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ANSWER 1
get 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 2
Hi 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 3
Below is a reference site that might be helpful.
The rate of photosynthesis is commonly measured by monitoring oxygen production or carbon dioxide uptake. This can be done using instruments such as a gas exchange analyzer or a spectrophotometer. Alternatively, the rate of photosynthesis can be determined indirectly by measuring the rate of sugar production or by tracking the absorption of light by chlorophyll.
One option is to use a Photosynthesis System. These instruments are generally believed to be accurate and reliable by the plant physiologist community. There are a number of scientific papers about investigation of photosynthetic rate which reference a photosynthesis system in their materials and methods. You can look up the scientific papers referenced on the Wikipedia page, and can see which Photosynthesis Systems they used;
The systems measure the rate using an infrared gas analyser to assess the input of CO2 and output of H2O. Some Systems (e.g. the LCpro+) can precisely control the environment of the leaf being measured. The user can select the exact concentrations of CO2 and H2O, and can control PAR and temperature.
Alternatively, you can assess 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.
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.
You can measure photosynthesis by taking an aquatic weed and measuring the number of oxygen bubbles given off in a certain time period. Oxygen is a waste product of photosynthesis so the varying rate of bubbles produced is directly related to the rate of photosynthesis.
Do you mean; "what can you use to measure photosynthesis?"
You can use equipment that will allow to assess the rate that oxygen is released. The plant material is placed in a sealed beaker of water, with tubing to collect any gas released. The gas is collected in a syringe to measure it's volume.
A clever piece of equipment that will allow you to measure photosynthesis is a Photosynthesis System.
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.
Some Photosynthesis Systems (such as the LCpro+) offer the ability to precisely control the environment of the leaf being measured. This allows you to conduct detailed experiments on the effects of different conditions on the rate of photosynthesis.
During photosynthesis, carbon dioxide and water are converted into oxygen and glucose in the presence of light. The rate of photosynthesis can hence be determined by the production of oxygen as this gas is a product of photosynthesis. For example, a person can count bubbles of oxygen from pondweed or use an oxygen probe to collect oxygen data per unit of time.
It is also possible to measure carbon dioxide uptake as this gas is a raw material of photosynthesis. This can be done by measuring aquatic pH changes per unit time.
Moreover, the rate of photosynthesis can be determined indirectly by measuring the increase in biomass. This method works as the products of photosynthesis are used to produce plant tissues. To do this, a sample dry mass of plant is weighed before and after a time period.
There are several ways: both by measuring the rate of generation of glucose and O2; as well as measuring the rates of uptake of CO2 and H2O.
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If you place a plant in a clear sealed box how could you use a measurement of the gases in the boxed air to measure the rate of photosynthesis?
You can measure the rate of photosynthesis by monitoring the levels of oxygen and carbon dioxide within the sealed box over time. As the plant undergoes photosynthesis, it will produce oxygen and consume carbon dioxide, leading to changes in the gas concentrations. By measuring these changes, you can determine the rate of photosynthesis occurring.
Which could be used to monitor the rate of photosynthesis in a plant?
Measuring the rate of oxygen production or the rate of carbon dioxide uptake by the plant can be used to monitor the rate of photosynthesis. One can also measure the production of sugars or biomass to assess the effectiveness of photosynthesis in plants.
How are the rate of photosynthesis and the growth rate of grass related -?
The rate of photosynthesis in grass directly affects its growth rate. Photosynthesis is the process by which plants produce energy to grow, so a higher rate of photosynthesis typically results in faster growth. Factors like light intensity, temperature, water availability, and nutrient levels can influence both photosynthesis rate and grass growth rate.
What is used to measure the rate of photosynthesis?
The rate of photosynthesis is typically measured by monitoring the production of oxygen, which is a byproduct of photosynthesis. This can be done using a device called a gas exchange analyzer or by capturing and measuring the amount of oxygen released during photosynthesis.
Which of the following scientists would more likely be concerned with the rate of photosynthesis in leaves?
A plant biologist or a botanist would be more likely to be concerned with the rate of photosynthesis in leaves, as they study plant processes and functions like photosynthesis.
How could you use a measurement of the gases in the boxed air to measure the rate of photosynthesis what gas would you measure?
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.
What is a photosynthometer?
A photosynthometer is a device used to measure or assess the rate of photosynthesis in plants, typically by measuring the uptake of carbon dioxide or the release of oxygen. It provides a way to evaluate the efficiency of photosynthesis under different conditions or in response to various factors.
If you place a plant in a clear sealed box how could you use a measurement of the gases in the boxed air to measure the rate of photosynthesis?
You can measure the rate of photosynthesis by monitoring the levels of oxygen and carbon dioxide within the sealed box over time. As the plant undergoes photosynthesis, it will produce oxygen and consume carbon dioxide, leading to changes in the gas concentrations. By measuring these changes, you can determine the rate of photosynthesis occurring.
Which could be used to monitor the rate of photosynthesis in a plant?
Measuring the rate of oxygen production or the rate of carbon dioxide uptake by the plant can be used to monitor the rate of photosynthesis. One can also measure the production of sugars or biomass to assess the effectiveness of photosynthesis in plants.
What effect does the amount of light have on photosynthesis?
Light intensity directly affects the rate of photosynthesis. As light intensity increases, so does the rate of photosynthesis, up to a certain point where the rate levels off or decreases. Plants require a certain amount of light to carry out photosynthesis efficiently.
How are the rate of photosynthesis and the growth rate of grass related -?
The rate of photosynthesis in grass directly affects its growth rate. Photosynthesis is the process by which plants produce energy to grow, so a higher rate of photosynthesis typically results in faster growth. Factors like light intensity, temperature, water availability, and nutrient levels can influence both photosynthesis rate and grass growth rate.
Does the rate of photosynthesis depend on the duration of light?
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
How do different pigments colors affect 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.
What is used to measure the rate of photosynthesis?
The rate of photosynthesis is typically measured by monitoring the production of oxygen, which is a byproduct of photosynthesis. This can be done using a device called a gas exchange analyzer or by capturing and measuring the amount of oxygen released during photosynthesis.
What is the relationship between light intensity and photosynthetic rate?
The relationship between light intensity and photosynthetic rate is that if the intensity of the light is high then the rate of photosynthesis will increase. However the rate of photosynthesis will only increase to an extent after intensity of light reaches a certain point photosynthesis rate will stay still.
Which of the following scientists would more likely be concerned with the rate of photosynthesis in leaves?
A plant biologist or a botanist would be more likely to be concerned with the rate of photosynthesis in leaves, as they study plant processes and functions like photosynthesis.
How can you observe the rate of photosynthesis?
oxygen
