How CO2 affects photosynthesis experiment?
When the concentration of CO2 is low the rate of photosynthesis is also low. Increasing the concentration of CO2 increases the rate of photosynthesis. Experiment. Place a pond weed Elodea upside in a test tube containing water at 25°C.
What is the independent variable in the photosynthesis experiment?
Independent variable: the light intensity (how close the light is). Dependant variable: the number of oxygen bubbles given off (the rate of photosynthesis).
What is your hypothesis for this experiment photosynthesis?
What is you hypothesis for this experiment? The rate of photosynthesis is greater in white light than in darkness. Water is a reactant for photosynthesis and Elodea lives in water. Carbon dioxide is a reactant for photosynthesis.
Which factors affect photosynthesis?
Three factors can limit the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature.
How did your variable affect the rate of photosynthesis?
1) the variables of light intensity, temperature, carbon dioxide, light quality all influence the rate of photosynthesis. By increasing the use of carbon dioxide by plants, it may help slow global climate change.
What factors affect photosynthesis?
Do plants need carbon dioxide for photosynthesis experiment?
To investigate if a plant needs carbon dioxide for photosynthesis, we need to create conditions for the plants where carbon dioxide is present in one test and absent in another. Scientists can use sodium hydroxide to absorb carbon dioxide from the air so that it is unavailable for the plants to use in photosynthesis.
Why is carbon dioxide a limiting factor in photosynthesis?
As carbon dioxide concentrations increase, so too does the rate of photosynthesis until a certain point where the graph levels off. At lower carbon dioxide concentrations carbon dioxide is the limiting factor because an increase in carbon dioxide causes an increase in photosynthesis.
What are the 4 limiting factors of photosynthesis?
The major limiting factors for photosynthesis are light intensity, temperature, and carbon dioxide levels.
- Light Intensity. Since photosynthesis cannot begin without light, it is the first limiting factor.
- Temperature.
- Carbon Dioxide Concentration.
What happens if there is no carbon dioxide for photosynthesis?
Carbon dioxide—CO2—is an essential part of the cycle of life. Without a source of CO2, plants will die off, and without plant life the earth’s biological food chain would be terminally broken. The carbon found in biomass is taken out of the atmosphere through the process of photosynthesis which causes the plant grow.
Can photosynthesis happen without carbon dioxide?
The chemical process known as photosynthesis is how plants generate their own food (in the form of a sugar carbohydrate). So, without carbon dioxide, a plant would basically starve even if you had a sunny spot, lots of water and even extra fertilizer.