oxygen bubbles being produced per minute is equivalent to the highest rate of photosynthesis, and the colour