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I. The effects of light intensity on Photosynthetic rate
What factors can affect rates of photosynthesis
I. The effects of light intensity on Photosynthetic rate
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THE FACTOR AFFECTİNG THE RATE OF PHOTOSYNTHESIS: LIGHT WAVELENGHT İpek Kâhya 10B No:55 1 CONTENTS Autotrophs chemoautotrophs photoautotrophs Photosynthesis Factors affecting the rate of photosynthesis Environmental Genetic Lab report Introduction Purpose Materials Experimental set-up Procedure Analysis 2 Autotrophs, can build organic compounds from simple molecules such as water and carbon dioxide and their type of feeding is called autotrophic nutrition. While they are building complex molecules, they need large amounts of energy. They are divided into two groups according to their source of energy: chemoautotrophs and photoautotrophs. Chemoautotrophs can synthesize organic compounds from CO₂ AND H₂O by using inorganic oxidation energy and they do not require sunlight. However, photoautotrophs, including green plants, produce sugar and O₂ from CO₂ and H₂O by using sunlight. The green pigment which absorbs the light is called chlorophyll and this process is called photosynthesis. Photosynthesis can occur in any green part of the plant. This green part contains chloroplasts. Chloroplasts separate photosynthesis and other cellular activities. The cytoplasm like liquid, stroma, in chloroplast consists of ribosome, DNA, and enzymes which takes part in photosynthesis. There are two stages in photosynthesis: light dependent and light independent. In light dependent stage, by using light energy water is broken into hydrogen and oxygen. In light independent stage, hydrogen reacts with CO₂. Also, water is reformed. This stage both happens when it is dark or light. Photosynthesis has very important roles in our lives. Michael Roberts says:”Although it is difficult to arrive at a total world figure for photos... ... middle of paper ... ...k, split off one leaf from both of the plants. Drop iodine to both of the leaves. 6 Analysis: When I dropped iodine to the leaf where I split off from the plant which had waited in red light, its color changed into blue. However, when I dropped iodine to the leaf where I split off from the plant which had waited in green light, its color stayed the same. It is because the plant waited in red light could make more photosynthesis than the other one, so it has more glucose and an iodine solution makes substance’s color blue if it has starch. It is used to test the presence of starch. 7 WORKS CITED Aydın Parim, Ganime. Biology with activities. İstanbul: Oran, Print. Kent, Michael. Advanced Biology. Oxford: Oxford UP, 2000. Print. Roberts, Michael, Michael J. Reiss, and Grace Monger. Advanced Biology. Walton-on-Thames: Nelson, 2000. Print. Works Cited
Photosynthesis consists of the following equation: Sun light Carbon dioxide + Water = = == == ==> Glucose + Oxygen Chlorophyll Chlorophyll is a substance found in chloroplasts, found in the cells of leaves.
Both starch and sucrose can be converted back into glucose and used in respiration. Photosynthesis happens in the mesophyll cell of leaves. There are two kinds of mesophyll cells - palisade mesophyll and spongy mesophyll. The mesophyll cells contain tiny bodies called chloroplasts which contain a green chemical called chlorophyll.
... has more CO2 than the negative controls. There will be more spinach circles in the red food coloring than the green and blue food coloring. My hypothesis was supported for both experiments.
Before learning about photosynthesis, I thought this was just a way for plants to grow, not knowing the full detail that goes on inside the plant for it to grow. So, after learning about what photosynthesis is and how it truly works, it is something that is remarkable and how plants are really the only living thing that uses this process. Photosynthesis is the process of 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, sunlight is absorbed through chloroplasts which contain chlorophyll or better known as the leaves of the plant. With the photosynthesis process, the plant can create a by-product known as oxygen gas which is released through the little pores into the atmosphere (Simon, Dickey, Hogan & Reece, n.d.).
Ghosh, Paramita. "Importance of Photosynthesis." Buzzle. Buzzle.com, 14 Apr. 2008. Web. 19 May 2014. .
The photosynthetic organisms use their internal makeup to carry out the process of photosynthesis. Their makeup is different from that of organisms such as animals. Plant and algae cells contain chloroplasts where photosynthesis takes place. The light reactions of photosynthesis drive the transformation of solar energy into ATP. The chloroplasts of plants contain pigment molecules (chlorophyll) which are responsible for capturing the light from the
Photosynthesis occurs within chloroplasts which are in leaf cells. It takes carbon dioxide and water "within the chloroplast, sunlight powers the conversion of these ingredients to a sugar called glucose and oxygen" (Campbell, 37).
