Chloroplast Essays

  • Mitochondria And Chloroplast Essay

    571 Words  | 2 Pages

    I. Introduction Out of all the organelles there are two that have fascinated microbiologists for the past hundred years. The first is the mitochondria, nicknamed the "powerhouse of the cell." The second is the chloroplast in plant cells that have functions similar to those of the mitochondria. What do these organelles do? What are the similarities and differences of these organelles? This essay will help you to understand these two fascinating organelles. II. Mitochondria Mitochondria are small

  • Chloroplast Research Paper

    1504 Words  | 4 Pages

    Chloroplasts Chloroplasts are a group organelles called plastids. The most primitive form of plastids are the progenitor of which, under the influence of sunlight formed chloroplasts. Chloroplasts are oval in shape and size of 3 to 10 nm. They contain photosynthetic pigments, among others chlorophyll carotenoids. Chloroplasts are covered with double cytoplasmic membrane. Inner membrane delimits a space, which is called steep. In the stroma they are flattened membranous vesicles (thylakoid) set on

  • Endosymbiosis

    1041 Words  | 3 Pages

    However, only some of the eukaryotic cells (plant cells) form chloroplasts through endosymbiosis after the mitochondrion is formed. Some of the prokaryotic cells ingest cyanobacteria. These bacteria contain photosynthetic pigments that are useful in photosynthesis. The cyanobacteria become dependent upon the host cell and can no longer survive on its own. Over time, it becomes the chloroplast, a main organelle of plant cells. The chloroplast is then able to convert energy from the sun to energy-rich

  • Spinach Lab Report

    704 Words  | 2 Pages

    The results verified that the spinach had the highest chloroplasts concentration because it had the absorbency of 0.730, 0.826, 1.011, and 1.049 as shown in Table 1-4. The spinach was our positive control because, from a previous experiment, we knew that it would have chloroplasts; the buffer sucrose was the negative control because if the cabbage or lettuce did not have any contents of chloroplasts, then the readings should be equivalent to the buffer sucrose since it was our blank solution. Therefore

  • The Importance Of Photosynthesis

    900 Words  | 2 Pages

    need for growth and cellular respiration,” (photosynthesieeducation, 2016). Photosynthesis is a cycle plants go through converting light into chemical energy for use later. Photosynthesis starts in the chloroplasts, they capture chlorophyll, an important chemical needed for photosynthesis. Chloroplasts also take water, carbon dioxide, oxygen and glucose. The chlorophyll is taken to the stroma, where carbon dioxide and water mix together to make

  • Recpiration: The Process Of Photosynthesis And Recpiration

    852 Words  | 2 Pages

    process occurs in plants and some algae . Plants need only light energy,co2,and H2o to make sugar . Chlorophyll is a molecule in chloroplasts that absorbs some of the energy in visible light. photosynthesis in plants occurs in chloroplasts, chloroplasts absorb energy from sunlight and produce sugars through the process of photosynthesis ,the main parts of chloroplasts are grana and stroma. Grana are stacks of coin- shaped, membrane-enclosed compartments called thylakoids , thylakoids are surrounded

  • Endosymbiosis and evolution of Organelles

    1627 Words  | 4 Pages

    reduced into mitochondria which were transmitted to future generation vertically (Debashish et al., 2003). The evolutionary history of plants involves at least two independent endosymbiotic events (as shown in Figure 1); because plastids such as chloroplast evolved when a primary endosymbiotic event caused photosynthetic cyanobacteria to be engulfed by some non-photosynthetic host cells (Dyall et al., 2004). Chlorophyta, Rhodophyta and Glaucophyta are three clades, belonging to the group Archaeplas

  • Light Dependent Reactions During Photosynthesis

    571 Words  | 2 Pages

    things, Light Dependent Reactions and Light Independent Reactions which both take place inside of chloroplast cells. Photosynthesis is the process in which autotrophs, organisms that make their own food, use sunlight to process their own food. Water, sunlight, and oxygen are all substances that undergo change during photosynthesis and oxygen and glucose are the products of the reactants. Chloroplasts, the cell where photosynthesis takes place, contains thylakoids, the granum, and the stroma. Light

  • Mitochondria

    938 Words  | 2 Pages

    dramatically increase the surface area of the inner membrane. Cristae extend into a dense material called the matrix, an area which contains RNA, DNA, proteins, ribosomes and range of solutes. This is similar to the contents of the chloroplast stroma and like the chloroplast, the mitochondrion is a semi-autonomous organelles containing the machinery for the production of some of its own proteins. The main function of the mitochondrion is the oxidation of the pyruvate derived from glycolysis and related

