Photosynthesis And Cellular Respiration Lab Report

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.

In this lab we are measuring the amount of oxygen used in both germinating and non germinating peas. We are measuring the oxygen consumption by taking a reading of a respirometer submerged in two water baths. The first bath will be cold water and the second warm to determine the effect of temperatures on oxygen consumption. Our negative control will be glass beads to measure to increase or decrease in atmospheric pressure or temperature changes. There is a direct relationship between oxygen consumption and Carbon Dioxide produced, therefore the more O2 consumed the more CO2 produced. To keep the amount of CO2 produced from canceling out any pressure gained or lost from the consumption of

The Cellular respiration and photosynthesis form a critical cycle of energy and matter that supports the continued existence of life on earth. Describe the stages of cellular respiration and photosynthesis and their interaction and interdependence including raw materials, products, and amount of ATP or glucose produced during each phase. How is each linked to specific organelles within the eukaryotic cell? What has been the importance and significance of these processes and their cyclic interaction to the evolution and diversity of life?

Hello, my name is Audrey and welcome to my presentation on the chemistry of photosynthesis and cellular respiration.

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.

The technique that allows scientists to follow with their own eyes the dynamic movements of specific proteins as they occur within the living cell is the green fluorescent protein. This is a protein that is extracted from only a few jellyfish. This diffuses a green fluorescent colored light. The green fluorescent protein can be blended to the protein and can work normally and so does the protein itself that it is binded to. The protein is not affected and can be moved and transported throughout the cell and can then be seen.

The purpose of this lab is to understand the process of photosynthesis and how sunlight effect has on it. To prove that in order for photosynthesis to happen light is needed, and to see if temperature has an effect on how fast or how slow photosynthesis happens.

The process of photosynthesis involves converting carbon dioxide (CO2) and energy from the sun into chemical energy, whilst producing the by-product of oxygen, providing energy and oxygen for many forms of life. This experiment was conducted to determine under which conditions (light and CO2 levels) photosynthesis best occurs. The experiment was conducted by extracting the gases from Beta vulgaris (silver beet), placing them in different treatments and testing for floatation after 20 minutes. The three treatments used include: sunlight with CO2 (sodium bicarbonate), sunlight without CO2 and dark with CO2. Due to the highest percentage of floating disks, the best conditions

Photosynthesis Shelly Sterling Professor Soto Bio Lab 111L Shelly Sterling Bio Lab Report 12/3/2017 Photosynthesis Lab

 DNA is in the living cell and it can be subject to many chemical alterations.

Photosynthesis and respiration are “reversible” because both are apart of energy flow and chemical recycling in the ecosystem. Light energy, carbon dioxide, and water are gathered for the first stage of photosynthesis which is called light reaction. The second stage of photosynthesis called the Calvin cycle produces glucose, oxygen, and other organic molecules. The products of photosynthesis are then used in the mitochondria to break down glucose, oxygen, and organic molecules which releases ATP, heat energy, carbon dioxide, and water. As ATP and heat energy is used to perform work, carbon dioxide and water is used to carry out photosynthesis resulting the cycle to repeat.

In this experiment the effects of exogenously applied RA on early neural development of zebrafish embryos were observed. It included immunocytochemical and histochemical analysis of the developing embryos along with quantitative analysis of their anatomy. Knowing that RA is a positional signaling molecule, they wanted to observe the changes that occur to the anatomy of the zebrafish embryos at different stages when exposed to RA. Embryos at 50% epiboly and midgastrula stage were exposed to RA concentrations ranging from 10-9¬ to 10-6 M, and embryos at early and late gastrula stages were exposed to RA concentrations of 10-7 M. For immuniohistochemical analysis, antibodies 4D9, HNK-1, and MZ15 were used, HNK-1 was used as a marker of neural crest migration, MZ15 in labeling notochord tissue, and 4D9 in identifying engrailed

This experiment consisted of 3 respirometers, one with ants, one with radish seeds, and one with glass beads. Each with 4 pellets of KOH and a piece of cotton. They were placed in a water bath that was at 75 degrees fahrenheit. A bubble at the end of the respirometer was measured every five minutes, and this distance showed how well the organisms were respiring. The radish seeds were able to do the most cellular respiration in 25 minutes, with the ants being a close second, and the control respirometer of the glass beads doing the least.

Photosynthesis and respiration are reactions that complement each other in the environment. In reality, they are the same reactions, but they occur in reverse. During photosynthesis, carbon dioxide and water yield glucose and oxygen. Through the respiration process, glucose and oxygen yield carbon dioxide and water. They work well because living organisms supply plants with carbon dioxide, which undergoes photosynthesis and produces glucose, and these plants and bacteria give out oxygen, which all living organisms need for respiration.

However, the photosynthetic process can be affected by different environmental factors. In the following experiment, we tested the effects that the light intensity, light wavelength and pigment had on photosynthesis. The action spectrum of photosynthesis shows which wavelength of light is the most effective using only one line. The absorption spectrum plots how much light is absorbed at different wavelengths by one or more different pigment types. Organisms have different optimal functional ranges, so it is for our benefit to discover the conditions that this process works best. If the environmental conditions of light intensity, light wavelength and pigment type are changed, then the rate of photosynthesis will increase with average light intensity and under the wavelengths of white light which will correspond to the absorption spectrum of the pigments. The null hypothesis to this would be; if the environmental conditions light intensity, light wavelength and pigment type are changed, then the rate of photosynthesis will decrease with average light intensity and under the white light which will correspond to the absorption spectrum of the pigments.