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But how can we measure the rates at which photosynthesis takes place?

We have also learnt that photosynthesis is a vital process that occurs in order to create glucose and oxygen, by transforming carbon dioxide and water in the presence of light energy.

In this experiment we were told that we would be measuring the rate of photosynthesis.

In addition, a trial with no light would show the effect of light versus no light in the plant’s production of photosynthesis.
Other variables that we could tweak are concentration of bicarbonate and type of plant.
Comparing experimental results
By: Emily, David, Michael

Measuring the rate of photosynthesis - Science and …

Photosynthesis need light to work, so light therefore should speed up the rate of photosynthesis.

They found that elevated CO2 increased rates of net photosynthesis in about 85% of the reported studies, while reducing stomatal conductances and rates of transpiration in approximately 75% of the cases analyzed....

A) sunlight concentration B) temperature C) chlorophyll concentration D) carbon dioxide availability Effects of the variables and there concentrations: The amount of sunlight will decide the rate of photosynthesis as there will be a an increased rate of photosynthesis due to the increased availability of photons of light....

Experiment to Show the Rate of Photosynthesis :: Papers

What are the different methods of measuring the rate of photosynthesis?

The occurrence of photosynthesis is very important to us as humans, because it provides us with the oxygen we need to breathe and plants are at the bottom of every food-chain and so without them, I would collapse....

However, in order to make an accurate conclusion and experiment, the team decided to take the ET50 of the trials, which is the time at which 50% of the leaves have floated up.

There are a few key methods used to calculate the rate of photosynthesis. These include:
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Lab: Exploring the Rate of Photosynthesis - The Biology …

Background information: Photosynthesis Photosynthesis is the process of autotrophs turning carbon dioxide and water into carbohydrates and oxygen, using light energy from sunlight.

Exploring the Rate of Photosynthesis ..

Oxygen can be measured by counting bubbles that are being released from pondweed. The way to do this is to place the pondweed in an upside down test tube in a water bath connected to a capillary tube. Put the plant in a solution of NaHCO3 solution, and simply move a light closer or farther away from the plant. The more bubbles produced will indicate a faster rate of photosynthesis than when fewer bubbles are produced. The most common type of pondweed used is a plant known as Elodea. It is a common aquarium plant that can easily be purchased at local pet stores that specialize in aquarium maintenance.

the rate of photosynthesis in ..

You will use a virtual lab to measure the effects of light intensity on photosynthesis. Click for a link to that virtual lab. Your goal is to conduct the experiment, collect and organize data, and then make a conclusion from the data collected.

Measuring the rate of photosynthesis by oxygen bubbles …

This process is also affected by the temperature surrounding the plant (the species of plant we experimented with, pond weed, photosynthesised best at around 20 degrees centigrade.) Light, temperature & CO2 are known as limiting factors, and each is as important as the next in photosynthes...

Rate of Photosynthesis in Pond-Weed :: Papers

I will measure the rate of photosynthesis by counting the number of bubbles that are released by the stem of the pond-weed when the lamp is shone on it from different distances.

Category: Papers; Title: Rate of Photosynthesis in Pond-Weed

I think this because the plant may use up all of the carbon dioxide (Sodium hydro carbonate) and the plant can have as much light as it needs but if it does not have any carbon dioxide it will not be able to photosynthesise....

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