C3 photosynthesis is the ancestral form of photosynthesis and is present in the majority of plant species (Sage, Sage & Kocacinar 2012). In this process CO2 enters the mesophyll cell (mc) via openings in the epidermis called stomata and diffuses into the into the chloroplast where it enters the Calvin cycle (Raven, Evert & Eichhorn 2013). The Calvin cycle is made up of three stages: 1. Carboxylation of Ribulose-1,5-bisphosphate (RuBP). In which a molecule of CO2 is covalently bonded to a molecule of RuBP forming the first stable intermediate 3-Phosphoglycerate. It is from this 3 carbon product that the name C3 photosynthesis comes from. This reaction catalysed by the enzyme Ribulose-1,5-bisphosphate carboxylase-oxygenase (Rubisco) 2. Reduction of 3-phosphoglycerate to the carbohydrate glyceraldehyde-3-phosphate, utilizing the ATP and NADPH formed in the light harvesting reactions. 3. Regeneration of the initial substrate RuBP (Taiz & Zeiger 2006). These stages encompass thirteen different reactions the net result of which is:
Photosynthesis is a process in plants that converts light energy into chemical energy, which is stored in bonds of sugar. The process occurs in the chloroplasts, using chlorophyll. Photosynthesis takes place in green leaves. Glucose is made from the raw materials, carbon dioxide, water, light energy and oxygen is given off as a waste product. In these light-dependent reactions, energy is used to split electrons from suitable substances such as water, producing oxygen. In plants, sugars are produced by a later sequence of light-independent reactions called th...
In plants, proteins called photosynthetic reaction centers contain green chlorophyll that absorbs light energy. These proteins are held inside organelles called chloroplasts, which is abundant in leaf cells. In contrast, bacteria house the proteins in the plasma membrane. Chloroplasts are found in the cells of green plants and photosynthetic algae where photosynthesis takes place. Inside the chloroplast are folded structures in disk-shaped arrangement called thylakoids, which enclose chlorophyll in their membrane. Only certain portions of the light spectrum can be absorbed and the photosynthetic action spectrum is dependent on the type of accessory pigment present. Green plants mostly absorb red and blue wavelengths because the action spectrum corresponds to absorption spectrum for chlorophylls and carotenoids. The color of the pigment comes from the wavelengths of light reflected. Plants appear green because they reflect yellow and green wavelengths of light. Photosynthesis involves two series of chemical events, called the light independent that occurs in the stroma and light dependent reactions that occurs in the lumen. They are also known as light and dark reactions this terminology is somewhat ambiguous, because the entire process of photosynthesis is regulated to take place when an organism absorbs visible light. Organized clusters of chlorophyll and beta-carotene in the thylakoid membrane are present to
Photosynthesis is plants taking in water, carbon dioxide, and light to make sugar and oxygen. All producers make oxygen and sugar for the secondary consumers and then the carnivores eat animals that eat the plants. This article explains how Photosynthesis happens in the Chloroplast of the plants organelle, if the Chloroplast wasn't in the plant Photosynthesis couldn't happen. If living things didn't breathe out CO2 then the plants would die and living things would have no way of getting oxygen. This article also proves that without photosynthesis, we would not live long. Photosynthesis can help us get the fresh water we need and make sure we have enough oxygen to
Photosynthesis and cellular respiration help sustain life on planet earth as both are metabolic processes in their own way. Photosynthesis is the process by which plants and other organisms use energy from the sun to form glucose from water and carbon dioxide. From there, glucose is then converted to ATP by way of cellular respiration. To convert nutrients that are biochemical energy into ATP, a process such as cellular respiration that has reactions needs to take shape in the cell of an organism, releasing waste products at the same time. For the continuous energy cycle that tolerates life on Earth as we know it Photosynthesis and Cellular respiration very essential. They have a few stages where energy and various connections occur within the eukaryotic cell. Cellular respiration takes place in the lysosome, an organelle that is found in the cytoplasm of eukaryotic cells. It uses enzymes to break down biomolecules including proteins, nucleic acids, carbohydrates, and lipids. Photosynthesis involves the chloroplasts, which contain pigments that absorb the sunlight and then transfigure them to sugars the plant can use. Those specific processes are crucial in how far and diversified evolution has
This helps consumers called heterotrophs and autotrophs use organic molecules produced by photosynthesis as a building block for growth and repair and as a source of chemical energy for cellular work. (Mader, 2013) Photosynthesis produces an enormous amount of carbohydrate that humans use to convert it into coal.
An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis. Introduction Photosynthetics take 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 ] 6CO 2 + 6H20 C 6 H12 O 6 + 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 neither photosynthesize nor survive.
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