  • How Does Wavelength Affect The Rate Of Photosynthesis

    668 Words  | 2 Pages

    When light energy is converted into chemical energy due to the presence of chloroplast, the specialised cell structure found in plants, can be described as photosynthesis. During the day, the input includes carbon dioxide, water, and light, whilst the output consists of glucose and oxygen (Encarta Encyclopaedia 2000). At night, photosynthesis stops and plant-cells consume oxygen as animal cells. Photosynthesis is the process in which plants, algae and photosynthetic bacteria converts sunlight into

  • Factors Affecting Photosynthesis

    1010 Words  | 3 Pages

    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. Here is the equation for photosynthesis:

  • Rubisco Case Study

    2164 Words  | 5 Pages

    and diagrams Assignment: Ribulose 1,5-Bisphosphate Carboxylase/Oxygenase (Rubisco) Rubisco is a biological catalyst which fix carbon dioxide on Ribulose 1,5-bisphosphate(RuBP) in the process of photosynthesis. Rubisco is found in the stroma of chloroplast and cytoplasm of photosynthetic bacteria (Keys, 1986). The availability of Rubisco in both plants and archaea-bacteria makes rubisco the most plentiful protein in the world (Helmenstine, 2016). Rubisco’s active site is specific to RuBP, carbon dioxide

  • Sunflower Photosynthesis Lab Report

    609 Words  | 2 Pages

    Introduction: Sunflowers are classified under Kingdom Plantae. Sunflowers are unicellular eukaryotes that are autotrophic. This means that they have specialized cells, with a membrane bound nucleus and membrane bound organelles.The term autotrophic means that the plants have the ability to produce their own energy.The process that plants use is called photosynthesis. There are two types of photosynthesis, oxygenic photosynthesis and anoxygenic photosynthesis. The sunflower is native to America

  • An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis

    970 Words  | 2 Pages

    An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis Introduction Photosynthetic takes 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]6CO2 + 6H20 C6 H12 O6 + 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

  • Cellular Respiration And Photosynthesis Essay

    1028 Words  | 3 Pages

    taking in carbon dioxide (CO2), which is a gas that is exhaled from animals and goes into the air and is absorbed into a plant, water (H2O) which is absorbed through the roots of a plant or known as capillary action, sun light is absorbed through chloroplasts which contains chlorophyll or better known as the leaves of the plant. Sun light is what helps break down and rearranges the atoms of these two, which produces sugars (glucose, C6H12O6), and this is photosynthesis at its finest. With the photosynthesis

  • Synthesis Lab Experiment: An Experiment On Photosynthesis

    1779 Words  | 4 Pages

    Introduction: Photosynthesis is the process where plants transform light energy usually from sunlight into chemical energy and its balanced equation is 6CO2 + 6H2O –light energy----> C6H12O6 + 6O2 (Elsevier B.V.,LiveScience). Photosynthesis has major byproducts including water, glucose and starch(which is produced in the plant), and last but not least; oxygen. There are numerous amounts of plants all around the world producing CO2 necessary for human survival. However, the photosynthesis cycle is

  • Chloroplast Essay

    697 Words  | 2 Pages

    The high rate of absorbance change in blue light in the chloroplast samples (Figure 1) can be attributed to its short wavelength that provides a high potential energy. A high rate of absorbance change is also observed in red light in the chloroplast samples (Figure 1), which can be accredited to the reaction centre’s preference for a wavelength of 680nm and 700nm – both of which fall within the red light range (Halliwell, 1984). Green light showed low rates of photosynthetic activity and difference

  • Chloroplasts Essay

    1837 Words  | 4 Pages

    Chloroplast fractionation: Nucleic acid and protein analysis via gel electrophoresis ABSTRACT: Chloroplasts carry out photosynthetic processes to meet the metabolic demands of plant cells (Alberts, 2008). They consist of an inner thylakoid membrane and a stroma. (Parent et. al, 2008).In this experiment we demonstrate the unique protein compositions of isolated thylakoid and stromal fractions from broken and whole spinach chloroplasts. Because these compartments carry out different metabolic processes

  • Stomatal Density Experiment Lab Report

    678 Words  | 2 Pages

    Introduction The purpose of the Stomatal Density Experiment was to examine the differences in the number of stomata found between young and old leaves in a single plant. Stomata on small surfaces, are small pores in the epidermis that allow carbon dioxide to enter aiding the process of photosynthesis, and when the process is done it will release both oxygen and water vapor. Stomata can control the amount of gas exchange but openly and closing the pores. Also, the stomata is usually found on the bottom

  • Exploring the Interface of Physical and Non-Physical Entities

    600 Words  | 2 Pages

    It can be readily observed that the wind, a non-physical entity, is able to interact with physical entities such as trees. Does this contradict the belief that the soul, a non-physical entity, is unable to interact with the body? In the reading Philosophy Before Socrates by Robert Mckirahan I was impressed by the elements discussed in the story on Democritus. The idea of the element of wind prompted the questions of physical and non- physical entities in my mind. When I consider the tree and the