Autotrophic Organisms Undergo the Proecess of Phototsynthesis

Have you ever really wondered how different variables can affect how plants go through photosynthesis? Well, in this experiment, the purpose was to see how various environmental conditions can affect the overall photosynthetic capacity of a specific plant. The factors, light, darkness, cold, and heat were applied to see how the different components would affect the photosynthesis on spinach plants. Each group was given a different factor to test. Out group was given the light factor. The hypothesis for this experiment is that when adding light as a factor, the light will affect the overall plant photosynthesis.

Introduction: Photosynthesis can be defined as a solar powered process that removes atmospheric carbon dioxide and transforms it into oxygen and carbohydrates (Harris-Haller 2014). Photosynthesis can be considered to be the most important biochemical process on Earth because it helps plants to grow its roots, leaves, and fruits, and plants serve as autotrophs which are crucial to the food chain on earth. Several factors determine the process of photosynthesis. Light is one these factors and is the main subject of this experiment. The intensity of light is a property of light that is important for photosynthesis to occur. Brighter light causes more light to touch the surface of the plant which increases the rate of photosynthesis (Speer 1997). This is why there is a tendency of higher rates of photosynthesis in climates with a lot of sunlight than areas that primarily do not get as much sunlight. Light wavelength is also a property of

The purpose of this lab is to observe the effect of white, green, and dark light on a photosynthetic plant using a volumeter and followed by the calculation of the net oxygen production using different wavelengths color of white and green light, and also the calculation of oxygen consumption under a dark environment, and finally the calculation of the gross oxygen production.

The rate of photosynthesis is affected by environmental factors like light intensity, light wavelength, and temperature. This experiment will test the

An important part of photosynthesis is the intake of carbon; thus, it can be presumed that increasing the amount of available carbon will increase photosynthetic activity. In most plants there is an increased rate of photosynthetic rate, but it is limited by other factors and reaches a plateau (Lei H, Zhishan Z.

The Industrial Revolution was a period that changed the course of human history in many ways. People often think of the positive outcomes rather than the negative consequences, for example, the creation of a more efficient manufacturing process that resulted in more products and profits. However, the industrial revolution also paved ways for humans to increase the amount of pollution being put into the atmosphere immensely. Evidence of this is seen in various graphs of Carbon Dioxide, Methane, and Nitrous Oxide. In these graphs, there is a notable spike in these levels starting around the mid 1800s, which is also around the time the Industrial Revolution started to take off and spread around the world. In the data of CO2 emissions, Carbon Dioxide was about 280 ppm (parts per million) in the pre-industrial time period, since then CO2 levels have increased rapidly resulting in around 407 ppm, which is the highest level humans have ever experienced. This being said, the whole human race needs to be self-conscious of what get exposed to Earth’s atmosphere.

Purpose: The purpose of this lab was to determine how light affected the amount of oxygen gas produced over time. The amount of oxygen gas consumed during cellular respiration and produced during photosynthesis was measured. The experiment also determined the rate of respiration and photosynthesis of a plant.

Abstract: An experiment was carried out to determine how certain factors such as light intensity and availability of carbon dioxide, affected the rate of photosynthesis. The rate of photosynthesis was measure by the amount of oxygen produce (cm3/min).

The hypothesis that an increase in algae concentration when exposed to light would increase the rate of photosynthesis in diluted indicator solution was supported by the results of this investigation. As Table 1. Indicates the pH levels and absorbance (AU) increased in respects to an increase in algae concentration when the algae was exposed to light. However when an equal amount of algae concentration was not exposed to light the absorbance and pH levels of the algae was lower, therefore indicating that light and algae concentration increased the rate of photosynthesis in algae. Figure 1. also demonstrates that the mean absorbance of algae increased with an increase of pH levels and therefore increased the rate of photosynthesis occurring in the algae.

Problem/Purpose: The purpose behind this lab was to create and conduct an experiment to observe cellular photosynthesis. There are many factors that are being observed such as environmental variables, which means how the environment affects the rate of photosynthesis. Photosynthesis is a process used throughout many organisms, the process itself is converting light energy into chemical energy. The process occurs in enzyme-mediated steps that will capture light to convert it into energy rich carbohydrates for other organisms to use. The process can be broken down into the reaction 2H2O + CO2 + light → carbohydrate (CH2O) + O2 + H2O.

Technological innovations continue to provide a favorable impact on modern society. While they mainly have a positive impact on society, it is not always favorable towards the natural environment. The integration of multiple sources of pollution provide a negative impact on the planet’s atmosphere. The greenhouse gasses emitted into the air are the main components that contribute to the warming of the Earth, prompting climate change. Carbon dioxide, discharged from any technologies involving the burning of fossil fuels as a power source, continues to be voided out into the atmosphere. Daily,

Photosynthesis is a vital process that autotrophs use to transfer light energy into chemical energy. Photosynthesis ultimately produces O2 and glucose. It, like many other biological processes, can be affected by environmental variables. The variable that we altered in the following experiment are intensity, light wavelengths, and pigment types. In order to do this, we conducted three experiments. In the first experiment, we examined the effect of light intensity by placing vials with chloroplasts with DPIP at different light distances in which the results varied. Initially, 30cm away was the most effective for photosynthesis. Then 24cm appeared to be the most effective. Followed by 49cm at minutes 25 and 30. In the second experiment, we

Carbon Dioxide, also referred to as Co2, is one of the adverse chemicals that has been contributing to climate change for decades. The careless attitude and dangerous professions of humans are, almost collectively, directly responsible for the ever - rising Carbon Dioxide concentration in our air. By reason of the industrial revolution jobs such as; aluminum production, farming with large equipment, working with leather, mining, welding, and sewer/ waste treatment (Tox Town). Most of the more industrial jobs require use of large

However, over time, industrialization would have a dangerous effect on the world’s environment. During the Industrial Revolution would see an increase I environmental pollution, as new sources of fuel was burned such as coal, which fueled factory furnaces, machinery, and steam engines. (Glover 200). As the years continued countries such as Spain, the U.S and the rest of the west would begin to Industrialize, and the increase in pollution would grow exponentially. The movement from an agrarian-urban pattern of life to industrialize city and towns. A blanket of smoke would fill the air, composed of carbon dioxide, nitrogen, and other harmful substances. Today, nearly ¾ of the world, countries are industrialized and with new discovery in oil and a booming consumer demand that requires more goods produced at faster rates, industrialization has created more carbon emissions than the trees and oceans can absorb and the consequences of this is global warming, according to the text Patterns of World History “Until about the last quarter of the twentieth century the carbon footprint of these countries had risen from 280 parts per million (ppm) pounds---commonly called “greenhouse gases”—to 330 ppm. Between 1975 and 2010 the concentration of greenhouse gases in the atmosphere climbed to 380ppm.” (Sivers, et. al., 1134) Showing that through the emissions of these gases the world is getting hotter. The consequences of a hotter world are changing

In recent decades we have witnessed a gradual change in our environment. Our planet is heating up very quickly which leads to the so called global warming. Humanity has come to understand that its actions are the cause of this warming. The industries of our industrialized countries emit an enormous amount of green-house gases such as carbon dioxide