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Effects of light intensity on rate of photosynthesis
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Effects of light intensity on rate of photosynthesis
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Light Intensity's Effect on Photosynthesis
Aim : To find out how light intensity will affect the rate of
photosynthesis in a piece of Canadian Pondweed.
Prediction : I predict that as I increase the distance between the
light source and the Canadian Pondweed (reducing the light intensity),
the volume of oxygen produced within the time limit (the measure of
the rate of photosynthesis) will decrease. This will happen because as
the light source is moved further away, less light rays will reach the
surface of the Pondweed, shown by this diagram;
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source
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Light rays Pondweed Light rays Light source
Pondweed
This will mean that less light (particles or waves) will go through
the clear Cuticle and upper Epidermis and reach the palisade layer.
This means that less light will reach each cell on average, and as
light is needed for photosynthesis to make the water and carbon
dioxide react together (making it a limiting factor) and so less light
means less water and carbon dioxide is reacted together in the time,
therefore there will be a decreased rate of photosynthesis, and less
oxygen produced will be produced as a by-product of the photosynthesis
reaction.
[IMAGE][IMAGE][IMAGE][IMAGE][IMAGE][IMAGE] I know that photosynthesis
will take place in the plant as there is all the factors needed for
photosynthesis available and present (water, carbon dioxide,
chlorophyll, and light) to the plant and therefore according to the
photos...
... middle of paper ...
...ble overall picture of
whether light intensity affects the rate of photosynthesis. I could
have extended the range on the distance axis so that I could find out
how this pattern evolves at the extremes of the axis and also do
sections of the range in more detail e.g. more dense results every 1mm
at the small end of the axis to see a more reliable pattern. I could
then conclude each part of the line of best fit in more detail and
explain the different stages of the experiment. I could have looked at
all the other limiting factors, maybe in the same experiment so I
could see the separate relationships and conclude which factor affects
photosynthesis more. Finally I could investigate the precise
mathematical relationship between these two factors using an equation
of the line of best fit and a Spearman's Rank calculation.
on the y. If my prediction is right I should be able to draw a
Experiment #1: The purpose of this experiment is to investigate the effects of baking soda and light intensity on the rate of photosynthesis of green spinach leave through the observation of floating disk.
The Effect of Light Intensity on the Rate of Oxygen Production in a Plant While Photosynthesis is Taking Place
An Analysis and Evaluation of Data from Photosynthesis Experiments Graph analysis This is my analysis for the investigation in to the affect of light intensity on the rate of photosynthesis to the Canadian pondweed, elodea. In the results the pattern is that when the light intensity is higher the readings are generally higher. On the graph the less the light intensity the lower the gradient of the curve. the equation for the photosynthesis process is; CO2 + 2H2O + Light Energy = =
Best region to allow for error on the ground. At this point we have only considered the best shot on the ground. Considering the best shot in the air, ideally the ball would be placed right under the cross bar. FIGURE 3.
The Effect of Light Intensity on Photosynthesis Of Elodea Canadensis Introduction I wanted to find out how much the light intensity affected the Photosynthesis in Elodea Camadensa. I decided to do this by measuring the amount of oxygen created during photosynthesis. Photosynthesis is the procedure all plants go through to make food. This process uses Carbon dioxide, water and light energy. It produces Oxygen and Glucose.
1. Would you illuminate your house plants with a green light bulb? Why or why not?
Investigating the Effect of Light Intensity on Photosynthesis in a Pondweed Aim: To investigate how the rate of photosynthesis changes at different light intensities, with a pondweed. Prediction: I predict that the oxygen bubbles will decrease when the lamp is further away from the measuring cylinder, because light intensity is a factor of photosynthesis. The plant may stop photosynthesising when the pondweed is at the furthest distance from the lamp (8cm). Without light, the plant will stop the photosynthesising process, because, light is a limited factor. However once a particular light intensity is reached the rate of photosynthesis stays constant, even if the light intensity is the greatest.
You will need to sum down for the first four orientations and sum across some of the rows, then sum down and divide by two for the last orientation. The chart should make it clear.
from 10cm to 50cm to make it easier to see the difference in a graph.
Photosynthesis is a process in which plants and other organisms convert the light energy from the sun or any other source into chemical energy that can be released to fuel an organism’s activities. During this reaction, carbon dioxide and water are converted into glucose and oxygen. This process takes place in leaf cells which contain chloroplasts and the reaction requires light energy from the sun, which is absorbed by a green substance called chlorophyll. The plants absorb the water through their roots from the earth and carbon dioxide through their leaves.
This graph shows the result that I expect to get, I expect to see a
An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis. Introduction Photosynthetics take place in the chloroplasts of green plant cells. It can produce simple sugars using carbon dioxide and water causing the release of sugar and oxygen. The chemical equation of photosynthesis is: [ IMAGE ] 6CO 2 + 6H20 C 6 H12 O 6 + 6O2 It has been proven many times that plants need light to be able to photosynthesize, so you can say that without light the plant would neither photosynthesize nor survive.
Photosynthesis is the process in which living cells from plants and other organisms use sunlight to produce nutrients from carbon dioxide and water, the image below “Diagram of photosynthesis 1,” helps show this process. Photosynthesise generally creates oxygen as a by-product through the use of the green pigment, chlorophyll, found in the plant that helps this reaction occur. “Photosynthesis provides us with most of the oxygen we need in order to breathe. We, in turn, exhale the carbon dioxide needed by plants,” (factmonster,2017). This is able to show us why photosynthesis is so greatly needed to occur through plants in order to give one another essentials needed for continuity of life. “Plants perform photosynthesis because it generates the food and energy they need for growth and cellular respiration,” (photosynthesieeducation, 2016).