Chloroplast

We get the energy to do things from a chemical reaction in our body that requires food molecules and oxygen. Food molecules and oxygen are generated by plants in a process called photosynthesis. We eat food and breathe in oxygen. The larger food molecules become subunits (such as glucose) in a chemical reaction called breakdown. Finally, our bodies use oxygen and glucose in the cellular respiration process to generate energy for our cells. Photosynthesis is the process in which plants get…

What are chloroplasts, where did they come from and what are they good for? We all know that chloroplasts are the site for photosynthesis in plants and what makes plants autotrophic. It allows the plant to be known as the ‘producer’ in a food chain. Being such an essential part of the plant cell, the question arises, where exactly did it come from in the first place: has it been a part of the plant cell since the beginning of time or did it evolve from some other species, and how is it able to…

Respiration and Photosynthesis Respiration and photosynthesis are reactions that take place in the environment which complement each other, in the other case can be seen as a same reaction but happening in reverse of each other (Tang, 2005). In photosynthesis the ingredients/ requirement for it to place is water and carbon dioxide as they release oxygen and glucose as the products. Respiration to take place requires glucose and oxygen to yield carbon dioxide and water. Since the product of…

How does light filtration affect the rate of photosynthesis? Introduction: Photosynthesis is an essential process plants use to convert light energy from the sun into chemical energy, released as glucose. Some of the limiting factors of photosynthesis include temperature, amount of light, the concentration of carbon dioxide, availability of water and the concentration of chlorophyll. Fig.1- The word and symbol equations for photosynthesis. The aim of the practical is to model the rate of…

In “Plant Pigment,” by Shirley Raps and Jeffrey Harborne, two types of plant pigments are discussed: photosynthetic and nonphotosynthetic pigments. Photosynthetic pigments are responsible for absorbing light and transferring energy during photosynthesis. Among this group of pigments are chlorophylls, phycobilins, carotenoids, and reaction center pigments which causes plants’ green, blue, yellow and orange colors, respectively. Nonphotosynthetic pigments are used to attract insects for…

APX2 as a Scavenging Mechanism for Superoxides in Chloroplast Mohammed Shilleh, Michael Stefano, Jacqueline Watkins, Kelsey Wyman Chin BSC4936 University of Florida APX2 as a Scavenging Mechanism for Superoxides in Chloroplast Introduction and Background Stress can be defined as a disruption of homeostasis. Chloroplasts are especially sensitive to stress and have many levels of defense against it. These defense mechanisms include adjustment of antenna size, thermal dissipation, photochemistry…

iii) Light intensity, cm-2 Formula of light intensity = (1/distance2) = cm-2 Eg : for 10cm = 1/((10.00cm)²) = 1/(100 cm²) =0.0100 cm-2 Distance of leaf discs from the light source (±0.05) cm Light intensity (cm-2) 10.00 0.0100 15.00 0.0044 20.00 0.0025 25.00 0.0016 30.00 0.0011 35.00 0.0008 Table 6: The table shows the…

Photosynthesis is the method of when the green plants and some different life forms use daylight to provide foods from carbon dioxide and water. Photosynthesis in plants includes the green color chlorophyll and produces oxygen as a result (What is Photosynthesis, P.1). Plants also use photosynthesis to create sugar. The sugars fuel a plant's roots, stems, and leaves so the plant can grow. It attempts to preform photosynthesis with leaves absorbing the sun’s light and then make the sugars within…

1. Did the carbon dioxide concentration in the classroom change as you monitored it during the Preliminary Activity? Why did it change (or not change)? Yes the carbon dioxide concentration in the classroom did change as we monitored it during the preliminary activity. It had dropped and become stagnant then dropped even lower before rising back to stagnant levels. This may be because there may have been a slight ventilation in the room at around 125 seconds. 2. What is the role of carbon…

Lab Question: Does the intensity of light affect the plant’s photosynthesis? Background information: There are three main elements which has a huge impact on the plant’s photosynthesis: light, temperature, and carbon dioxide.(Plant and Light) However, this lab is focused on how the intensity of light affect the plant’s photosynthesis in order to see how the intensity of light affect the plant’s photosynthesis, specifically Elodea plants. Photosynthesis is a process which happens in all plants…