Special equipment exists for measuring the rate of photosynthesis. For precise and accurate measurements, use a Photosynthesis Measurement System. They quantitatively measure the rate using an infrared gas analyser to assess the input of CO2 and output of H2O. Some Photosynthesis Measurement Systems (e.g. the LCpro+) can precisely control the environment of the leaf. The user can select the exact concentrations of CO2 and H2O, and can control PAR and temperature, so can investigate the effects of different conditions on the rate of photosynthesis.
Some Photosynthesis Systems are portable so you can carry them to field sites (but some are somewhat heavy for field work. LI-6400 model weighs 13.5kg)
Alternatively, you can assess photosynthetic rate by measuring the volume of gas produced by an aquatic plant. This is perfect for investigating the rate of photosynthesis if you have limited resources, don't need high levels of accuracy, and don't care which species of plant you study.
To do this experiment; Cut the stem of an Elodea plant diagonally. Put it in a small graduated cylinder full of water without introducing any bubbles. Invert the cylinder into a beaker full of water with the top covered so no air gets in. Place the beaker in light. Either count the number of bubbles produced, or leave the experiment for a long time and measure the volume of gas produced. Since bubbles have a variable, undefined volume, counting the number of air bubbles is not precise.
ANSWER 1
You can use a few things to measure the rate of photosynthesis. CO2 levels, Oxygen levels, are the most common. U can place a plant in a secure container and measure the drop in Co2 levels or the rise in O2 levels. the drop in CO2 levels shows photosynthesis because it is needed for photosynthesis to occur and the rise of oxygen levels because oxygen in a by-product of photosynthesis so the rise in the O2 concentration levels can tell you the rate of photosynthesis.
ANSWER 2
Hi photosynthesis-measurer,
The above answer is correct to state that a number of different parameters can be used to assess the rate of photosynthesis. In theory, the rate of photosynthesis can be quantified by measuring any of the inputs to the reaction (light and CO2) or any of the outputs (oxygen and carbon compounds). The input of water cannot estimate photosynthetic rate, since it is also used in transpiration. The parameter that you chose to measure depends on your resources and the accuracy required of your estimates.
There are instruments that measure the input of CO2 and output of H2O, called Photosynthesis Measurement Systems. They use an infrared gas analyser, and are precise and accurate.
Look up the scientific papers that are referenced on the Wikipedia page to see which Photosynthesis Systems have been used to study the rate of photosynthesis;
http://en.wikipedia.org/wiki/Photosynthesis_system
Photosynthetic rate can be estimated by measuring the rate that O2 is released because oxygen is one of the products of photosynthesis. Experiments where you count the air bubbles produced by an aquatic plant are perfect if you have limited resources and only need rough estimates. However, since bubbles have a variable, undefined volume, this method is not precise.
The equation for photosynthesis is CO2 plus H2O which equals glucose plus O2. The more that photosynthesis occurs the more oxygen that is being produced.
The DPIP changes from blue to clear which indicates photosynthesis is taking place. The rate at which the DPIP turns from blue to clear is the rate at which photosynthesis occurs
Oxygen is produced by "splitting" water in the PS II complex
oxygen is released during photosynthesis
You would measure O2 since the plants give off oxygen. O2 is Oxygen gas.
It increases the rate of photosynthesis or vice versa...
There are instruments that measure the input of CO2 and output of H2O, called Photosynthesis Measurement Systems. Look up the scientific papers that are referenced on the Wikipedia page to see which Photosynthesis Systems have been used to study the rate of photosynthesis; http://en.wikipedia.org/wiki/Photosynthesis_system They use an infrared gas analyser, and are precise and accurate. Some Photosythesis Measurement Systems (e.g. the LCpro+) can precisely control the environment of the leaf being measured, to allow you to conduct detailed experiments on the effects of different conditions on the rate of photosynthesis. Some Photosynthesis Measurement Systems are light weight (except some models are too heavy for field work. The LI-6400 weighs 13.5kg)
oxygen is used for cellular respiration and is used more when metabolic rate increases
ANSWER 1get a beaker full of water then put the plant into it with a test tube of water on it. then put some light an it and blow into the water with a straw. if you see bubbles building up in the tube then you have oxygen.ANSWER 2Hi photosynthesis measurer,Counting the air bubbles that are produced when a plant is in water is perfect for measuring the rate of photosynthesis if you have limited resources and only need rough estimates. However, since bubbles have a variable, undefined volume, counting the number of air bubbles is not precise. You can obtain slightly more accurate results by collecting the air released, and measuring the volume.If you wish to obtain precise and accurate measurements of the rate of photosynthesis, you could use a Photosynthesis Measurement System. They are instruments that quantitatively measure the rate using an infrared gas analyser to assess the input of CO2 and output of H2O. Some Photosythesis measurement systems (such as the LCpro+) offer the ability to precisely control the environment of the leaf being measured. These instruments maintain the leaf chamber at user-selected concentrations of CO2 and H2O, and can control PAR and temperature. This allows you to conduct detailed experiments on the effects of different conditions on the rate of photosynthesis.Photosynthesis measurement systems are designed to be portable so you can carry them to field sites (except some models are somewhat heavy for field work. LI-COR's 6400 model weighs 13.5kg!).Answer 3Below is a reference site that might be helpful.
Carbon dioxide is the gas that should be used to measure the rate of photosynthesis. The resultant gas which is oxygen can also be used to tell us the rate of photosynthesis.
its what you measure the rate of photosynthesis
You would measure O2 since the plants give off oxygen. O2 is Oxygen gas.
the consumation rate of oxigen (or better : the production rate).
Because not all of the water that is taken by the plant is used for transpiration. Some of the water taken might be used for photosynthesis or by the cells to maintain turgidity. The potometer measures the rate of uptake of water. To measure transpiration rate directly, rather than the rate of water uptake, utilize a scientific instrument which quantifies water transfer at the leaves.
It increases the rate of photosynthesis or vice versa...
It is used to measure either the rate at which oxygen is used up or the rate at which carbon dioxide is produced.
There are instruments that measure the input of CO2 and output of H2O, called Photosynthesis Measurement Systems. Look up the scientific papers that are referenced on the Wikipedia page to see which Photosynthesis Systems have been used to study the rate of photosynthesis; http://en.wikipedia.org/wiki/Photosynthesis_system They use an infrared gas analyser, and are precise and accurate. Some Photosythesis Measurement Systems (e.g. the LCpro+) can precisely control the environment of the leaf being measured, to allow you to conduct detailed experiments on the effects of different conditions on the rate of photosynthesis. Some Photosynthesis Measurement Systems are light weight (except some models are too heavy for field work. The LI-6400 weighs 13.5kg)
Light intensity and the rate of photosynthesis relate to the position of the sun in a few ways. The higher the sun the faster the rate of photosynthesis.
It increases the rate of photosynthesis.
The wavelength of a color is directly related to the rate of photosynthesis, with longer wavelengths leading to higher rates of photosynthesis.
Low light intensity lowers the rate of photosynthesis, Normal sunlight is good for a normal rate of photosynthesis, Very high intensity bleaches (destruction) the chlorophyll