ipl-logo

Elodea Light Intensity Essay

778 Words4 Pages

Aim: How does light intensity affect the rate of photosynthesis in Elodea (pondweed)?
Introduction: In this experiment, we were testing the rate of photosynthesis in elodea. For a plant to photosynthesize, it needs carbon dioxide and water and sunlight, a factor of photosynthesis. In order for us to measure the rate of photosynthesis, we needed to measure the products that were made, glucose and oxygen. As oxygen was a visible product, we counted the oxygen bubbles made when we moved the source of light.
Hypothesis: Plants need light to photosynthesize. In this experiment, the light intensity is changed by changing the distance of the source of light closer or further away from the elodea, so theoretically, when the intensity becomes stronger due to the light source being closer to the Elodea, the rate of photosynthesis should increase and …show more content…

I believe that the higher the light intensity is, increases the rate of photosynthesis as it is would no longer be a limiting factor of photosynthesis and therefore the plant would photosynthesize at a higher rate, which is shown in my results. My investigation has proved evidence to support my hypothesis. Evaluation: Overall, there was an increasing trend, however at 20cm there was an anomaly that occurred as it did not follow the pattern that the other results displayed. However, this could have been due to a number of factors, the plant may have been tired or there could have been another limiting factor, e.g. temperature or carbon dioxide. One of the variables that we could not control was the size of the oxygen bubbles or the age of the plant which may have influenced our experiment. I do not believe that our measurements were accurate due to influential factors that may have affected the results. There were external light intensities that also may have influenced the results. To improve my investigation, I

Show More
Related

Observation In Burns Bog And Watershed Park

783 Words | 4 Pages

In Burns Bog and Watershed Park, the light was blocked at certain times because of the cover of the trees. Light intensity affects the rate of photosynthesis as with more sunlight, more carbon dioxide can be produced for the plants to grow. The types of vegetation is affected by light intensity as when the amount of sunlight decreases, the growth decreases as well. This is why SWMA has more grass plants such as, Aster and Colonial Bent Grass. According to the Spearman's Rank Correlation Coefficient, the correlation coefficient of light intensity and Aster is 0.4.

Read More

Nahco3 Lab Report

558 Words | 3 Pages

This finding could have been due to experimental errors which affected the results. Discussion

Read More

Nt1310 Unit 1 Assignment

1984 Words | 8 Pages

The most important result from this experiment is that it suggested that the increase of Carbon Dioxide, will drastically increase the growth mountain maple in the covered (from the sun) parts in a forest, in the meantime any increase in the temperature of the soil will nullify the increase of light, as we know is to be the main ingredient for photosynthesis. 5. The authors do not use any citations in the

Read More

Quantitative Spectroscope And Visible Light Lab Report

807 Words | 4 Pages

Jessica Vandeventer 23 March 2016 Quantitative Spectroscope and Visible Light Purpose/Question- The purpose of the lab is to build a diffraction grating spectroscope, and to view different lights. We also are going to draw the light spectra of the various light sources.

Read More

Summary Of Four Lighting

697 Words | 3 Pages

Looking at the Dakota prisoner of war letters we can see society through a lens that is often hidden in historical records, that being the perspective of Native Indians. The Natives, who occupied the land now known as the Midwestern United States, were treated like animals and savages by the European settlers who were continually moving west. The Dakota POW letters show that much like the European settlers, the Natives were a society with families and values that shouldn’t be treated different because of their heritage. David Faribault Jr. (also known as Four Lighting) argues that the Dakota people deserve to be treated as equals and human, and shouldn’t be prosecuted for “bad deeds” committed by other tribal members. The Dakota POW letters

Read More

Spinach Leaf Photosynthesis Lab Report

1169 Words | 5 Pages

Because carbon dioxide is absorbed by the plant during photosynthesis less carbon dioxide present in the chamber is a sign that photosynthesis is working. The four lights used for this experiment range across the light spectrum on both sides in order to test a wider variety of wavelengths. All lights will be placed directly on the spinach leaf at the same distance so as not to give any spinach leaf a different light intensity, which could affect the data. This experiment will be able to show which light, ranging across the light spectrum, will allow the Spinach to perform photosynthesis more efficiently.

