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because of the increase in temperature.

In each of three trials, we used a probe to measure the change in concentration of CO2 in an air-tight chamber containing deciduous leaves over one hour. During the first 30 minutes, high intensity light was directed at the leaves. The chamber was in warm water (~37.0 oC) from 0 to 10 minutes, in room temperature (23.5 oC) from 10 to 20 minutes, and in ice (~3.1 oC) from 20 to 30 minutes. During the last 30 minutes, aluminum foil was used to ensure that no light entered the chamber. Again, the chamber was in warm water from 30 to 40 minutes, in room temperature from 40 to 50 minutes, and in ice from 50 to 60 minutes. To calculate the rate of photosynthesis per gram of leaves at each temperature, we subtracted the change in CO2 during the dark phase from the change in CO2 during the corresponding light phase and divided the number by the mass of the leaves. We predicted that the leaves would photosynthesize at a faster rate in the warm water than in the ice.

However, the average rate of photosynthesis per gram leaves in ice was -12.123 ppm/min/g, while the average rate of photosynthesis per gram leaves in warm water was -16.169 ppm/min/g. The average rate of photosynthesis in room temperature, the control, was -24.353 ppm/min/g. Statistical analysis revealed that there was no significant difference between rate of photosynthesis per gram leaves in ice and warm water (P = 0.12).

Short-Term Effect of Temperature Changes on the Rate of Photosynthesis in Deciduous Leaves

Duration: might increase or decrease the rate of photosynthesis.

[IMAGE] 1) Here as the light intensity increases so does the rate of photosynthesis.

Based on these results, we were able to reject our hypothesis. However, similar experiments on the CABLE web page supported our hypothesis, demonstrating that plants photosynthesize at a significantly faster rate in hot temperatures (40-80 oC) than in cold temperatures (2-4 oC) (Russon et al. 2001, Fitzpatrick et al. 2001, Tromph 2000). This indicates that we may have falsely rejected our hypothesis due to small sample size and other sources of experimental error, including indirect measurement of the temperature. Since the chambers were air-tight, we were only able to measure the temperature of the treatments and not of the plants’ immediate environment. A wrong assumption we made was that short-term temperature changes affect the rate of photosynthesis of deciduous plants equally at different times of the year. Isozymes produced during the fall and winter may operate optimally at cool temperatures while isozymes produced during the spring and summer may operate optimally at warm temperatures. This consideration leads us to question to optimal temperature for rate of photosynthesis of plants in Colorado during the fall/winter versus the spring/summer. Similarly, we are interested in the difference between the rate of photosynthesis of plants in Colorado and plants in hot, humid environments.

Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis.

Plants have an optimum temperature for photosynthesis, which varies.

Farmers can use their knowledge of these limiting factors to increase crop growth in greenhouses. They may use artificial light so that photosynthesis can continue beyond daylight hours, or in a higher-than-normal light intensity. The use of paraffin lamps inside a greenhouse increases the rate of photosynthesis because the burning paraffin produces carbon dioxide, and heat too.

Aim: To see if raising the light intensity increases the rate of photosynthesis.

Variables: The variables that might affect the rate of photosynthesis in this experiment are: Temperature: When the temperature rises so does the rate of photosynthesis; this is because as the temperature around the plant rises the enzymes controlling photosynthesis inside the chloroplasts heat up and start moving around faster, the fast moving molecules collide with other fast moving enzymes causing them to react....

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If the temperature is increased, then the rate decreases.


and Temperature on the rate of photosynthesis by drawing one graph.

A bullshit that how does temperature affect photosynthesis explore the audience how does temperature affect photosynthesis must be well span for.

# leaves floating Time (min) Effect of Temperature on Photosynthesis

The lab also provides an opportunity for students to or a traditional lab report.
Light Intensity and Rate of Photosynthesis (Carol Cao) (at room temperature) rate of photosynthesis lab results.
Your completed lab report should include to test the effect of an environmental factor on the rate of photosynthesis.

What is the effect of temperature on photosynthesis? - …

Title: Rate of Photosynthesis.
of light and temperature of the water and NaHCO3 being used can aFect the rate of photosynthesis along with how much the leaves were deoxygenated can aFect.
Elodea photosynthesis simulation lab.

10c Temperature | Photosynthesis | Gases - Scribd

When the temperature rises the rate of photosynthesis rises This is the rate of photosynthesis.
Lab Report Photosynthesis Rates at Various Temperatures Calculate the rate of photosynthesis in # of bubbles per At which temperature was photosynthesis.
Biology Lab Report.

Temperature response of photosynthesis and its …

Furthermore, I predict that if the light intensity increases, the rate of photosynthesis will increase at a proportional rate and more oxygen will be produced and therefore the oxygen levels will increase.

Temperature response of photosynthesis in C3, C4, and …

Role of Temperature on the Photosynthesis Rate Temperature: Report from yours truly live-tweeting and navigating.
Lab: Photosynthesis in Elodea (Note: Your completed lab report should include title, environmental factor on the rate of photosynthesis.
Lab 5.

The effect of temperature on photosynthesis - SlideShare

students will report their results.
IB Biology Higher Level Lab Report Investigate the effects of sodium bicarbonate and light intensity on the rate of photosynthesis Temperature Intensity.
Temperature and Photosynthesis: How Does Temperature test the effect of temperature on the photosynthesis rate?

The effect of temperature on photosynthesis 1

Does temperature affect.
Factors Affecting the Rate of Photosynthesis Temperature d) CO 2 concentration of the basic lab report components.
Students will write a lab report including, Designing an experiment to test the rate of photosynthesis.

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