Read More

Arden Little Light Analysis

612 Words | 3 Pages

I am writing to you because I am quite fearful of your current mental state. I understand that residential school is extremely stressful and emotionally distressful. Firstly, I have read the news regarding your classmates, from the suicides to the disease. Your life currently is very dark and lonely because grandmother passed away and your parents have abandoned you. What happened to Arden Little Light and the rest of your classmates that decided to commit suicide deeply dented even my own mental state.

Read More

Dim Light Lab Report

467 Words | 2 Pages

In the above hypotheses, the research done previous to the lab supported the alternate hypotheses for the colored lights in relation to the dim lights, and the null hypothesis for the experiment in which both sides of the chamber had dim light. The dim light on Side B of the chamber would be favored because, in a previous study, D. Melanogaster were exposed to different illuminations, and “their favorite resting, grooming, and feeding places were determined with an infrared-sensitive camera.” Additionally, the study used infrared beams to collect data on the activity levels of the flies during their most active period of the day under different light intensities. Each of these methods demonstrated D. Melanogaster’s preference for dim light occurring “between 5 and 10 Lux” (Rieger et al.).

Read More

Why Do Leaf Disks Produce Oxygen The Fastest

313 Words | 2 Pages

The hypothesis proposed that if the leaf disks were put in solutions that are at different temperatures, then the leaf disks in the warmest solution would produce oxygen the fastest. The data revealed that there is great support for this hypothesis. The data showed that the solution with all ten of the leaf disks floating in the least amount of time was the 38°C solution which was the warmest. In contrast the solution that had the least amount of leaf disks, about seven and a half leaf disks, was the 7°C solution which was the coolest. The control solution had the second most leaf disks, on average, floating at 20 minutes.

Read More

Analysis Of The Best Possible Light By Melissa Bank

428 Words | 2 Pages

Today we live in a lost world. We live in a Utopia society, where everything is imaginary and perfect. But is that the truth. Can we live in a world without war, conflicts, and disasters? Have we lost the truth of the reality, have we lost our minds to think, and the ability to be realistic?

Read More

Photosynthesis Lab

867 Words | 4 Pages

Even though that hypothesis was proven correct, there is still a possibility that there is some error in our results. One source of error could have been that on the first day of testing it was very cloudy outside and then on the second day it was very sunny. This could have caused the rate of photosynthesis to be much less on the first day than the second day because it received less sunlight on that day. Another source of error could have been the fact that the bottles were not thoroughly washed before a different plant sample was used in them. There could have been residual matter

Read More

Floating Leaf Photosynthesis Lab Report

219 Words | 1 Pages

In this experiment, the sodium bicarbonate increases the rate of photosynthesis. Which trial resulted in all the leaf disks floating the fastest? Explain why you think this happened? Lettuce.

Read More

The Shining Lighting Analysis

755 Words | 4 Pages

The most critical part of a horror movie, is the suspense. The Shining did a satisfying job when it came to each scene, having its own little twist. These little twists added up in the end to make the film as striking as possible. With these little twists in mind it brings an example out from the movie. This is shown by the scene in which, the little boy named Danny is in his bathroom talking to his invisible friend Tony, in which lives in Danny’s mouth.

Read More

Effect Of Light Intensity On The Rate Of Transpiration

1950 Words | 8 Pages

Background Information: In this experiment I will be investigating the impact of light intensity on the rate of water uptake, due to transpiration, by attaching a shoot from a leafy plant in the capillary tube of a potometer, and then measuring how long it takes for a bubble to move a set distance. The faster the bubble moves, the greater the rate of transpiration. I will be placing one plant in an environment where it is exposed to high-light intensities, and another plant in an environment where it is exposed to low-light intensities. Transpiration is the process of the transport of water and nutrients up the the plant from the roots to the leaves.

Read More

Playing In The Light Analysis

754 Words | 4 Pages

Zoe Wicomb’s novel, Playing in the Light (2006), is set in the 1990s in Cape Town, South Africa, post apartheid. The novel revolves around Marion, the protagonist, and her intricate relationship with Brenda, the first person of color she has ever employed at her travel agency business. This post apartheid novel offers interesting and an insightful viewpoint of South Africa following the fall of apartheid. By analyzing the passages in this novel, one will be able to better understand race in the context of South Africa.

Read More

More about Elodea Light Intensity Essay

Related Topics

Open Document